Many of us are switching out our stock fuel tank for an F150 tank located in the factory spare tire area (you can read about all of that here). There are some major advantages in doing this swap: increased ground clearance, better weight distribution, and freeing up space in-front of the axle to change the rear suspension link geometry. Though one of the major disadvantages has been the in-ability to integrate the sending unit to allow the factory fuel gauge to work. Some people have done it ( @midcoma and @2TH4IST are the only ones I know of), but it has required extensive work which includes major cutting of the tank and sheet metal welding.

In an effort to find a better solution, I have developed this kit. This kits integrates the OEM Toyota sending unit onto the F150 fuel pump assembly in order to retain the factory fuel gauge. I have done my best to make this kit as easy of a swap as possible using only basic tools.





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Kit Price: $100 shipped

Kit Contents:
1 x Toyota Sending Unit Conversion Bracket
4 x In-tank Butt Connectors (only 3 are needed, 1 extra has been provided)
8 x Heat Shrink Butt Connectors (only 7 are needed, 1 extra has been provided)
1 x Packet of Silicone Grease
1 x Bulkhead Connector
1 x One-Way Retainer Clip
1 x In-tank Grounding Wire
1 x In-tank Wiring Harness (with pre-stripped ends)
1 x Outside-tank Wiring Harness (with pre-stripped ends)




Parts you should already have:
1 x 1990-1997 F150 Rear Fuel Tank Assembly (Spectra F1G1FA or equivalent)
1 x Toyota Sending Unit P/N 83320-35590 or P/N 83320-35620


>> Installation Instructions <<
>> Wiring Diagram <<

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Notes:

• This kit is made for 1999-2002 4Runners, this kit will NOT work on 1996-1998 4Runners. Starting in 1999, Toyota switched to a digital odometer and the way the fuel sending unit works is by a digital reference from the dash, and the sending unit geometry and electronics completely changed. The bracket and wiring harnesses in this kit have been designed to only work with these 1999-2002 Toyota sending units. If you have a 1996-1998 4Runner and want your factory fuel gauge to work after swapping fuel tanks, I believe you can get your gauge to work (minus the low fuel light) by using a fuel calibration device (see Classic Instruments Fuel Link, MeterMatch Fuel Gauge Interface Module, or similar device).
• The bracket only works with the Toyota Sending Unit P/N 83320-35590 (1999-2001 model years) or P/N 83320-35620 (2002 model year). Sometime in late 2000, Toyota had a service bulletin TSB EL010–00, which replaced the (sometimes defective) sending unit P/N 83320-35530 with P/N 83320-35590. The geometry changed between these two versions, the bracket in this kit is designed to fit the later version. So if you have a model year 2002, your OEM unit should work. If you have a 1999-2001 model year and had your vehicle serviced from TSB EL010–00, then your sending unit will work. Some 2001 model years will have the old unit and some will have the new unit, it depends on the production date. If you have a 1999-2000 model year and have not had your vehicle serviced from TSB EL010–00, you need to purchase the new sending unit (P/N 83320-35590).