JT's Diesel Performance

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JT's Diesel Performance Our business specializes in Diesel Repair Services and Diesel Performance, Give us a call today!

10/15/2026

Another flat tappet conversion for those pesky 5th gen’s ! Call to get yours on the schedule to save yourself some 💵 and heart ache instead of replacing your engine 🤟🏻 774-627-8231 📞☎️

10/14/2026

A little grid heater plate education for you 6.7 Cummins owners 🫡💅 stay safe or call me to upgrade to the Fleece Performance Engineering upgrade or Banks Power kit 🤟🏻

10/09/2026

Well Seth Zitano has returned after his victorious win at our dyno day in June to get some testing done and really break in his new engine on the dyno! Great day of testing looking forward to what he can do with this thing now with compounds 🤟🏻🫣 #6.0

10/09/2026

Happy Friday 😂😂😂

10/05/2026

A day in the life in our shop🤟🏻 The boys are grinding away getting those trucks back to you guys! If you want to get on our schedule give us a call 774-627-8231 📞

09/29/2026

And this folks is why you should always make sure to check those grid heater bolts or you too could be needing an engine replacement 🫣🤟🏻 nice work Taylor Loring

09/28/2026

Here’s some video proof for all you 12 valve owners that say their trucks don’t make power on a dyno……..

Shoutout to Mike Layden Layden Diesel Repair with his sweet build that put down 1180hp on the first hit, definitely has a lot more in it but the power went out 😂🤘🏻

09/25/2026

The amount of debris in the rear diff cover was quite impressive but this customer is going back on the road to work after Timmy Plunkett did a full rear end rebuild on this 5th gen!

When “I can do it myself” turns into a side quest you weren’t prepared for. 💀😂 Next time just call us to schedule! 774-6...
09/25/2026

When “I can do it myself” turns into a side quest you weren’t prepared for. 💀😂 Next time just call us to schedule! 774-627-8231 !

09/24/2026

This is why you always check your filters because they could be sucked in and causing turbo codes!!🤟🏻

Address

28 Hastings Street Building C Unit E
Mendon, MA
01756

Opening Hours

Monday 6am - 5pm
Tuesday 6am - 5pm
Wednesday 6am - 5pm
Thursday 6am - 5pm
Friday 6am - 5pm

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