ORS E-Locker Wiring Harness

(4 customer reviews)



This wire harness allows full control of an OEM Toyota Electric Differential Locker (E-locker). This wire harness is normally used for one of the following purposes:

  • An axle/differential with a Toyota Elocker is added to a non-locked vehicle and the Toyota E-locker control circuit is not already in place to control the locker
  • To gain full manual-control of the E-locker differential on a vehicle originally equipped with an E-locker differential

Either way, the ORS E-Locker Wiring Harness is a great solution.

The actuator on the Toyota E-locker differential uses a motor with limit switches, which is monitored and controlled by a computer, based on the switch position and other factors. Simple ON/OFF power control is not a safe control method for the differential or the operator.

Using a set of relays, our harness will simply operate the E-Locker by the push of a switch, while operating the differential motor via the OEM limit switches. This method is safe for the motor/differential. By using relays in place of a computer, our harness eliminates the parameters that the Elocker computer uses, such as speed or 4WD position, giving more control of the E-locker differential to the driver. Please see advisory below.

Simpler and more inexpensive wiring solutions are offered online, and on the market, based on simple ON/OFF power control to the motor. We advise avoiding this method as it can lead to partial engagement/disengagement or motor over-heating. This can be dangerous for the differential and can make vehicle handling/operation dangerous. The ORS E-Locker Wire Harness offers superior design compared to the ON/OFF method.

The ORS E-Locker Harness is offered in a single or dual-locker arrangement (for applications with an E-Locker in both front and rear axles). The Dual-Locker arrangement is actually more expensive than two separate single-locker harnesses. The relays used in the single-locker harness become excessive in size, and difficult to mount under the dash, when doubled in a dual-locker harness. For this reason, the dual-locker harness is built with a small under-hood fuse box, creating a different layout and more complex design/construction. This means a simpler/cleaner install but higher cost when compared to two single-locker wire harnesses.

The ORS E-Locker harness plugs directly into your E-Locker differential(s), preventing the need for any additional wiring connections. This harness is completely pre-wired, comes standard with a Carling Rocker Switch and is covered with expanded sleeve and corrugated loom for protection. Installation is very simple and the harness is custom-tailored to your model, wheelbase, selected axle(s), and battery location.

The following options can be added to this harness:

  • An indicator of the differential’s lock position, built into the switch, a separate LED indicator, or in some cases wired to the original Lock indicator light in the OEM instrument cluster
  • The use of an OEM Toyota Differential Locking switch – the OEM switch itself can be included or not included.

Note: the OEM switch option offered on a Dual E-Locker harness is an 80-series LandCruiser switch. This switch does not provide front-only locker operation: rear-only or rear+front operation is built into this switch. To use two independent OEM-locker switches, two “Rear Diff Lock” OEM switches would be needed; contact ORS for this option. For fully-independent operation on a Dual-E-Locker harness we recommend the standard rocker-switch option.

The ORS E-Locker wire harness is NOT compatible with the 2016 and newer Tacoma E-Locker differential.

This product is built per order, please allow 2-3 weeks for order completion.

Notice when ordering: Please include the following information in the “Order Notes” box when placing your order:

From Elocker Donor Vehicle:

  • Model
  • Model Year
  • Indicate front or rear locker (when applicable)

From Your Vehicle:

  • Model
  • Model Year
  • If Model is a pickup truck – cab size (standard, extra, double, access), bed length
  • Indicate locker location, front or rear
  • Battery location (if in engine bay, indicate R or L side)
  • Indicate any major wheelbase changes (over 2”)
  • Indicate any suspension lift over 2”
  • If using indicator circuit – in switch, separate indicator lamp, or in-instrument cluster

Please call or email for custom applications.

Advisory: In its original application, Toyota uses a computer to control the operation of the E-Locker. In this system, various inputs are used to control differential operation, such as 4WD mode and vehicle speed. This computer-controlled system is designed for operator safety and differential reliability. When using the ORS E-Locker Wiring Harness, the operator is given full control of the locker operation. This makes the driver responsible for judging the appropriate timing of E-Locker differential operation.

4 reviews for ORS E-Locker Wiring Harness

  1. Tyler (verified owner)

    I had a terrible time with off road solutions E-locker wiring harness; to start with they forgot my order until I called 8 weeks after I ordered it. It finely showed up and it was pretty easy to install, until it came to splicing a few wires into the hundreds of wires under the dash. So I had my trusted shop finish it for me, and they couldn’t get it to work. So I emailed ORS and they ignored me completely. I’m very disappointed in their product but mostly with their ****** customer service. I will never recommend them to anyone.

    • ORS

      We appreciate your input. Although we try our best to offer superior customer service, we sometimes fail in those efforts. It seems we failed to do that with both your product delivery and your email for help. We are very sorry that you had this experience with our company and understand your frustration. (Customer was contacted privately to resolve the situation.)

  2. Derek Young (verified owner)

    I’ve had my ORS e-locker wiring harness installed in my 2007 4Runner for probably 3 years now. I had a need for the harness when I installed a Toyota e-locker from a Tacoma in to the 4Runner. I haven’t any issues at all. Great product!

  3. Will (verified owner)

    Great product works as it should and great quality!! Thanks Guys!!

  4. Jake Steve (verified owner)

    Very impressed with this harness, and ORS!
    Initial build quality is simply in a different league than every other elocker harness on the market. There is no comparison. I purchased a different one initially, (one of the better known ones,) and returned it as I didn’t have faith in how any of it was sealed.
    5 stars for harness quality.

    Install was simple, and instructions were clear. Unfortunately I had a pair of bad relays in my harness, (this happens – anyone who has done enough aftermarket automotive work has experienced this. If you haven’t, you’re still in your infancy.) What matters to me more was the customer service. I had 2 days before I left for the biggest annual wheeling trip that I plan many months in advance with a nice group of buddies. Harness installed, and the hot fuse kept popping.

    I called up ORS, and Derek picked up. He made it a particularly personal point to solve my problem, and overnighted a pair of relays to me, even though I could have found them locally. When UPS delayed shipment, guess who was in my inbox letting me know he was ALSO tracking the relays? Derek. They still showed up on time, and the harness worked flawlessly. 6 star customer service.

    I’d love to see a few add-a-fuses included, (I used 2 on my install,) with some application specific instructions, or recommended options for tap locations. That would bring a 5 star product to ‘simply the way’.

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