(616)540-7886 info@dieseltecgr.com

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Dieseltec

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Your light to medium duty diesel headquarters in Grand Rapids, MI Service, Repair, and Performance

We want to hear from you! Contact us to chat about our open technician position!
DIESELTEC IS EXPANDING We’re looking to add an experienced Master Automotive Technician to our team. • 5+ years of automotive experience • Diesel knowledge required • 5-day work week • Competitive pay • Paid vacation • Holiday pay • Health insurance • Employer-paid uniforms • And more At DieselTec, we believe in creating a fun, positive work environment where our technicians enjoy coming to work, work together as a team, and take pride in the quality of work we put out. We’re a growing shop with a strong focus on doing things right and taking care of both our customers and our employees. If you’re an experienced technician looking for a great place to work and an opportunity to grow with a growing shop, we want to hear from you. DieselTec Grandville, MI Message us for more information or to apply.
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
One of our latest projects is gaining momentum. Building a monster pulling truck. The power train on this ‘15 Duramax is being built with a Callie’s billet keyed crankshaft, Wagler CRC6.6 I beam connecting rods, Flycut and coated pistons, stage 2 alternate firing camshaft, 145lb valve springs, and 4130 chromoly pushrods. Fueled by Exergy 12mm stroker cp3 pump, 200 over injectors with an RDS 72mm turbocharger fed by PPE high flow manifolds and inlet pipes. This build is backed by a Merchant Automotive Pro Series Allison Transmission specifically designed for the power plant specifications. We are expecting a torque monster out of this one! More to come….
🔧 Keeping this Ram 2500 work truck working hard! After completing a transmission replacement, we installed a Mishimoto auxiliary transmission cooler to help keep temperatures under control and protect the new transmission. Excessive transmission heat can break down fluid and accelerate wear on internal components, shortening transmission life. Keeping temps down is especially important on a work truck that sees heavy loads and hard use. At Dieseltec, we don’t just fix the problem—we look for ways to help prevent it from happening again. 💪🔧
Dieseltec is now servicing small diesel equipment! 🔧 We’re expanding our services to include engine repair and maintenance for small diesel equipment, helping keep your equipment running reliably and efficiently. 📞 Contact Dieseltec today for your diesel repair and maintenance needs! (616) 540-7886
Dieseltec has new hats. $25 each
A customer brought us an amazing lunch today!!
That’s a wrap!! The auto show is done for this year!!
Diesel upset she had to stay home and couldn’t come to the car show!!
Black beauty is all prettied up for the auto show downtown!!
Dieseltec will be at the Michigan International Auto Show at the DeVos Place in Grand Rapids. Thursday, January 29, 2026 1- 9pm / Friday, January 30, 2026 10am - 9pm / Saturday, January 31, 2026 10am - 9pm / Sunday, February 1, 2026 10am - 5pm Come Join us!!
Tim took his final bike ride Sunday. We will miss you, brother. Give heaven hell!
Diesel chilling at the shop.
Our new mascot for the shop. Stop in and say hi to Diesel; she loves meeting new people.
#38 Brayden Cook, great night. First race took 8th place and second race took 6th place!! Congratulations!!
Voting ends at 3:00
Entry number 5.
Come join us! Couldn’t have asked for a better day.
Entry number 3
Entry number 4
Moody’s lifted dually
Shop truck all shined up today.
Entry number 2.
Entry number 1. Come vote.
Food is ready!
Door Prizes are here for the Customer Appreciation Day!! Come out and see us Saturday, October 15, 2022 from noon - 4pm. You can, also, pretty up your trucks and sports cars and join our Shown N Shine competition from 1-3pm. We have great prizes for 1st, 2nd and 3rd places. Or just enjoy some free food, meet the team and vote for your favorite truck in the competition.
Prizes for the SHOW N Shine have come in. 1st place: Edge Insight CTS3 2nd place: Zeak 12,000lb Electric Truck Winch with Synthetic Rope, waterproof and wireless remote 3rd place: Chemical Guys 14 Piece Arsenal Builder Car Wash Kit with Foam Gun
The monster is loose!!! Good the have this beast back up and going!!! I have been trying to get her fixed since last July and now she is back and ready to play!! Thanks to the great group of people at diesel tec of Grandville MI for taking on the project of doing the heads, ficm, injectors oil cooler glow plugs exhaust and leaf springs!! Just to be clear they took over the project after someone else started it and in just a matter of just a couple weeks they had all that done plus figured out the problem with the 4x4 Thank u guys so much!!! U promised to have me loving my truck again and u did just that!!! Thank you, James, for giving us the opportunity!!
Check out the NEW Dieseltec Vinyl stickers!!

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