Williams Diesel Service was established in 1970 and located on Magnolia Avenue in historic downtown Ocala, Florida. The current owners, Charles and Rosemarie Oliveros, bought the business in 1990, bringing their knowledge and expertise of the diesel industry from South Florida to Marion County.
Customers consistently praised the friendly and knowledgeable staff, highlighting their helpfulness and professionalism.
Honesty and Trustworthiness
Many reviews emphasized the shop's honesty, with customers appreciating that they do not push unnecessary repairs and provide fair pricing.
Efficiency and Timeliness
Several customers noted quick turnaround times for repairs, often receiving their vehicles back sooner than expected.
Expertise in Diesel Repairs
The business is recognized for its specialized knowledge in diesel mechanics, with many recommending it for various diesel-related issues.
Mixed Experiences
While most feedback is positive, a few customers reported dissatisfaction with specific repairs and pricing, indicating some inconsistency in service quality.
TM
Tyler Mercurey
2 days ago
5.0
Hey guys Tyler Mercurey here! Thanks for all you guys do!! Williams Diesel is by far the best diesel shop in town. DO NOT SLEEP ON THEM!
Picked up my BILLET actuator for my 2018 Ram 2500. The whole process was seamless from start to finish! No calibration! No problem! You guys are awesome! Thank you again!
WS
Walt Stacks
6 days ago
5.0
I can't thank Williams diesel enough!!! About a month ago my turbo blew on my semi messing up my doc and dpf filters from oil contamination . The customer service is A1 and they are nice people. After spending 9k on a new turbo, spending another 9k at the dealer for the filters was a crazy pill to swallow. Williams however offered me their recore process for half the price. They cleaned and baked my canisters and applied their own filters and man multiple passive regens, I haven't had not 1 issue with their fix. NO FAULTS, NO MANUAL REGENS. Do not hesitate whatsoever if you have to go this route. Their product works like OEMA FILTERS. HUGE THANK YOU
GN
Gerald Newton
Nov 14, 2025
5.0
They have done our service for years on my 2010 Dodge Ramm 2500 Diesel. Recently it wouldn't start and we called them to have someone tow it. Tow company was here within 30 minutes and jump started it and towed it in. We assumed it was the batteries. We knew we wouldn't hear that day but got a call the next day and it was the batteries, which they found that they should be covered under warranty. (We knew that they'd been replaced but couldn't remember how long ago. ) Ended up all that we owed was for the tow and the labor to put them in. Great communication to let us know exactly what they found and that it was already ready for pick up. Always had great service with Rick and the others in the office.
DG
Dakota Giles
Sep 10, 2025
5.0
Gave Williams a call on Friday brought truck in Sunday for a no start issue and they got it fixed and back to me by Wednesday morning. Runs like a top now. Very knowledgeable techs here. Highly recommend for any diesel work.
TS
Tabatha Sellers
Jun 6, 2025
5.0
James & Rick have always taken the best care of us. We have an unusual truck (2014 Ram 1500 ecodiesel) & we have always been forced to work with the dealer. Since landing here with Williams we have never had to question the work being done. They’re honest, thorough and make spending money feel like an investment rather a never ending situation. We never have to stress getting work done anymore, any and all of our trucks will land here always. I can’t say enough good things about them.
Frequently Asked Questions About Williams Diesel Service
What services does Williams Diesel Service offer?
Williams Diesel Service specializes in truck and diesel engine repair, including oil changes and brake service.
Where is Williams Diesel Service located?
Williams Diesel Service is located at 5045 SW 1st Ln, Ocala, FL 34474, USA.
What are the business hours of Williams Diesel Service?
Williams Diesel Service is open Monday to Friday from 8:00 AM to 5:00 PM and closed on weekends.
Is Williams Diesel Service wheelchair accessible?
Yes, Williams Diesel Service has a wheelchair accessible entrance and parking available.
How can I schedule a service appointment at Williams Diesel Service?
You can schedule a service appointment online at https://ocaladiesel.com/schedule/
When was Williams Diesel Service established and who currently owns it?
Williams Diesel Service was established in 1970. Current owners Charles and Rosemarie Oliveros have been running the business since 1990.
Are there any automotive parts suppliers near Williams Diesel Service?
Yes, nearby automotive parts and accessories stores include TruckPro and Perfection Tire and Wheels, which can supply needed parts for repairs.
What nearby services can customers use in conjunction with Williams Diesel Service?
Customers can visit Auto Glass Discounters for windshield repair or DIBS for accounting services, both located nearby for convenience.
How can nearby locations help me find Williams Diesel Service?
Nearby established businesses like Ken Jones Real Estate and Dollar General can be used as landmarks to locate Williams Diesel Service easily in Ocala.
Does Williams Diesel Service have an online presence where I can learn more?
Yes, Williams Diesel Service has a website at https://ocaladiesel.com/ with information about their services and contact details.