Service & Installation

Duramax Service Center has you covered. From basic routine maintenance, complete engine / transmission builds to steering and suspension replacements or upgrades. All major credit cards gladly accepted, we can even handle your extended warranty and insurance claims.

Lift Kits

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Duramax Service Center

6693 Merchandise Way,

Diamond Springs, CA. 95619

 

HOURS

8am To 5pm

Monday-Friday 

 

GET IN CONTACT

Toll Free: (877)4MY-DMAX

Local:        (530)622-5630

E-mail:       info@DuramaxServiceCenter.com

 

REPAIRS

No charge basic diagnosis/inspections with other services to all customers, we are here to help. Whether you are going to make the repair yourself or choose us to handle it we want to be your preferred destination for your Duramax needs.
Fuel system, engine, transmission, differentials, turbo, cylinder heads, electrical, steering, suspension, towing, brakes, cooling etc…I think you get the point, we do it all.

INSTALLS & UPGRADES

Excellent installation is always available on aftermarket or OE parts. We have been exclusively serving the Duramax diesel powered 2500 – 3500 trucks since they first hit the market in 2001. Our Service Department has been hand selected and has the highest levels of GM training and ASE certifications.
Need a custom built motor, Stage 5 Allison transmission, fuel system repairs, lift kit, steering and suspension repairs or anything else? Duramax Service Center can help you select the right parts and get them installed.

MAINTENANCE

Standard scheduled maintenance is quick and convenient at Duramax Service Center. All parts and fluids are always in stock. We will keep your factory or extended warranty in compliance and up to date. Call or email to schedule your appointment today.

TECH SUPPORT

From our Service to Sales Departments we have a very knowledgeable staff ready to give you the answers to your Duramax questions. If you are in the middle of a install, trying to diagnose a problem or looking for over the phone advice give us a call. We know these trucks front to back, top to bottom and have seen just about every concern that has come up since 2001.

Give us a shout 877-4MY-DMAX or stop by our facility in Northern California.

DmaxStore
4.7
Based on 76 reviews
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Bill King
Bill King
21:20 16 Dec 20
I ordered parts for my Duramax online and had Parts in 2 days. Quality looks great and priced very fairly. Got... everything for replacing my injectors in one box made things much easier. Thank You for taking the time to answer my questions when calling too !Bill Kingread more
Thomas Schullstrom
Thomas Schullstrom
19:33 11 Dec 20
Friendly, super knowable and happy to answer questions. If you own a Duramax, these are your go-to guys
Pat Boling
Pat Boling
23:13 02 Dec 20
excellent service and very great people!solved a ft in problem with a couple of calls. GREAT JOB!!!!!1
Jason Atkinson
Jason Atkinson
15:41 02 Nov 20
Very helpful staff. Very nice and will point you in the right direction.
Cal R
Cal R
20:16 19 Oct 20
My online ordering went very well. I accidentally had a part in my cart from a previous point, and they quickly removed... and refunded the part I didn't need before it shipped. The guys at the toll-free number were knowledgeable and were great to work with even when I called multiple times due to my own stupidity. The parts came quickly and they look awesome! Can't wait to put them on.read more
Daniel Mula
Daniel Mula
17:38 05 Oct 20
WARNING WARNING CAUTIONSTAY AWAY FROM THESE AFTERMARKET FUEL LINES>MY LB7 HAS HAS NOTHING BUT PROBLEMS WITH THESE... CHEAPLY MADE AFTERMARKET KNOCK OFFS. WITHIN THE TIME SPAN OF 6 MONTHS TO 2 YEARS I HAVE REPLACED 7 OF 8 INJECTOR LINES SYSTEMATICALLY FAILING ONE AFTER ANOTHER AND A HUGE MESS TO CLEAN UP TIME AFTER TIME. MEANWHILE THE TRUCK IS DOWN I LIMP IT HOME STILL LOSING TENS OF GALLONS OF DIESEL FUEL.I WOULD NOT SPEND MY TIME WRITING THIS REVIEW IF IT HAD NOT CAUSED ME A BUNCH OF GRIEF TIME AND MONEY.STICK WITH GM DELCO OEM WHEN IT COMES TO THESE INJECTOR LINES, TRYING TO SAVE YOU THE PAIN AND ANGUISH THEY HAVE CAUSED ME!read more
rod bigman
rod bigman
01:01 04 Oct 20
Dmax store is my new one stop store for duramax. They are well informed of there products they sell and ship real fast.
Diablo Clements
Diablo Clements
17:42 02 Oct 20
Best in the business for every Duramax need wether it's Parts,repairs,upgrades or just making a call to ask a question... they got it covered.read more
Elijah Diemond
Elijah Diemond
03:48 30 Sep 20
Great place, very friendly. Ordered from here a few times but this was the first time I have been in store. They were... very helpful and didn't mind me picking their dmax guru minds. Lol.read more
Collin Hicken
Collin Hicken
19:11 10 Sep 20
Purchased a Dmax fan kit for 09 LMM. Was concerned about the performance and emailed company prior to installation to... discuss. They recommend for light towing. Installed according to instructions. Every time fans powered up, fuses blew. Found that the fans draw 32amps and the harness had 30amp fuses. Replaced fuse holder from their harness and installed 40amp breakers. At that point the fans worked properly UNTIL I towed. Once the vehicle was under any load with a 6000# travel trailer, the fans could not keep the engine cool. In the middle of a family vacation I had to remove the fans and install a new fan clutch and return to the factory fan. Reached out to Dmax store for help. Said nothing they can do. Save your money and shop somewhere else.read more
Bryan Huckabee
Bryan Huckabee
23:12 23 Jul 20
I’ve ordered several products from them, and never a single mistake. Very good service and quality parts !!!!
Mike Thornton
Mike Thornton
19:49 13 Jul 20
Quality people and service. Spoke with Robbie on the phone describing my check engine light and reduced power mode... while towing my camper nearby. He allowed me to have it towed in and have it diagnosed around my scheduled stay in the area. They diagnosed and fixed the problem allowing me to tow my camper back home 175 miles away. Awesome, knowledgeable and caring group of professionals.read more
Joe Lawrence
Joe Lawrence
17:37 26 Jun 20
If you own a Duramax, get to know these guys 💯 excellent service
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