(480) 233-7307  

Felix N. Castro
Customer Review
I searched for years to find a good diesel mechanic. I thank the Lord for sending Monster Diesel Repair to Gilbert. Quality service from soup to nuts!!! My ‘04 Superduty is still going strong. Thank you Mike and your team.
John Truchanowicz
Customer Review
Mike replaced my 2003 6.0 injectors, FICM, harness, etc. It was worth every penny. I have towed several pieces of heavy equipment and horse trailer loaded, in my move to the mountains of Young AZ. My truck runs like brand new. I have taken my truck to Mike since it was new. Best Diesel mechanic period. You may wait for appt, but he gets it done when he says.
Matt Gable
Customer Review
Mike was awesome! Had some air flow issues with my 2017 F-350 and he went above and beyond to get it handled. I will definitely be back for any of my service needs!
Jason, Customer Review
I took my 2000 F250 to have a turbo problem checked out, They gave me several options for the fix. Cheaper to not so cheap. I went with their recommendation and put a new turbo on. It was fixed and ready when they said it would be and at the price they said. They answered all my questions and concerns. They will definitely have a return customer and will recommend them to friends.
two racecars on a track

JASPER Engines and Transmissions is pleased to announce that the JASPER 4-Speed Transmission is being used by 28 team/driver combinations in the 2022 NASCAR Xfinity Series season.

This is an exciting leap as the same transmission was used by 12 team/driver combinations in the series in 2021. These team/driver combinations accounted for 19 wins, 84 top-five finishes, and 147 top-ten finishes for the 2021 season.

Bill St Pierre
Customer Review
I took my 99 F350 in for leaky injector cups. They gave me a start date and a finish date. Even with a fair amount of other problems. They got it done when they said. They went the extra mile of fixing a bad fuel pump to get the injector pressure up to spec. My truck runs nearly like new, even with 400,000 plus miles. Forget the dealer, this is the place!
Hand holding a racing flag in the air

Here at Monster Diesel Repair, we take pride in our work and that’s why we choose only the best of products for our customers. We already have faith in Jasper Engines and Transmissions because of the products they provide and the warranty that backs them up, but this latest news justifies our choice even more. There are thirty NASCAR® team/driver combinations in 2021 that are using the JASPER 4-Speed Transmission. Of those thirty team/driver combinations, eighteen are being used for the NASCAR® Cup Series and twelve are being used for the NASCAR® Xfinity Series.

Felix N. Castro
Customer Review
I have taken my 2004 Superduty to several shops in the valley looking for quality service. Not many diesel shops around in the east valley. Regular shops sometimes cringe when you tell them you drive a diesel!! I have found it with Monster Diesel! Just recently I took my truck in for the 110, 000+ mile service and hard start concern. I was contacted prior to any repairs and so I knew what was going to be done. No surprises. When I went to pick up my truck I was also informed of other potential concerns that I appreciated being informed about. Quality service. Thank you.
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Monster Diesel Repair

1720 W Elliot Rd Ste 104
Gilbert, AZ 85233
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