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Cummins Automotive and Diesel Service LLC

4.7

About this business

Location details

11225 SW Clay St, Sherwood, OR, 97140, United States

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WeekdayScheduleStatus
Mon7:00 a.m. to 5:00 p.m.
Tue7:00 a.m. to 5:00 p.m.
Wed7:00 a.m. to 5:00 p.m.
Thu7:00 a.m. to 5:00 p.m.
Fri7:00 a.m. to 5:00 p.m.
SatClosed
SunClosed
4.793 reviews
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Dilpreet singh's profile image
Dilpreet singh 
a week ago

Thanks you sir for helping me. Cummins got the best service guys, very much accommodating and quite quick in fixing trucks. Very reasonable and efficient in what they do. Thanks for the electric tape. 

GlenG's profile image
GlenG 
3 weeks ago

I'm the guy who doesn't do reviews because I've found it extremely difficult to find a shop that actually gives a damn and does excellent work. Seamus and his crew did several upgrades (Banks, PPE, FASS) to my 2025 GMC 6.6 Duramax recently and I must say I am VERY IMPRESSED with the high level of professionalism, timeliness, and diesel knowledge his shop possesses. And when one unusual issue came up, Seamus did not hesitate to re-evaluate the situation. He resolved the issue quickly....and...did not charge any additional lab... read more

Z B's profile image
Z B 
a month ago

I live out of state and saw a 2nd Gen Cummins i was interested in buying. Seamus sent his tech over to the seller for inspection. It was not cheap but well worth it. He found a multitude of things that im glad i know about now and will definitely fix! Couple things i requested to find out that i did not got answers on initially. But these guys are very knowledgeable. Would recommend them for inspection and I would use them for service if I wasn’t out of state!! 

Heather Jones's profile image
Heather Jones 
a month ago

EXTREMELY helpful, friendly, knowledgeable, NO BS. Seamus is the absolute king of diagnosing difficult diesel problems. My truck has had issues for 3 YEARS and I was on the verge of selling it because I've spent thousands and thousands trying to get it fixed... he figured it out and now it's like brand new. Crazy. Take your truck to Cummins first and save yourself the pain -- they'll take great care of you <3 

matthew reynolds's profile image
matthew reynolds 
a month ago

Shamus and his crew are awesome!!! My F350 had serious problems. They were fair priced and honest about its problems. Nothing but good things to say about this outfit. 

Frequently asked questions about Cummins Automotive and Diesel Service LLC

How is Cummins Automotive and Diesel Service LLC rated?

Cummins Automotive and Diesel Service LLC has a 4.7 star rating with 93 reviews. 

When is Cummins Automotive and Diesel Service LLC open?

Cummins Automotive and Diesel Service LLC is closed now. It will open on Monday at 7:00 a.m. 

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