5th Gen Calipers

CookieRoe said:

...Sorry guys, this mod does JACK S++T to prevent stuck calipers. To those who say, "Because the hardware is bigger, I stop better". Whatever man.

Most of us did this mod b/c we ALREADY needed to replace the calipers and doing this is fine (for those of us who have Limiteds/Sports), but don't expect the stuck caliper problem to go away. It won't.

Good speed to those who did this mod and have/haven't had recurring sticky calipers.

Click to expand...

Same here! I've had it with the swapping of the calipers numerous times already as well as jumping on the 5th gen swap hype. Moved on to a Wilwood BBK so hopefully that lasts (I hope so, I can't go back with what these babies can do).

Mike07SE said:

Same here! I've had it with the swapping of the calipers numerous times already as well as jumping on the 5th gen swap hype. Moved on to a Wilwood BBK so hopefully that lasts (I hope so, I can't go back with what these babies can do).

Click to expand...

Wilwood??? Wow, my respects. That is a serious upgrade, good luck and report back if you can/want (hahah).

Mike07SE said:

Same here! I've had it with the swapping of the calipers numerous times already as well as jumping on the 5th gen swap hype. Moved on to a Wilwood BBK so hopefully that lasts (I hope so, I can't go back with what these babies can do).

Click to expand...

Wow! Those are sweet! Too bad they don't make something for the rears too!

Wilwood Disc Brakes - 2008 Toyota 4Runner All - Front Brake Kit No.: 140-14577-DR

After reading a ton of posts about stuck pistons not only in our trucks but also other vehicles and analyzing my calipers and their stuck pistons, it appears the issue starts with corrosion from the outside making it's way inside. At least this is the only thing that I found to be the issue and after cleaning out the grease and rust, the pistons did not become stuck again until a year after.

I've noticed that on every piston that seized/froze, there was always rust making it's way under the piston boots (through the metal) and inside between the pistons and caliper's piston cylinder. It doesn't take much for a piston to seize/freeze especially with such tight tolerances AND heat. Heat will cause parts to expand and change tolerances.

Also I've gone away from any Permatex product regardless if it states "Synthetic", "Ceramic" or any of their marketing lingo because I've noticed that any of their stuff typically dries out and turns into a thick paste from heat in very little time usually a few months. Found that much of the stuff you find out there today is made "eco friendly" and it really doesn't work thus not understanding how having to replace calipers and fixing brakes every so often is eco-friendly at all.

I bought some Toyota Rubber Grease, Made in Japan, under P/N: 08887-01206. This is the pink grease that I used to see in earlier versions of the 4th gen calipers but after upgrading to the 5th calipers, I noticed Toyota switched over to Silicon grease. The Toyota Rubber Grease also dries just like the Permatex stuff and eventually the rust invades the grease and turns it into a thick paste seizing the pistons or making it hard for them to retract. Toyota doesn't list a silicone grease like the one used in the 5th gen calipers. I'm guessing it's there to pass the typical warranty period and then you're on your own. You'd think they'd want to ensure you get the most out of your parts but have to remember, their a business, and the one way they get your hard earned money is through parts.

Eventually I came across a product made by 3M called 3M 08946 Clear Silicone Paste. You can find this on Amazon and the reviews will tell you it's good stuff. This is a clear silcone paste that is designed for high heat applications, difficult to wash out and doesn't degrade like the aforementioned products do. There's also AGS BK4 Brake Lubricant also found on Amazon, looks similar but I haven't had much experience with it but heard it's also a pretty good lubricant. I'm going to trust 3M more considering they have over 500+ reviews currently sitting at 5 stars.

When I did my 5th gen caliper upgrade, I added some of this silicone paste to the insides of the caliper piston bores, the pistons themselves and then the insides of the piston boots or underside if you want to call it that and after installing the piston boots, I applied some to the outside of the boots, the C-ring, and around the metal parts around the piston boots.

These are procedures that I found either in the Toyota Factory Service Manual as well reading up posts of others being able to solve these types of seizing issues. The key is to put a nice thin amount but not too much. Putting more silicone paste doesn't help but actually makes it worse. Remember tolerances are tight and this is a sealed system.

Also put some silicone paste around the bleeder valves' thread before threading them in as well the thread on the hard brake lines going into the back of the calipers. This will disperse water as well salty water from getting in easily.

I also painted the insides of my pistons to prevent any corrosion from starting inside there plus added some silicone paste to repel any water, etc. It all seems overkill but when you're dealing with salty roads in the winter, you'll definitely appreciate doing these simple steps.

Oh and one last thing, I ended up doing a complete flush of my brake system with MOTUL DOT 3 & 4 synthetic brake fluid. I've read too many posts about how typical DOT 3 brake fluids just don't do it justice and pull in moisture from the air (the brake fluid reservoir is vented) and it mixes in with the oil. But also how typical DOT 3 brake fluid doesn't withstand as much temperature as the synthetic DOT 3 & 4 stuff does. So far I've been on MOTUL brake fluid for about 2 years in one of my other vehicles and the brakes work perfectly. On my 4Runner, it's the same effect, no complaints at all.

Make sure that when you flush the brake fluid not to run out or you will be in for a long day of getting the air out of the system. There is a way to do it without the CONSULT 3/III, simply go on a gravel road and hit the brakes a few times then bleed each caliper a few times, add more fluid and hit the gravel road again. Eventually all the air will come out. The air is trapped in the ABS portion of the brake system. Normally bleeding doesn't get it out or at least it never worked for me.

So far it's been almost a year and I'm loving the 5th gen brake upgrade. In the spring I'll be doing my yearly brake refresh to see how they're holding up. Usually I sand the pads to get rid of any hard spots, clean the groove as well. Apply silicone to the boots and inside the pistons. Clean up the pins as well.

One of my next mods will be to get some stainless steel pins made. They're only used to prevent the pads from falling out, the pads rest on the calipers during braking so there's no worry about stainless steel being an issue.

Hope this helps you guys and puts an end to the BS we've been dealing with.

P.S., Iron calipers tend to experience these issues more, iron rusts fairly quickly and reacts more to water and salt especially. My other vehicle has aluminum factory calipers and to this day from 2012, I have never touched them. So that should shed some light as to what Toyota should've done in the 5th gen essentially but what can I say.

Below is a photo showing how rust creeps up inside the piston cylinder. Thank you to the kind member that posted this in another post.

Hey guys, just wanted to give back to the community and during my 5th gen brake conversion I did an immense amount of research and wanted this info to rest somewhere other than my brain. I hope this comes in handy to anyone who needs it.

Mods, if you want to make this page a sticky anywhere, please do so or advise how you'd like this to be retained for ease of access other than being buried in this thread.

If you guys see anything off, wrong, incorrect, spelling or grammatical errors, please advise or mods make the corrections as needed.

If anyone has any questions, please PM me or post it in the thread and I will help you out.

Enjoy! :surfer:


FRONT ROTOR COMPARISON:

SUMMARY/SYNOPSIS

4TH GEN FRONT ROTOR - There are two diameters depending on trim level:
- 319mm - Smallest 4th gen front rotor (SR5 Trim) at 28mm thick
- 338mm - Largest 4th gen front rotor (Sport or Limited) at 27.5mm thick

5TH GEN FRONT ROTOR - There is only one diameter regardless of trim level:
- 338mm - One size 5th gen front rotor (All Trims) at 31.8mm thick


TECHNICAL

4TH GEN FRONT ROTOR (For 13WG caliper (SR5 Trim))
Toyota Part #: 43512-35322
Outer Diameter: 319mm
Thickness: 28mm
Hub hole: 108mm
Bolt hole: 14.5mm
Weight: 18.48 lbs

4TH GEN FRONT ROTOR (For 13WH caliper (Sport and Limited Trims))
Toyota Part #: 43512-60151
Outer Diameter: 338mm
Thickness: 27.5mm
Hub hole: 108mm
Bolt hole: 14.5mm
Weight: 20.11 lbs

5TH GEN FRONT ROTOR (For 14WA front caliper (All Trims))
Toyota Part #: 43512-60191
Outer Diameter: 338mm
Thickness: 31.8mm
Hub hole: 108mm
Bolt hole: 14.4mm
Weight: 21.74lbs




FRONT CALIPER COMPARISON

SUMMARY/SYNOPSIS

4TH GEN FRONT CALIPER - There are two sizes depending on trim level
- 13WG Stamping - Smallest 4th gen front calipers (SR5 Trim) with 12mm mounting bolt, require 319mm 4th gen rotors
- 13WH Stamping - Largest 4th gen front calipers (Limited or Sport Trim) with 12mm mounting bolt, require 338mm 4th gen rotors
- Both(13WG & 13WH) have 45.5mm pistons
- Both(13WG & 13WH) use the same brake pads (4th and 5th gen brake pads are the same size regardless of trim but different part numbers due to a manufacturer change)
- Both 4th & 5th gen use the same brake line thread size (M10 x 1.0)
- If you have the 13WG (SR5) caliper, you will need to cut or swap out your brake dust shield for a larger one from either the 4th gen or 5th gen 4Runner
- If you have the 13WH (Sport/Limited) caliper, your brake dust shield is big enough to clear the 4th/5th gen 338mm rotors
- The 5th gen 4Runner front dust shield was redesigned so it has openings for air to enter must easier and recommended
- The brakes lines between the 4th and 5th gen are under different part numbers but are pretty much identical except for a few minor differences. Both work.


5TH GEN FRONT CALIPER - There is only one size regardless of trim level but there was a change in mounting bolt size around 2013
- 14WA Stamping - 5th gen front calipers (All trims) with 12mm mounting bolt, require 338mm 5th gen rotors, 2010 - 2013 year range
- 14WB Stamping- 5th gen front calipers (All trims) with 14mm mounting bolt, require 338mm 5th gen rotors, 2013 - 2018 year range, *This will not work for 4th gen*
- Both(14WA & 14WB) have 48mm pistons
- Both(14WA & 14WB) use the same brake pads (4th and 5th gen brake pads are the same size but different part numbers due to a manufacturer change)
- Both(14WA & 14WB) use the same banjo bolt & thread size for the brake hose
- You can use the 4th gen rotors although the 5th gen caliper pistons will over-extend which is not recommended or safe
- You cannot use the 5th gen rotors on 4th gen calipers as the 5th gen rotors are thicker and won't fit
- The 5th gen 4Runner front dust shield was redesigned so it has openings for air to enter must easier and recommended
- The brakes lines between the 4th and 5th gen are under different part numbers but are pretty much identical except for a few minor differences. Both work.


TECHNICAL

4TH GEN FRONT CALIPER (13WG stamping, For 319mm rotor (SR5 Trim)
Toyota Part# 47750-35160 - LH, 47730-35160 - RH
Mounting Bolt: 12mm
Piston Size: 45.5mm
Bleeder Size: M7 x 1.0
Inlet Size: M10 x 1.0
Manufacturer: Sumitomo

4TH GEN FRONT CALIPER (13WH stamping, For 338mm rotor (Limited or Sport Trim)
Toyota Part# 47750-60261 - LH, 47730-60261 - RH
Mounting Bolt: 12mm
Piston Size: 45.5mm
Bleeder Size: M7 x 1.0
Inlet Size: M10 x 1.0
Manufacturer: Sumitomo

5TH GEN FRONT CALIPER (14WA stamping, For 338mm rotor (All Trims)
Toyota Part #: 47750-60300 - LH, 47730-60300 - RH
Mounting Bolt: 12mm
Piston Size: 48mm
Bleeder Size: M7 x 1.0
Inlet Size: M10 x 1.0
Manufacturer: Sumitomo




FRONT BRAKE PAD COMPARISON

SUMMARY/SYNOPSIS

4TH GEN FRONT BRAKE PAD - There is only one pad regardless of trim level/rotor size
5TH GEN FRONT BRAKE PAD - There is only one pad regardless of trim level/rotor size

- 4th gen front brake pads are made by Sumitomo
* I find to prefer these simply because they still use metals in the pads such as copper and wear evently compared to the 5th gen pads made by Advics

- 5th gen front brake pads are made by Advics
* These tend create light and dark streaks on the rotor. I'm guessing the compounds in the Advics pads are not well mixed. These have less to no metals used per a discussion I had with a Toyota parts person. They stated that copper is being eliminated from pads to lessen the impact on the environment.


TECHNICAL

4TH GEN FRONT BRAKE PAD (For 13WG caliper stamping & 319mm rotor (SR5 Trim) or 13WH & 338mm rotor (Sport or Limited Trim)
Toyota Part# 04465-35290
OEM Manufacturer & model: Sumitomo PS558H


5TH GEN FRONT BRAKE PAD (For 14WA caliper stamping with 338mm rotors (All Trims)
Toyota Part # 04465-60320
OEM Manufacturer & model: Advics PV565H




FRONT BRAKE HARDWARE KITS

SUMMARY/SYNOPSIS

4TH GEN FRONT BRAKE HARDWARE KITS - There is only one style regardless of trim level
5TH GEN FRONT BRAKE HARDWARE KITS - There is only one style regardless of trim level

- 4th gen front brake pad anti-squeal shims come in a set of eight, some are stainless steel and some are stainless steel with a black coating
- 5th gen front brake pad anti-squeal shims come in a set of four, all stainless steel. The absence of the other four is on purpose and not required as found on 4th gen
- 5th gen anti-squeal shims are preferable
- 4th and 5th gen pistons are different. 5th gen is 48mm and 4th is 45.5mm. Length of pistons are the same between 4th and 5th gen
- Slider pins are different between 4th and 5th gen. 5th gen are longer to account for the wider caliper
- Cylinder kit is different in the 5th gen as the pistons are wider, pins are longer
- 4th and 5th gen fitting kit is the same (springs)
- 4th and 5th gen caliper bolts are the same
- 4th and 5th gen bleeder valves are the same

TECHNICAL

4TH GEN FRONT BRAKE PAD ANTI-SQUEAL SHIM KIT
Toyota Part# 04945-35120
Materials: Plastic coated and stainless steel shims and stainless steel pad wear indicators

4TH GEN FRONT BRAKE FITTING KIT (The stainless steel springs)
Toyota Part# 04947-35050
Materials: Stainless Steel

4TH GEN FRONT BRAKE CYLINDER KIT (All the rubber seals, caps, tubes)
Toyota Part# 04478-60050
Materials: Rubber

4TH GEN FRONT BRAKE PISTON
Toyota Part# 47731-35040
Size: 45.5mm

4TH GEN FRONT BRAKE CALIPER BOLT
Toyota Part# 90080-10213

4TH GEN FRONT BRAKE PAD PIN WITH HOLE (The pin that goes through the calipers and pads)
Toyota Part# 90240-06158

4TH GEN FRONT BRAKE CLIP for PIN with HOLE
Toyota Part# 47749-35040
Material: Stainless steel

4TH GEN FRONT BRAKE DUST SHIELDS (For 17-inch and up rims)
Toyota Part# 47781-60120 - Right, 47782-60120 - Left

4TH GEN FRONT BRAKE CALIPER BLEEDER
Toyota Part# 47547-35020


5TH GEN FRONT BRAKE PAD ANTI-SQUEAL SHIM KIT
Toyota Part# 04945-60090
Materials: Stainless steel shims and stainless steel pad wear indicators

5TH GEN FRONT BRAKE FITTING KIT (The stainless steel springs)
Toyota Part# 04947-35050
Materials: Stainless Steel

5TH GEN FRONT BRAKE CYLINDER KIT (All the rubber seals, caps, tubes)
Toyota Part# 04478-60080
Materials: Rubber

5TH GEN FRONT BRAKE PISTON
Toyota Part# 47731-60300
Size: 48mm

5TH GEN FRONT BRAKE CALIPER BOLT
Toyota Part# 90080-10213

5TH GEN FRONT BRAKE PAD PIN WITH HOLE (The pin that goes through the calipers and pads)
Toyota Part# 47735-60300

5TH GEN FRONT BRAKE CLIP for PIN with HOLE
Toyota Part# 47743-60280
Material: Stainless steel

5TH GEN FRONT BRAKE DUST SHIELDS
Toyota Part# 47781-60140 - Right, 47782-60140 - Left

5TH GEN FRONT BRAKE CALIPER BLEEDER
Toyota Part# 47547-35020





REAR ROTOR COMPARISON:

NOTE: Due to the difference in hub hole diameter size between the 4th and 5th gen rear rotors, use the 4th gen rear rotor in order for it to center properly. That is the only difference between the two generations. Using the 5th gen rotor will cause the rotor to shift causing it to grab the parking brake shoes causing a clicking sound. This will eventually ruin your parking brake. Some members have stated that the studs centre the rotor; that is incorrect in the sense that the studs only centre rims using the OEM lug nuts. The holes in the rear rotors for the studs have a bigger diameter than the studs and if the centre bore of the rotor is bigger than the hub on the vehicle, then the rotor essentially "floats". Once the brakes are applied the rotor is shifted/dragged out of place and basically wobbles hitting the parking brake. It will keep shifting in and out of centre. Some have tried to centre the rotor by hand and put on the wheels gently..unfortunately the amount of weight that is transferred to the rotors will cause them to shift. Torquing the lug nuts to sandwhich the rotors better will only cause warping of your rotors or worse, your studs will snap off. Don't risk your life over a few dollars. There's no gain with the 5th gen rear rotors as the only differene is the bigger diameter hub hole.

SUMMARY/SYNOPSIS

4TH GEN REAR ROTOR - There is only one size regardless of trim level
5TH GEN REAR ROTOR - There is only one size regardless of trim level
- 4th gen rear rotors have a 106.1mm hub hole
- 5th gen rear rotors have a 108mm hub hole and will not work on the 4th gen
- Otherwise 4th and 5th gen rear rotors are identical so therefore ONLY use the 4th gen rear rotor

4TH GEN FRONT ROTOR (For 14BD caliper (SR5, Sport and Limited Trims))
Toyota Part #: 42431-60201
Outer Diameter: 312mm
Thickness: 18mm
Hub hole: 106.1mm
Bolt hole: 14.5mm
Weight: 13.64 lbs

5TH GEN FRONT ROTOR (For 14BD rear caliper (All Trims))
*** Due to Hub hole diameter difference, rotor will not center properly, use 4th gen rotor instead***
Toyota Part #: 42431-60311
Outer Diameter: 323mm
Thickness: 18mm
Hub hole: 108mm ***This will cause the rotor to not center properly, use 4th gen rotor instead***
Bolt hole: 14.4mm
Weight: 14.08lbs




REAR CALIPER COMPARISON

SUMMARY/SYNOPSIS

4TH GEN REAR CALIPER - There is only one size regardless of trim level
5TH GEN REAR CALIPER - There is only one size regardless of trim level
- 4th gen rear caliper has a 45.5mm wide piston
- 5th gen rear caliper has a 48mm wide piston
- 4th and 5th gen caliper brackets are identical
- Mounting bolts for the caliper bracket are the same between 4th and 5th gen
- Slider pins are the same between 4th and 5th gen
- The brakes lines between the 4th and 5th gen are under different part numbers but are pretty much identical except for a few minor differences. Both work.

TECHNICAL

4TH GEN REAR CALIPER (14BD stamping on caliper bracket, F13 stamping on caliper, For 312mm rotor (SR5, Limited or Sport Trim)
Toyota Part# 47750-35170 - LH, 47730-35170 - RH
Mounting Bolt: 12mm
Piston Size: 45.5mm
Bleeder Size: M10 x 1.0
Inlet Size: M10 x 1.0
Manufacturer: Sumitomo

5TH GEN REAR CALIPER (14BD stamping on caliper bracket, F14 stamping on caliper, For 312.1mm rotor (All Trims)
Toyota Part #: 47750-34030 - LH, 47730-34030 - RH
Mounting Bolt: 12mm
Piston Size: 48mm
Bleeder Size: M10 x 1.0
Inlet Size: M10 x 1.0
Manufacturer: Sumitomo




REAR BRAKE PAD COMPARISON

SUMMARY/SYNOPSIS

4TH GEN REAR BRAKE PAD - There is only one pad regardless of trim level/rotor size
5TH GEN REAR BRAKE PAD - There is only one pad regardless of trim level/rotor size

- 4th gen rear brake pads are made by Sumitomo
*I never noticed any issues with these and the 5th gen pads are pretty much the same but made by Akebono

- 5th gen rear brake pads are made by Akebono aka AK
*I havent' seen any issues with using these so far. They wear nicely and the rotors stay one solid tone.

TECHNICAL

4TH GEN REAR BRAKE PAD (For 14BD caliper stamping & 312mm rotor (SR5, Sport and Limited Trims)
Toyota Part# 04466-60090
OEM Manufacturer & model: Sumitomo PS549


5TH GEN REAR BRAKE PAD (For 14BD caliper stamping & 312mm rotors (All Trims)
Toyota Part # 04466-60140
OEM Manufacturer & model: AK PA561




REAR BRAKE HARDWARE KITS

SUMMARY/SYNOPSIS

4TH GEN REAR BRAKE HARDWARE KITS - There is only one style regardless of trim level
5TH GEN REAR BRAKE HARDWARE KITS - There is only one style regardless of trim level

- 4th gen rear brake pad anti-squeal shims are steel coated with a black coating which breaks down
- 5th gen rear brake pad anti-squeal shims are stainless steel which last much longer and don't rust
- 4th and 5th gen rear brake hardware kits are interchangeable except the shims from the 5th gen are completely staintless steel and preferred
- 4th and 5th gen pistons are different. 5th gen is 48mm and 4th is 45.5mm. Length of pistons are the same between 4th and 5th gen
- Mounting bolts for the caliper bracket are the same between 4th and 5th gen
- Slider pins are the same between 4th and 5th gen
- Cylinder kit is different in the 5th gen as the pistons are wider although the slider pin rubber sleeves are identical between the 4th and 5th gen
- 4th and 5th gen hardware kit is the same
- 4th and 5th gen caliper brackets are the same
- 4th and 5th gen caliper bleeder valves are the same

TECHNICAL

4TH GEN REAR BRAKE PAD ANTI-SQUEAL SHIM KIT
Toyota Part# 04946-30100
Materials: Plastic coated steel shims and stainless steel pad wear indicators

4TH GEN REAR BRAKE FITTING KIT (The stainless steel pieces that clip into the caliper bracket for the brake pad to slide on)
Toyota Part# 04947-22050
Materials: Stainless Steel

4TH GEN REAR BRAKE CYLINDER KIT (All the rubber seals, caps, tubes)
Toyota Part# 04479-35060
Materials: Rubber

4TH GEN REAR BRAKE PISTON
Toyota Part# 47731-35070
Size: 45.5mm

4TH GEN REAR BRAKE CALIPER BRACKET BOLT
Toyota Part# 90101-12167

4TH GEN REAR BRAKE CALIPER BLEEDER VALVE
Toyota Part# 47547-12030


5TH GEN REAR BRAKE PAD ANTI-SQUEAL SHIM KIT
Toyota Part# 04946-60140
Materials: Stainless steel shims and stainless steel pad wear indicators

5TH GEN REAR BRAKE FITTING KIT (The stainless steel pieces that clip into the caliper bracket for the brake pad to slide on)
Toyota Part# 04947-22050
Materials: Stainless Steel

5TH GEN REAR BRAKE CYLINDER KIT (All the rubber seals, caps, tubes)
Toyota Part# 04479-60030
Materials: Rubber

5TH GEN REAR BRAKE PISTON
Toyota Part# 47731-60020
Size: 48mm

5TH GEN REAR BRAKE CALIPER BRACKET BOLT
Toyota Part# 90101-12167

4TH GEN REAR BRAKE CALIPER BLEEDER VALVE
Toyota Part# 47547-12030

SCY7H3 said:

Hey guys, just wanted to give back to the community and during my 5th gen brake conversion I did an immense amount of research and wanted this info to rest somewhere other than my brain. I hope this comes in handy to anyone who needs it.

Mods, if you want to make this page a sticky anywhere, please do so or advise how you'd like this to be retained for ease of access other than being buried in this thread.

If you guys see anything off, wrong, incorrect, spelling or grammatical errors, please advise or mods make the corrections as needed.

If anyone has any questions, please PM me or post it in the thread and I will help you out.

Enjoy! :surfer:.....

-14AB Stamping- 5th gen front calipers (All trims) with 14mm mounting bolt, require 338mm 5th gen rotors, 2013 - 2018 year range, *This will not work for 4th gen*

Click to expand...

Great post with a lot of much needed info all in one place, Thanks for posting!!! :dancin:

Just a question, is that a typo on the caliper stamping, where you have 14AB Stamping, shouldn't that be...14WB... instead?

AuSeeker said:

Great post with a lot on much needed info all in one place, Thanks for posting!!! :dancin:

Just a question, is that a typo on the caliper stamping, where you have 14AB Stamping, shouldn't that be...14WB... instead?

Click to expand...

You are very correct sir! 14WB is the correct stamping. Corrected in my original post! Much appreciated!

SCY7H3 said:

Hey guys, just wanted to give back to the community and during my 5th gen brake conversion I did an immense amount of research and wanted this info to rest somewhere other than my brain. I hope this comes in handy to anyone who needs it.

Mods, if you want to make this page a sticky anywhere, please do so or advise how you'd like this to be retained for ease of access other than being buried in this thread.

Click to expand...

Thanks so much for this!

Excellent work!!

Should be a sticky or its own thread!

Folks that have replaced their Centric calipers, are those the "Posi Quiet" versions that come with their Zinc Dichromate finish (or O.E. colored powder coating), that are failing quick?

POSIQUIET CALIPERS

I believe their semi-loaded line has a different finish...

:nerd:

L8Shift said:

Folks that have replaced their Centric calipers, are those the "Posi Quiet" versions that come with their Zinc Dichromate finish (or O.E. colored powder coating), that are failing quick?

POSIQUIET CALIPERS

I believe their semi-loaded line has a different finish...

:nerd:

Click to expand...

When I did mine (July 2018), Centric did not have any coated caliper for this application. At least RockAuto didn't have any listed.

For those that care, Rockauto is now showing a NEW front caliper by Raybestos but only for 13WG castings. $90 each with no core, certainly seems better than a reman unit that lasts a couple of years at best. I'm getting some front drag (based on temp measurements, no vibration) so ordered them to see if they hold up better than the Centrics on it now.

chayos00 said:

Wow! Those are sweet! Too bad they don't make something for the rears too!

Wilwood Disc Brakes - 2008 Toyota 4Runner All - Front Brake Kit No.: 140-14577-DR

Click to expand...

I found these guys after the fact. If I were to do it over again I'd go with SOS Performance. They have the option to do the rears as well.

Toyota 4Runner & FJ CRUISER | SOS Performance, Tundra Racing, Stoptech Big Brake Kit Rear Disc

I understand that 5th gen 14WB calipers ( front ones) has 14mm mount bolt hole, compare to 14WA caliper with 12mm hole and that it is not a direct swap.
But anyway, I have bought 2018 5th gen 4Runner with 9.000 miles on it 14WB calipers on eBay for $207 each and installed them on my 2007 4Runner.
Calipers came with all hardware and pads and looked like new.
I drilled holes in steering knuckles with 12.2 mm drill bit and then cut new threads using 14mm x 1.5 taps. Now I can use any kind of calipers because I can simply drill bigger holes on either 13WG/H or 14WA.
I installed OEM rotors that I've bought on eBay for $153 set. (I've done buying all that Centric and other aftermarket crap).
All in all, together with rear 5th gen brakes ( used with 30.000 mile on them $70.99 each) and 04466-AZ103 pads I am pretty happy and relaxing now. I did not even expect that result would be so good.
And I also had to buy special mounting bolts. I bought them in Crown Toyota dealership. Part number is 90105-A0336. Metric 14X1.5 with 19 mm head and 35mm body ( thread) length. About $10 for set of 4.
Thank you very much guys ( and especially 084RUNNAH ) for wonderful amount of information that allowed me to do that upgrade!

Here to report my 5th gen Centric calipers from Rockauto are seized up after ~2 years.

For anyone doing this, I highly suggest going with a local store (Advance/Auto Zone/Napa) and buying replacements with a lifetime warranty...even if you go back to the 4th gen calipers.

I just picked up 2 front 5th gen calipers from Auto Zone for ~$150 after cores.

Thanks for posting. I kind of suspected this. Sad really. I did local stores with lifetime for that reason. Good to know.

vastano said:

Here to report my 5th gen Centric calipers from Rockauto are seized up after ~2 years.

For anyone doing this, I highly suggest going with a local store (Advance/Auto Zone/Napa) and buying replacements with a lifetime warranty...even if you go back to the 4th gen calipers.

I just picked up 2 front 5th gen calipers from Auto Zone for ~$150 after cores.

Click to expand...

My thoughts exactly. I had my LF 5th gen seize up after two yrs, with less than 20k miles on it...surely my RF is on the way out. That's what you get for remans though.

My rockauto 5th gen calipers also had issues.

I live in Eastern Washington State. Chemicals used on the roads in the winter months are really hard on the underside of the rig(2009 SR5). I try to keep the underside as clean as I can by using a carwash but lots of rust anyways. I ride motorcycles as long as the weather will allow so my 4Runner only has about 65,000 miles on it. I've gone through three sets of calipers.

From what I've read here, the 5th gen parts are a little better but still the problems remain. Maybe next time around I will spend the big bucks and go with an aftermarket upgrade(SOS, or RR Racing). Buying new calipers and other parts every 20,000 miles is getting old. Seems like there has got to be something out there that will last longer.

p

Nice job! I will try my later.

SCY7H3 said:

...

4TH GEN FRONT ROTOR (For 14BD caliper (SR5, Sport and Limited Trims))
Toyota Part #: 42431-60201
Outer Diameter: 312mm
Thickness: 18mm
Hub hole: 106.1mm
Bolt hole: 14.5mm
Weight: 13.64 lbs

...

Click to expand...

Does having the 14BD in the rear of my 4th gen mean I have 319mm calipers in the back?

Ive looked underneath my Limited and know I have the 14BD rear calipers, but havent looked at the front. From what I could gather from other research, the front will either be 13(WH/WL/WG) with the 13WH being the larger 339mm and the other two being 319mm. I am confused by the For 14BD because I am assuming that it means 4th gens with rear 14BD calipers will have front that also have 319mm. Though, once I am off work, I can just look at them myself and clear up all the confusion I am bringing on myself