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Home » Products » Wiring Harnesses » 1GR-FE (4.0L) Conversion Wiring Harnesses

1GR-FE (4.0L) Conversion Wiring Harnesses

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1GR-FE Knock Sensor Sub-Harness
$38.00 Add to cart
ORS 1GR-FE Engine Conversion Wiring Harness
$2,395.00 – $3,264.00 Select options

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Off Road Solutions

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(970) 765-2290
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Testimonials

You guys are awesome! I read posts about how great y’alls customer service and tech support is, I always agree with themRead more “”

Aaron

Great local shop, good work. I would recommend this company toRead more “”

John from Colorado

I got the harness last week and I was impressed. The detail and connections are well done. You have earned my loyalty as I know first hand about your attention to detail and workmanship! Thanks forRead more “”

Kevin from Colorado

First off, thank you all for continuing to be an amazing company to work with. Your customer service is unmatched. I really appreciate your product support, and the products you produce. So thank youRead more “”

Aiden from VA

Wow, you guys really cover everything! That’s great, thanksRead more “”

Scott from BC Canada

I would highly recommend Off Road Solutions to anyone. They do extremely high quality work, with a very high level of technicalRead more “”

Joe from Colorado

I bought my harness several years ago after watching so many guys trying to save a penny and doing it themselves. In the end they were all begging for help. I quickly realized that path wasn’t for me. I found a donor T100 with 100k miles and bought the harness, exhaust pipe, and hood scoop

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I bought my harness several years ago after watching so many guys trying to save a penny and doing it themselves. In the end they were all begging for help. I quickly realized that path wasn’t for me. I found a donor T100 with 100k miles and bought the harness, exhaust pipe, and hood scoop from ORS. I plugged it up and it started right up! Its a 2nd gen 4RUNNER 4X4 and has been my daily driver for 8 years or better. Google the 5vze and you will see what kind of incredible engine its. WELL worth the small investment for a harness to have a reliable Toyota 4×4. Thank you!

Read more “”

Tom from Louisiana

Very easy swap, WAYY too much power in a little 2wd truck!!! I think I am going to put the blower on a 4wd truck the next time I do one of these swaps. Thanks for all of yourRead more “”

Jonathan

I wanted to thank you for taking the time to look over my ewd’s for the A/C. It was a big load off my mind to know that I was on the right track. Otherwise, I would have gone nuts trying to figure out where I went wrong. I can understand why you wouldn’t want to

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I wanted to thank you for taking the time to look over my ewd’s for the A/C. It was a big load off my mind to know that I was on the right track. Otherwise, I would have gone nuts trying to figure out where I went wrong. I can understand why you wouldn’t want to help, and appreciate that much more that you did.
I can’t even imagine how difficult this whole swap would have been without stumbling across your website. Thank you for the great service that you’ve provided.

Read more “”

John

You will always be known as a leader in this community and for the quality of products and services you have provided – truly top of theRead more “”

Jason from Colorado

You guys have been so helpful and nothing but reliable. Awesome customerRead more “”

Charles from California

Guys, Seriously with all of My being, Thank You a Million Times Over, You guys have helped My Frankenstein Dream come to life through all of yourRead more “”

Desmond from New Jersey

You all are the absolute best company to work with!Read more “”

Donnie from Idaho

Just wanted to say thanks for an absolutely amazing easy to installRead more “”

Blathan from Kansas

Hi just letting you guys know I got the harness in the mail and this thing looks absolutely incredible, the craftsman ship on this is top notch. ThankRead more “”

Customer from Oregon

I purchased your Full 3.4 conversion kit, put 10,000 miles on it and just got my truck certified here in California the first trip to the referee. No CEL’s or any other issues.Read more “”

Nathan from California

That’s great, thanks for being quick on the responses and all around 10/10 customer service! I’ll be sure to go through you guys when I need more specialtyRead more “”

Aaron from Montana

I just wanted to let you know that I finished my install of my 3.4, and it turned out great. We entered our first race, 500 miles in Reno, and the truck was performing awesome. Until we nose dived the truck off a 6 foot razor back and took out our rear spring bushings. The

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I just wanted to let you know that I finished my install of my 3.4, and it turned out great. We entered our first race, 500 miles in Reno, and the truck was performing awesome. Until we nose dived the truck off a 6 foot razor back and took out our rear spring bushings. The engine was steady strong well built. Just wanted to say thanks for all your info and making a awesome product. Awesome products.

Read more “”

David from Oregon

I want to say thanks to you and everybody else that works there for your help with the 3.4L swap. I love it so far. Thanks again for your help and I hope to see you guys out on someRead more “”

Kevin from Colorado

I just wanted to let y’all know I received my harness yesterday… Everything looks GREAT! I really appreciate the detailed description on each piece of green tape. Thanks aRead more “”

Wes from Mississippi

I’ve run an ORS harness in my FToy for almost 10 years now without ever having an issue with wiring…greatRead more “”

Jim from Tennessee

Most people probably don’t give you credit but between your parts and that article you have done a great service to the off road and swap communities. And I highly appreciate it. You did a greatRead more “”

Jason

Hey Mike, I just thought I’d thank you for all you’ve done for me these past few months or so…I finally got my runner up and running, and everything is running real good. The speed I got from this new engine is incredible. THANKS A LOT! Well, I’ll be looking forward to future business with

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Hey Mike, I just thought I’d thank you for all you’ve done for me these past few months or so…I finally got my runner up and running, and everything is running real good. The speed I got from this new engine is incredible.
THANKS A LOT! Well, I’ll be looking forward to future business with you!

Read more “”

Rodd from Hawaii

Just wanted to say THANK YOU!!!! You guys put together one of the best harnesses I have seen in a long time!! The instructions were so good I think my sister could have done this swap!! The money spent was well worth it!! I had the harness in, wired and the engine fired in about

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Just wanted to say THANK YOU!!!! You guys put together one of the best harnesses I have seen in a long time!! The instructions were so good I think my sister could have done this swap!! The money spent was well worth it!! I had the harness in, wired and the engine fired in about 45 minutes. You saved me at least 20 hours plus the headache of trying to find those connectors.

Read more “”

Jonathan from California

I could see that you and yours were a different breed. Your website alludes to the Father being your focus. That made me really like you guys. Finally someone with a proper ethic behind theirRead more “”

Mike from Colorado

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