I'm going to swap in a set of 2021 LED's into my 2020 SR5 next week. I know I need to swap the connector heads, but I want to leave my originals intact as a backup set or to sell. Does anyone know where I can buy a set of just the headlight connector heads? Looking at the Toyota parts schematic, it doesn't appear to be a separate part but rather part of the headlight module.

You are right that the parts diagram will not show the connector separately.

However, most Toyota connectors are readily available for repair purposes. They usually come in two parts: the connector housing, and the wire pins w/wires to insert into the housing. The challenge is to find the part numbers for the connector housing and the repair pins with wires. Perhaps your dealer's parts department can help you find the part numbers.

Another approach would be to get a used head light assembly from Ebay or a junk yard.

There are two ways to go about finding the part numbers for the connector housing and the repair wires w/pins, but both require access to the TIS (Toyota Information system). You can get a subscription to TIS, or see if your dealer will access it for you.

1. Every Toyota connector I have seen has the part number molded into the housing somewhere. It will be very, very small. With that part number, you can look up the housing on the "Wiring Harness Repair Manual" for your vehicle in TIS. The wiring harness repair manual will also show what repair wires are needed for that housing, and how to insert them into the housing. Special tools may be required to insert or remove a wire pin from the housing.

2. TIS will have the wiring diagram for your vehicle. With the wiring diagram, it will show the details on every wiring connection in the vehicle. Those details will include a "connector reference", wire colors, pin numbers, etc. The connector reference number is cross referenced in the wiring harness repair manual to the connector housing part number.

I have access to the wring harness repair manual for the RAV4, but not the 4Runner, so I can't help you there.

Good luck..

PS: Be prepared for sticker shock!
The price for connector housing is not too bad, just a few dollars. But the price for repair wires will be $10 or more each!

Any luck? I'm in the same boat.

Cheers!

As stated ,they are pricey. The connectors for the 21 PRO Led headlights might be different . Like my 22 has a 3 pin connector for the Bi-leds
You can try these guys..... Products – FindPigtails.com

Thanks for all the help. So far I haven't found the connector head, but I'll hit my dealership parts desk in the next week or two and chat with them about it.

Your best bet would probably be to purchase some used/damaged headlight housings on eBay or Craigslist just for the pigtails. I can't imagine they would be more than $40 a side.

If you intend to keep your original headlights as backups then why to through the trouble? There's no wire cutting to make the connector swap so it can easily be reversed should you need to reinstall the originals.

I was thinking about selling the halogens to recoup part of the cost of the upgrade, but honestly I think it's just a little OCD on my part to have functional backups laying around as well.

90980-11255 is what I found, and ordered.