(616)540-7886 info@dieseltecgr.com
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Dieseltec

Dieseltec

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

4 days ago

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….
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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….Image attachmentImage attachment+4Image attachment
Todd Knutson
5 days ago

🔧 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. 💪🔧
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🔧 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. 💪🔧
1 week ago

6.4 Powerstroke in the shop for a head gasket issue. While tearing it down we also found 2 cracked pistons. 😬

More work to add to this one, but we’ll get it taken care of and get this customer back on the road!🔧🛠️

If you are experiencing any issue with your diesel truck give us a call! (616) 540-7886
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6.4 Powerstroke in the shop for a head gasket issue. While tearing it down we also found 2 cracked pistons. 😬

More work to add to this one, but we’ll get it taken care of and get this customer back on the road!🔧🛠️

If you are experiencing any issue with your diesel truck give us a call! (616) 540-7886Image attachmentImage attachment
1 week ago

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
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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

2 CommentsComment on Facebook

Todd and his crew are the best! He's been my mechanic for 20 years.

Joel Bsharah 🥰

2 weeks ago

Check us out for all your diesel needs! ... See MoreSee Less

Check us out for all your diesel needs!
2 months ago

This is our other hat we have now. $25 each ... See MoreSee Less

This is our other hat we have now. $25 eachImage attachment

2 CommentComment on Facebook

Chris Landon

2 months ago

Dieseltec has new hats. $25 each ... See MoreSee Less

Dieseltec has new hats. $25 each

1 CommentComment on Facebook

I'll take 2 🙂

5 months ago

A customer brought us an amazing lunch today!! ... See MoreSee Less

A customer brought us an amazing lunch today!!

2 CommentsComment on Facebook

Omg !!!! Drooling

Yum! Well deserved

7 months ago

Dieseltec has lost power. We have no phones and no lights. Sorry for the inconvenience. ... See MoreSee Less

7 months ago

We are looking to hire a new Technician

Pay: $28.00 - $36.00 per hour depending on licensing and experience

Job description:

Duties:
- Perform automotive diagnostics and repairs on a variety of vehicles, with a focus on Diesel vehicles
- Conduct thorough inspections and identify necessary repairs or maintenance
- Utilize automotive diagnostic equipment to accurately diagnose and troubleshoot issues
- Repair and replace automotive electrical systems as needed
- Provide exceptional customer service and communicate effectively regarding vehicle's needs
- Stay up-to-date with the latest automotive technology and advancements

Requirements:
- Proven experience as a Certified Technician or similar role in an automotive repair shop
- Strong knowledge of automotive diagnostics and repair techniques
- Proficient in using hand tools and automotive diagnostic equipment
- Ability to suspend, transmit, or transfer up to 50 pounds of weight occasionally and/or up to 20 pounds frequently
- Excellent customer service skills with the ability to explain complex technical information in a clear and understandable manner
- Familiarity with Diesel vehicles and their specific repair procedures is highly desirable

Skills:
- Service technician experience in an automotive repair shop setting
- Proficiency in using hand tools for various repair tasks
- Ability to suspend, transmit, or transfer up to 50 pounds of weight occasionally and/or up to 20 pounds frequently
- In-depth knowledge of Diesel vehicles and their specific repair procedures
- Strong customer service skills with the ability to communicate technical information effectively
- Experience with automotive diagnostics and troubleshooting techniques for electrical systems

Please note that this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Job Type: Full-time

Benefits:
Employee discount
Health, dental and vision insurance
On-the-job training
Paid training
holiday pay
sick pay
vacation pay
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5 CommentsComment on Facebook

Y'all're super based, if I were local to you I'd apply.

Tucker Kooman

View more comments

8 months ago

That’s a wrap!! The auto show is done for this year!! ... See MoreSee Less

That’s a wrap!! The auto show is done for this year!!

2 CommentsComment on Facebook

Nice job, Todd & Kat! Great to see you today! 🤗

Well done!!

8 months ago

2026 Michigan International Auto Show!! ... See MoreSee Less

2026 Michigan International Auto Show!!Image attachmentImage attachment+1Image attachment
8 months ago

Last day for the 2026 Michigan International Auto Show. We will be here 10am-5pm. Come see us. ... See MoreSee Less

8 months ago

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1 CommentComment on Facebook

Good turn out ?

8 months ago

Back at it!! The car show is 10am - 9pm today @ the Devos Place!! Come on down to see us if you have time today!! ... See MoreSee Less

8 months ago

Come down to the auto show in Grand Rapids and see us today!! ... See MoreSee Less

Come down to the auto show in Grand Rapids and see us today!!Image attachmentImage attachment+1Image attachment
8 months ago

Checking out the cool cars at the Auto Show!! ... See MoreSee Less

Checking out the cool cars at the Auto Show!!Image attachmentImage attachment+Image attachment
8 months ago

Diesel upset she had to stay home and couldn’t come to the car show!! ... See MoreSee Less

Diesel upset she had to stay home and couldn’t come to the car show!!

1 CommentComment on Facebook

I see your toofers

8 months ago

Shout out to my favorite detailer….. Noble Detailing…. Gavin Pohl is amazing at what he does. Exterior and interior were both done by him. Give him a call; not only is he a great detailer but he has great pricing and he is mobile!! 616-240-9542 or contact@grnobledetail.com ... See MoreSee Less

Shout out to my favorite detailer….. Noble Detailing…. Gavin Pohl is amazing at what he does. Exterior and interior were both done by him. Give him a call; not only is he a great detailer but he has great pricing and he is mobile!! 616-240-9542 or contact@grnobledetail.comImage attachmentImage attachment+1Image attachment
8 months ago

If you are coming down to the 2026 Michigan International Auto Show stop by and see us!! ... See MoreSee Less

If you are coming down to the 2026 Michigan International Auto Show stop by and see us!!Image attachmentImage attachment
8 months ago

Dieseltec is almost set up and ready for the show!! ... See MoreSee Less

Dieseltec is almost set up and ready for the show!!Image attachment
8 months ago

Black beauty is all prettied up for the auto show downtown!! ... See MoreSee Less

Black beauty is all prettied up for the auto show downtown!!

1 CommentComment on Facebook

Nice!!

8 months ago

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!!
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8 months ago

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!!
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8 months ago

Dieseltec will be CLOSED
Thursday, January 29, 2026 and Friday, January 30,2026

Dieseltec will be downtown Grand Rapids at the Michigan International Auto Show.

Come down and see us. We will be there Thursday, Friday, Saturday and Sunday!!
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1 CommentComment on Facebook

See you Friday evening!!

9 months ago

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!!
... See MoreSee Less

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!!
11 months ago

Dieseltec is having issues with our phone system. If you receive a text from us that is a text only number. if you are looking to talk to a person our business phone number is 616-540-7886.

We are trying to resolve this issue as quickly as possible, thank you.
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1 years ago

Dieseltec will be closed tomorrow, Friday, September 26. Our team will be in a training all day.

Thank you!!
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1 years ago

We have our sweatshirts and t-shirts in. We, also, have Beanies.

Beanies $22
T-shirts Sm - xl and 3xl $25
Sweatshirts Sm - 3xl $40
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We have our sweatshirts and t-shirts in. We, also, have Beanies. 

Beanies    $22
T-shirts    Sm - xl and 3xl    $25
Sweatshirts    Sm - 3xl    $40Image attachmentImage attachment
1 years ago

Dieseltec will be closed Friday, May 23, 2025 and Monday, May 26, 2025 in Observance of Memorial Day ... See MoreSee Less

1 years ago

Thank you, Scott Brock, for allowing us the pleasure of building this beauty. Scott brought us a 1979 Ford F250 Lariat rolling chassis without the front clip, a p7100 12v Cummins engine, and a 4R100 transmission and asked us to install them and make it work. Challenge accepted! The frame, crossmembers, and firewall needed a little modification to fit the Cummins and 4R100. To make room and clean up the engine compartment, we pulled the old hvac system out and installed a Vintage Air under dash system. Made a ton of space for our turbocharger and cold air intake. Once we had our modifications done, we installed the engine and transmission with a custom rear cover and flywheel from Diesel Conversion Specialists, married a Borg Warner transfer case, and custom built driveshafts. We used a US Shift Quick 4 transmission controller for the 4R100. Modified the fuel tank and installed a Beans sump to feed the Fass fuel system to supply the P-Pump which was modified with DDP delivery valves, rack cap, 4000 rpm governor springs and custom grind fuel plate to feed the 90 hp injectors so we could light the s362 turbocharger to give it a little extra. Custom intercooler system, accessory belt drive, cooling fans, wiring harness, and exhaust system for the final touches once the front clip was installed. Lots of attention to detail on our builds. Scott was very pleased to drive this home on the other side of the state! A special shout out to Ryan Mroz for leading this project and paying such attention to detail.

-Team Dieseltec
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Thank you, Scott Brock, for allowing us the pleasure of building this beauty.  Scott brought us a 1979 Ford F250 Lariat rolling chassis without the front clip, a p7100 12v Cummins engine, and a 4R100 transmission and asked us to install them and make it work.  Challenge accepted!  The frame, crossmembers, and firewall needed a little modification to fit the Cummins and 4R100.  To make room and clean up the engine compartment, we pulled the old hvac system out and installed a Vintage Air under dash system.  Made a ton of space for our turbocharger and cold air intake.  Once we had our modifications done, we installed the engine and transmission with a custom rear cover and flywheel from Diesel Conversion Specialists, married a Borg Warner transfer case,  and custom built driveshafts.  We used a US Shift Quick 4 transmission controller for the 4R100.  Modified the fuel tank and installed a Beans sump to feed the Fass fuel system to supply the P-Pump which was modified with DDP delivery valves, rack cap, 4000 rpm governor springs and custom grind fuel plate to feed the 90 hp injectors so we could light the s362 turbocharger to give it a little extra.  Custom intercooler system, accessory belt drive, cooling fans, wiring harness, and exhaust system for the final touches once the front clip was installed.  Lots of attention to detail on our builds.  Scott was very pleased to drive this home on the other side of the state!  A special shout out to Ryan Mroz for leading this project and paying such attention to detail.

-Team DieseltecImage attachmentImage attachment+Image attachment

1 CommentComment on Facebook

Well done !

3 years ago

Tim took his final bike ride Sunday. We will miss you, brother. Give heaven hell! ... See MoreSee Less

3 years ago

Tim took his final bike ride Sunday. We will miss you, brother. Give heaven hell! ... See MoreSee Less

Tim took his final bike ride Sunday. We will miss you, brother. Give heaven hell!

1 CommentComment on Facebook

thanks todd best boss ever

3 years ago

Diesel chilling at the shop. ... See MoreSee Less

Diesel chilling at the shop.

1 CommentComment on Facebook

he's missing tim

3 years ago

Dieseltec will be closed Friday, October 13, 2023. We will be having a training meeting, so that we can better serve our customers. ... See MoreSee Less

3 years ago

Our new mascot for the shop. Stop in and say hi to Diesel; she loves meeting new people. ... See MoreSee Less

Our new mascot for the shop. Stop in and say hi to Diesel; she loves meeting new people.

2 CommentsComment on Facebook

A girl dog named diesel that's interesting.

🥹

3 years ago

#38 Brayden Cook, great night. First race took 8th place and second race took 6th place!! Congratulations!! ... See MoreSee Less

#38 Brayden Cook, great night. First race took 8th place and second race took 6th place!! Congratulations!!
3 years ago

Out at Berlin Raceway getting ready for the races. #38 Brayden Cook ... See MoreSee Less

Out at Berlin Raceway getting ready for the races. #38 Brayden CookImage attachmentImage attachment
3 years ago

Dieseltec is sponsoring a young driver out at the Berlin Raceway. Take a Saturday and go watch #38 Brayden Cook race. ... See MoreSee Less

1 CommentComment on Facebook

👍👍

4 years ago

#mechanicalliance ... See MoreSee Less

2 CommentsComment on Facebook

just floor it and use the rotor against the caliper

4 years ago

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4 years ago

Voting ends at 3:00 ... See MoreSee Less

Voting ends at 3:00

1 CommentComment on Facebook

Kat Knutson, Todd Knutson Hope you guys had a good time today. Trucks are beautiful.

4 years ago

Entry number 5. ... See MoreSee Less

Entry number 5.
4 years ago

Come join us! Couldn’t have asked for a better day. ... See MoreSee Less

Come join us! Couldn’t have asked for a better day.
4 years ago

Entry number 3 ... See MoreSee Less

Entry number 3
4 years ago

Entry number 4 ... See MoreSee Less

Entry number 4
4 years ago

Moody’s lifted dually ... See MoreSee Less

Moody’s lifted dually
4 years ago

Getting the day going. Our first two Shown-n-Shine competitors are here. ... See MoreSee Less

Getting the day going. Our first two Shown-n-Shine competitors are here.Image attachmentImage attachment+1Image attachment
4 years ago

Shop truck all shined up today. ... See MoreSee Less

Shop truck all shined up today.
4 years ago

Entry number 2. ... See MoreSee Less

Entry number 2.
4 years ago

Entry number 1. Come vote. ... See MoreSee Less

Entry number 1. Come vote.

1 CommentComment on Facebook

No 1 for a reason. 🥰

4 years ago

Food is ready! ... See MoreSee Less

Food is ready!
4 years ago

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.
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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.
4 years ago

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
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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
4 years ago

Extra! Extra! Read all about it!!!! Our good friends at Dieseltec have offered to match donations from now 5/25 to June 1st!!!

Help a kitty out!

PayPal: www.paypal.me/nextchapterpetrescue?locale.x=en_US
Cash app: $nextchapterpet
Venmo: $Nextchapterpet

We are already at $85!
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4 years ago

Todd Knutson hard at work!! ... See MoreSee Less

Todd Knutson hard at work!!Image attachmentImage attachment

2 CommentsComment on Facebook

Well , Maybull loves ya . Along with her mom . Best fix it man I’ve ever had !

It's a doggie world out there.

4 years ago

PhotosDon't drive stock! Get 10% OFF select Custom Tuning now!
hubs.la/Q018GXGX0
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4 years ago

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!!
... See MoreSee Less

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!!

1 CommentComment on Facebook

They are the best!!!

4 years ago

Photos from Dieseltec's post ... See MoreSee Less

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4 years ago

Photos from Dieseltec's post ... See MoreSee Less

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4 years ago

Photos from Dieseltec's post ... See MoreSee Less

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5 years ago

Wow what a year it has been! The community support since Kat and I took over has been phenomenal!! Thank you all so much for helping us keep Dieseltec growing! There has been a lot of changes over the last year. We have put together an amazing team. Todd, Tim, and Orin are still with us. Moody has returned. We have added a few great team members. Welcome Spencer-part time technician/service writer, Isaac-full time mechanic, Kasey-full time mechanic, and Bernard-sales, detailing, and group therapist. And, of course, Kat- who keeps us all pointed in the right direction and makes sure everything is taken care of behind the scenes. Thank you all for taking care of our customers.
Speaking of customers, thank you for trusting Dieseltec with your projects and repairs. Here are a few photo's of some of the things we have done over the last year.....
... See MoreSee Less

Wow what a year it has been!  The community support since Kat and I took over has been phenomenal!! Thank you all so much for helping us keep Dieseltec growing!  There has been a lot of changes over the last year.  We have put together an amazing team. Todd, Tim, and Orin are still with us.  Moody has returned.  We have added a few great team members.  Welcome Spencer-part time technician/service writer, Isaac-full time mechanic, Kasey-full time mechanic, and Bernard-sales, detailing, and group therapist.  And, of course, Kat- who keeps us all pointed in the right direction and makes sure everything is taken care of behind the scenes.  Thank you all for taking care of our customers.
Speaking of customers, thank you for trusting Dieseltec with your projects and repairs.  Here are a few photos of some of the things we have done over the last year.....Image attachmentImage attachment+Image attachment

2 CommentsComment on Facebook

Wouldn't take my truck anywhere else! Thank you guys for all the great work on my truck!

Still no green smoker pictures. Need to see that thing tore apart

5 years ago

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5 years ago

Lots of changes over the last year. We have some remodeling going on, the guys are busy working on trucks, and lots of changes at Dieseltec, including some of the staff. It has been a great year for us; we had some hiccups to get through when taking over as the new owners. We have made changes in many areas here at Dieseltec and are looking forward to an even better year serving our customers. ... See MoreSee Less

Lots of changes over the last year. We have some remodeling going on, the guys are busy working on trucks, and lots of changes at Dieseltec, including some of the staff. It has been a great year for us; we had some hiccups to get through when taking over as the new owners. We have made changes in many areas here at Dieseltec and are looking forward to an even better year serving our customers.Image attachmentImage attachment+5Image attachment
5 years ago

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5 years ago

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5 years ago

Check out the NEW Dieseltec Vinyl stickers!! ... See MoreSee Less

Check out the NEW Dieseltec Vinyl stickers!!
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