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HARNESSES AT OFF ROAD SOLUTIONS

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5VZ-FE Swap Harnesses (3.4L)
22R-E EFI Swap Harnesses (2.4L)
3RZ-FE Engine Swap Harnesses (2.7L)
Monster Stand Alone Wiring Harnesses
E-Locker Wiring Harnesses

5VZ-FE Swap Harness

3.4L Conversion Wiring Harness - Truck/4Runner
Takes all the wiring guess work out of a 3.4 liter conversion. This harness allows you to plug a 3.4 liter engine and computer straight into your '85 - '95 22R-E or 3.0L Toyota Truck or 4Runnner. Core charges may apply on some models.

Manual Transmission Wiring Harness - ORS-EC021 - $695.00

Auto Transmission Wiring Harness - ORS-EC023 - $795.00

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.
1985-88 22RE Core Connector Needed

3.4L Conversion Standalone Wiring Harness
This is a stand alone harness that takes care of all the wiring when installing a Toyota 3.4L V6 into any make or model. Great for carburated trucks, rock buggies, other makes. Core charges may apply on some models.
Manual Transmission Standalone Wiring Harness - ORS-EC024 - $775.00
Auto Transmission Standalone Wiring Harness - ORS-EC029 - $850.00

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

22R-E Swap Harness

ORS 22R to EFI Conversion Harness
Toyota built a legend when they built the 22R. They really got it right when they built the 22R-E. While neither version is very fast, Toyota sure built a reliable fuel injection system. The ORS EFI Conversion Harness is designed to help the rest of the world achieve the 22R-E status. In this circuit there is the ECU (computer), the engine harness, and the body (dash main) harness. Unfortunately for those who want to convert, Toyota "tangled" about 40% of the EFI circuit into the body harness. As one may guess, this 40% is a necessary part of the EFI circuit. Our harness is designed to replace the body harness section of the circuit. This makes for an easy installation into an older Toyota, rock buggy, or whatever ya got.

1989-95 P/U & 1990-95 4Runner Donor Fuel Injection - ORS-EC001 - $470.00

*There is a core charge of $50 on ORS-EC002 for the donor fuel injection body harness/connectors.

There are cores needed when performaing this swap to build your harness: List of Cores Needed

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

3RZ Swap Harness

After years of perfecting our 3.4L swap we are proud to announce our new 3RZ wiring harnesses. Our harness will allow you to mate a 3RZ 2.7L from a Tacoma, 4Runner or T100 to your older Toyota or buggy. These are perfect for the person looking to complete this swap but not wanting to deal with the headache of "sorting out" the wiring.

As with most Toyota EFI systems, about 45% of the engine electrical circuit was placed in the main or "body" harness of anything with a 3RZ-FE engine. Using this main harness in a swap can be very difficult, frustrating and messy. The ORS harness is designed to replace this portion of the engine circuit in 3RZ swap.

This harness connects directly to the 3RZ-FE engine computer and engine harness. The ORS-EC101 also connects directly to your vehicle, making the wiring very simple. The ORS-EC100 is designed for something without an engine wiring circuit already in place, such as a rock buggy or carburated truck. Wire leads from this harness are connected to +, ground, and start signals, still a simple install.

*At this time we are only offering the harnesses in a manual transmission application.

3RZ Conversion Wiring Harness Manual Transmission- ORS-EC101 $600.00
Takes all the wiring guess work out of a 3RZ conversion. This harness allows you to plug a 3RZ engine and computer straight into your '85 - '95 EFI Toyota truck.

*There may be a core charge on some models, please call for more information.
1985-88 22RE Core Connector Needed

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

3RZ 2.7L Conversion Standalone Wiring Harness - ORS-EC100 $700.00
This is a stand alone harness that takes care of all the wiring when installing a Toyota 3RZ into any make or model.

*There may be a core charge on some models, please call for more information.

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

Monster Harness

Monster Standalone Wiring Harness $949.95 Call To Order
Ever beat your head against a wall on a custom build with hard to read wiring diagrams and a dizzying rat's nest of wires? We took a great leap with our conversion harnesses being able to plug into an existing, basic electrical system, but a problem still lied in the way for our customers building rock buggies, race trucks, custom builds, or a vehicle with faulty older wiring needing to be completely replaced. Essentially this is our conversion harness, plus the rest of the entire vehicle's (save the engine harness) wiring. These harnesses are for the same engine applications: 22R-E, 3RZ-FE, and 5VZ-FE. To dispel confusion, this harness DOES NOT ELIMINATE the need for an ECU and the engine/injector harness; they are still needed for your engine to, well, work.

Our wiring harnesses are a testament to our professional standards for quality workmanship. Our harnesses have found their way into rigs such as WEROCK world champion Brian Ellinger’s F-Toy and other WEROCK and F-Toy rigs. See Brian's harness (pictured). This harness has all the bells and whistles, running many more circuits than the base harness we sell, so if it looks big, that is because it is.

All connections are glued heat shrunk for corrosion resistance and a long dependable life. Not only that, but all the connections come with easy to read labels and instructions as well, so you aren't guessing what goes where and spending hours scratching your head. We don't stop there either; all the wires are fully loomed and taped for protection as though you are getting this custom harness from Toyota themselves. Finally to top it all off, we don't sacrifice quality and dependability by using only a few relays. We use enough relays to safely carry all the circuits needed in each specified application. What this translates to is more wheeling and peace of mind, knowing that you will never have to think of your wiring harness again.

The base harness comes with the engine conversion portion, ignition/accessory/start switches and relays, main fusible link, charging system circuit, and fuse panels that can be easily added to. Also, all switches are rocker switches (like ARB locking differential's) that not only function well but also provide a professional, "cool" look. The customer simply connects this harness to the battery's positive terminal and connects to ground. The only wiring left for the customer is the battery cables.

These kits can be custom tailored for length and are completely customizable, so if you want a pimp version like Brian, you can get it. Upon request additional circuits can be added for an additional charge. These include: Headlights, Taillights/Turn signals, Brake light, Auxiliary lights, Horn, Radio, Gauges, Etc. Let us at ORS get you and your rig back where they belong: back on the road and back on the trail!

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

E-Locker Harnesses

ORS E-Locker Harness - ORS-EL001 $145.00
If you are installing a Toyota electric-locking differential in your own axle, ORS has the wiring solution for you. The actuator on the Toyota E-locker uses a switched motor which prevents simple wiring. We are proud to introduce our new E-Locker Harness. Our harness is complete with the relays needed to make the differential operational at the push of a button. Our harness plugs directly into your E-Locker, preventing any custom splicing at the differential. Installation is a breeze and the harness is custom tailored to your wheelbase, selected axle, and battery location.

Important: When ordering online please specify the following in the Notes section: year and model of truck, front or rear e-locker, and whether your battery is located on the front driver side or front passenger side of the engine bay. Please call or email for custom applications.

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

Dual ORS E-Locker Harness - ORS-EL002 $255.00
If you are installing a Toyota electric-locking differential in your front and rear axle, ORS has the wiring solution for you. The actuator on the Toyota E-locker uses a switched motor which prevents simple wiring. We are proud to introduce our new Dual E-Locker Harness. Our harness is complete with the relays needed to make the differential operational at the push of a button, and runs both the front and rear E-Locker. Our harness plugs directly into your E-Lockers, preventing any custom splicing at the differential. Installation is a breeze and the harness is custom tailored to your wheelbase, selected axles, and battery location.

Important: When ordering online please specify the following in the Notes section: year and model of truck, front locker year and model, rear locker year and model, and whether your battery is located on the front driver side or front passenger side of the engine bay. We also need to know if the lockers are high or low pinion. Please call or email for custom applications.

*Orders may take up to 4 weeks to ship during our busy seasons due to the custom nature of the harnesses. All harnesses are built to order and we build them in the order that they were received.

Return Policy (applies to all purchases): 15% restocking fee on all returns. No returns after 30 days. No returns on electrical parts or special orders.
Shipping Note: Shipping prices are valid for the United States only. Orders shipping elsewhere will incur extra shipping charges not included in the online total.
Parts pricing subject to change without notice.