Millson Diesel Repair & Performance

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Millson Diesel Repair & Performance Millson Diesel Located in Bowdoin, ME, Offering Professional Repair and Performance of All Diesel Trucks Specializing in GM Duramax.

For All Work Inquiries, Text or Call (207)740-5650

Well this long winded project is finally pretty much a wrap. We went through this truck top to bottom giving it many mor...
09/19/2026

Well this long winded project is finally pretty much a wrap. We went through this truck top to bottom giving it many more years to live.

Full service of every fluid
BD manifolds
Turbo reseal
Glow plugs
PCV reroute
Bulletproof water pumps
Billet fuel filter housing & S&S disaster kit
OEM style coil springs, shocks, and spring towers
Full suspension rebushing, with bigger rear blocks for a level lift height
BDS dual stabilizer
Trac bar, tie rods, steering dampener
Front and rear bumpers
Roughly 100ft of broken, corroded, or inoperable aftermarket wiring, replaced or discarded
Full strip and paint on the frame, with undercoat

This is just touching the surface of everything we did, both engine and chassis wise. Thank you Troy for trusting me with this, and having patience while completing this and juggling other work at the same time.

2019 Cummins in for a Hamilton camshaft and flat tappet lifter conversion. Customer did it strictly as preventative main...
07/18/2026

2019 Cummins in for a Hamilton camshaft and flat tappet lifter conversion. Customer did it strictly as preventative maintenance due to the common hydraulic lifter failure of the 19+ 6.7s. This kit goes back to the conventional flat tappet lifters, upgraded 3500lb push rods, and adjustable valve train.

If you’re looking to upgrade your Cummins give us a call (207)740-5650

Quick weekend job on this lb7. This truck came in with a heavy oil leak which turned out to be from diesel getting into ...
06/07/2026

Quick weekend job on this lb7. This truck came in with a heavy oil leak which turned out to be from diesel getting into the oil and overfilling the crank case. Tristan & Hunter got it back together with new OEM injectors, injector cups, return lines, seals, and hard lines. While the cabs off we did a motor inspection aswell as a valve lash tune up.

Have a duramax problem? Give us a call (207)740-5650

2019 6.7 Cummins with only 102,000 miles and this grid heater was not only completely clogged with soot, but the heater ...
05/14/2026

2019 6.7 Cummins with only 102,000 miles and this grid heater was not only completely clogged with soot, but the heater nut failed. The nut on the bottom side circled in red (already broken off this one) over time weakens from heat and vibration. The only place it can go… is right into the cylinder destroying the piston, head, and possibly worse.

If you’re looking to save yourself thousands in motor work, give us a call and schedule an appointment. We always highly recommend going back together with a BANKS Monster ram intake increasing air flow, and eliminating the grid heater nut.

Millson Diesel, Bowdoin ME
(207)740-5650

We’ve been nothing but busy for the last couple months so I haven’t had the chance to update with social media. I’ve fin...
04/29/2026

We’ve been nothing but busy for the last couple months so I haven’t had the chance to update with social media. I’ve finally brought on Tristan full time in the shop, so that means turnaround times reduce, and the schedule will open up faster. Big thanks to all my customers who keep me so busy, it’s a good problem to have.

We are still booking out a decent bit, so if you’re looking to get on the schedule sooner than later please reach out via text or call. Diagnostics, upgrades & performance, or general repairs we do anything diesel.

(207)740-5650
Messenger is very rarely checked, so please call or text for work inquiries

Just wrapping this one up, Truck came in with an extremly bad headgasket. Customer wanted to make sure it’s reliable for...
01/12/2026

Just wrapping this one up, Truck came in with an extremly bad headgasket. Customer wanted to make sure it’s reliable for the future and get it back on the road. Just some of the many parts in this one
- Fleece performance heads
- Head studs
- Merchant full engine gasket kit (reseal)
- Fass 165 lift pump
- Powersteering pump, lines, cooler
- Sinister trans brace
- All small parts like glow plugs, belt, rubber hoses, etc
- High micron cp4 metering valve
- Cleaned and oiled the top side of the frame
- Manifolds and up pipes
- Tow mirrors, Tint, and much much more

For any diesel work big or small, give me a text or call (207)740-5650

I don’t often see messages on messenger so feel free to reach out via phone

6.4 in for a refresh, getting ready for winter!-BD manifolds and up pipes-XDP starter -Cab mount bushings, and bed bolts...
11/20/2025

6.4 in for a refresh, getting ready for winter!
-BD manifolds and up pipes
-XDP starter
-Cab mount bushings, and bed bolts
-Leaks, broken bolts, and anything else we can find.

Give me a call to get on the schedule, I am starting to book out a couple weeks so if you’re looking for work, please reach out!

Been pretty absent on Facebook recently and it’s just due to the fact that I’ve been extremely busy in the last couple w...
11/07/2025

Been pretty absent on Facebook recently and it’s just due to the fact that I’ve been extremely busy in the last couple weeks. I can’t say thank you enough to the people who have trusted me with their vehicles, and Im thankful for all the new people I’ve met.

Some recent work that’s been in the shop, but not limited to…

-6.7 Ford for a cp4 disaster prevention fuel kit & Rail pressue regulator
-Window tint
-Duramax cab light install, and wiring into factory harness
-L5P HSP high flow piping kit
-6.4 Ford starter
-Multiple trucks for emission faults
-F350 for Plow prep package with HD front coil springs
-skidder motor removal for Cotes Forestry

For any work give me a call, no project too big or too small. (207)740-5650.
Please be patient if you use messenger, I try my best to answer everyone quickly, but sometimes things get very busy here

This was a good project, f550 dump body came in with no lights working, chopped up wiring and a list of other things nee...
10/18/2025

This was a good project, f550 dump body came in with no lights working, chopped up wiring and a list of other things needing attention
- custom tail light harness made in house
- egr replacement
- ccv replacement
- all new LED lights front to rear
- window tint
- coolant leaks in multiple spots
- new trailer plug wired into the new tail light harness
- dual function strobe/flood pods
And many more small things. Thank you Zach Cote for the business

6.0 in for a crank no start. After a quick scan, and high pressure oil leak down test found stand pipe o-rings blown. Ne...
10/10/2025

6.0 in for a crank no start. After a quick scan, and high pressure oil leak down test found stand pipe o-rings blown. New stand pipes, dummy plugs, glow plugs and a couple small leaks fixed and it’s back on the road starting faster than ever. Thank you Cameron for the business!

I’m officially full time Mon-Fri on diesel/automotive repair and performance as well as tint. If you or anyone you know has a truck that needs the life put back into it, give me a call or shoot me a message. No project too big, or too small. No scheduling months out and no outrageous diesel shop prices while still maintaining high quality work.
(207)740-5650

Address

10 Turkey Trot Lane, Bowdoin
Bowdoin Center, ME
04287

Telephone

+12077405650

Website

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