Goodfellas Diesel

Goodfellas Diesel Welcome to Goodfellas Diesel!! The Champlain valley's home for diesel performance. specializing in all Cummins, Powerstroke, and Duramax powered trucks.

Maintenance and repair, head gasket jobs, engine overhauls, transmissions, cab-offs and more! XDP diesel Authorized dealer
BD power Authorized dealer
FASS fuel systems Authorized dealer
South Bend Clutches Authorized dealer
S&B filters Authorized dealer
Weathertech Authorized dealer
F1 flux diesel injection

Authorized dealer
Randy’s transmissions Authorized dealer
Muldoons Authorized dealer
Power driven diesel Authorized dealer
MDC/ Smeding diesel Authorized dealer
Maverick diesel Authorized dealer

We’re proud to support a local stable that helps kids build confidence, learn valuable life skills, and pursue their dre...
06/17/2026

We’re proud to support a local stable that helps kids build confidence, learn valuable life skills, and pursue their dreams both in and out of the saddle. 🐴❤️

Small businesses and community members coming together can make a big difference in the lives of local youth. If you’re able, consider supporting organizations like this that invest so much time and heart into helping kids grow and succeed.

Here’s to the riders, the families, and the volunteers who make it all possible. We can’t wait to see what these young equestrians accomplish this season!

Another 6.7 powerstroke getting the DCR conversion pump from S&S Diesel Motorsport to ditch that problematic cp4!Don't l...
06/16/2026

Another 6.7 powerstroke getting the DCR conversion pump from S&S Diesel Motorsport to ditch that problematic cp4!

Don't let a bad pump cost you megabucks! A few grand now can save you double that down the road avoiding a total fuel system failure!

Call/text 802-558-5527
Goodfellasdiesel.com

Nothing but the best in all our builds! Randy's Transmissions triple disc and Sonnax billet input shaft. 💪🏼 We build the...
06/15/2026

Nothing but the best in all our builds! Randy's Transmissions triple disc and Sonnax billet input shaft. 💪🏼

We build the best , for the best , with the parts from the best. No excuses, no exceptions.

Need a trans for your truck? Call today to get on the schedule
802-558-5527
Goodfellasdiesel.com

Cummins down 🫣This 2018 came in for a loud knock that we hoped was just a dropped rocker bridge for their sake. sad to s...
06/14/2026

Cummins down 🫣

This 2018 came in for a loud knock that we hoped was just a dropped rocker bridge for their sake. sad to say after only 104k miles it dropped a valve seat on #2 and destroyed the motor. Customer was pretty gutted over the news and can't say we blame him, unfortunately there is no predicting or preventing failures like this it's just bad luck.

This teslongusa borescope camera off Amazon is one badass unit tho, small enough to fit down any injector whole and the ability to look backwards 180° to see the valve faces gives us the ability to really assess damage in instances like this.

Industrial Injection 5.9 long block recently installed in another long time customers truck, after 580k kilometers ( 360...
06/13/2026

Industrial Injection 5.9 long block recently installed in another long time customers truck, after 580k kilometers ( 360k miles ) the old motor had said no more. We sent his injectors we installed some years ago back to Flux Diesel Injection for a health check before we reinstalled them in the fresh motor, added a new stealth64 turbo, Fleece Performance Engineering cp3K to keep this old work horse going for a long time yet to come.

Call/text 802-558-5527
Goodfellasdiesel.com

One question we get all the time is:“Do you ship transmissions?”The answer is simple: No, we don’t.Are we leaving money ...
06/12/2026

One question we get all the time is:

“Do you ship transmissions?”

The answer is simple: No, we don’t.

Are we leaving money on the table by not shipping units across the country? Absolutely. But what we’re not willing to sacrifice is the quality of the installation and the long-term success of the transmission.

At GoodFellas Diesel, we’ve built our reputation on delivering reliable transmissions that last. Over the years, we’ve maintained a nearly 100% success rate because we control every part of the process—from the build itself to the final installation and calibration.

The reality is that even the best transmission can be damaged by improper installation, contaminated coolers, incorrect fluid levels, or poor tuning. That’s why we strongly discourage self-installs and why we price our installation packages competitively—to make it worthwhile for you to let us handle the entire job.

Every transmission installation includes:

✅ All required fluids
✅ HotFlush™ cooler cleaning service to remove contamination from the factory cooling system
✅ Proper installation and setup by experienced technicians
✅ Discounted TCM calibrations and transmission tuning for customers purchasing a transmission from us

Our goal isn’t to sell the most transmissions—it’s to provide the best possible result for every customer who trusts us with their truck.

We may lose a few sales by taking this approach, but we’ll never compromise our standards, our quality, or our customers’ success just to make a quick buck.

That’s the GoodFellas way.

802-558-5527
Goodfellasdiesel.com

At GoodFellas Diesel, we believe in treating our customers like family, especially one who's been with us as long as Dak...
06/12/2026

At GoodFellas Diesel, we believe in treating our customers like family, especially one who's been with us as long as Dakota has. That’s not just something we say—it’s how we do business every day.

When a cylinder head we ordered arrived incorrectly from XDP, we had two options: start the lengthy return and freight process or find a way to keep our customer from being down any longer.

So instead of waiting, I loaded the head in the truck and made the trip to New Jersey myself to exchange it for the correct one. It saved days of downtime, eliminated the shipping headache, and most importantly, got our customer back to work faster.

We’ve driven hours for customers before, and we’ll do it again when the situation calls for it. Because at the end of the day, taking care of people is what matters most.

That’s what it means to be a GoodFella.

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06/11/2026

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Sometimes you just get lucky! This is a customers truck that came in needing a headgasket. This is a 1,000hp+ truck with...
06/11/2026

Sometimes you just get lucky!

This is a customers truck that came in needing a headgasket. This is a 1,000hp+ truck with big fuel and big compounds and a stage 1 D&J Precision Machine cylinder head that's been going strong and taking a licking for the last 2 years. We noticed an exhaust valve on #6 was chipped and we can only assume had been like this for a good while. The boys at D&J overnighted a new valve and it's back to the streets putting in the work on you T&D boys 🫣

Want to take your truck to the next level?
Call/text 802-558-5527
Goodfellasdiesel.com

🇺🇸 250 Years of America Summer Sale at GoodFellas Diesel 🇺🇸The parts are rolling in and the builds are moving! We’ve got...
06/11/2026

🇺🇸 250 Years of America Summer Sale at GoodFellas Diesel 🇺🇸

The parts are rolling in and the builds are moving! We’ve got multiple 68RFEs on the bench this week loaded with proven components from Randy’s Transmissions. We experienced a longer-than-normal lead time while Randy’s completed their facility move, but we’re fully restocked and putting in the extra hours to get caught up and keep your trucks on the road.

Whether you’re looking for a 48RE, 68RFE, 6R140, 5R110W, or another diesel transmission build, we have options ranging from stock replacement units to high-horsepower performance builds.

🔥 Now through July 4th:
✅ $250 OFF any transmission build
✅ FREE billet flexplate
✅ FREE upgraded flexplate hardware

Built for work trucks. Built for tow rigs. Built for performance.

📞 Call or Text: 802-558-5527
🌐 GoodFellasDiesel.com

Champlain Valley’s Home for Diesel Performance 🇺🇸

Address

3096 NY-22a
Fair Haven, VT
12837

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

Telephone

+18025585527

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