Jay Tass
July 30, 2026 · Experience July 30, 2026
The go-to diesel experts
No one else in Key Largo knows marine engines like these folks. Had me back on the water in two days. Excellent work.
Florida Keys Marine Diesel, LLC.
4.2Great · 15 reviews · 15 verifiedClaimed profile
15 reviews
- Verified customer
- Verified customer
Justin Lawson
June 19, 2026 · Experience June 19, 2026
Decent service, hard to reach
The work was fine, but getting someone on the phone to schedule an appointment was a nightmare. They need a better front desk.
- Verified customer
Louis Monacello
June 6, 2026 · Experience June 6, 2026
Solid repair work but pricey
They really know their diesels. Fixed the injector issue on my engine perfectly, though the final bill was definitely on the high side.
- Verified customer
Timothy Joley
May 3, 2026 · Experience May 3, 2026
Work took way too long
They had my boat for two weeks for a simple fuel pump issue. No updates until I called to complain repeatedly.
- Verified customer
Emily Hartman
February 28, 2026 · Experience February 28, 2026
Fixed my engine issue fast
I was stuck with a boat that wouldn't start. They came out, towed it, and had it running by the weekend. Highly recommend.
- Verified customer
Gregory Sandoval
January 4, 2026 · Experience January 4, 2026
Excellent diesel engine maintenance
Brought my boat in for service and everything was handled with care. They checked all the fluids and filters, very detail-oriented.
- Verified customer
Zachary Pruitt
December 12, 2025 · Experience December 12, 2025
Good service, just need more techs
Had a recurring engine alarm. They diagnosed it correctly after some digging. Took a little longer than expected, but the fix held.
- Verified customer
Max Lane
September 19, 2025 · Experience September 19, 2025
Poor follow up on service
Left my engine running rougher than when I brought it in. When I called, they wanted to charge me another diagnostic fee.
- Verified customer
Jack Doan
August 13, 2025 · Experience August 13, 2025
Professional engine diagnostics
Took my marine diesel in for an inspection. The technician, Bob, was very thorough and gave me a clear list of needed repairs.
- Verified customer
Jason Ensey
July 10, 2025 · Experience July 10, 2025
Quality repairs you can trust
They explain exactly what is wrong and don't try to upsell you on stuff you don't need. Honest mechanics in a tough trade.
- Verified customer
Deborah Barnhart
June 4, 2025 · Experience June 4, 2025
Fantastic service for my diesel
Responsive and fair pricing. I appreciated the advice they gave me on keeping my engine running smoothly in the salt air.
- Verified customer
Thomas Morgan
May 22, 2025 · Experience May 22, 2025
Top level engine knowledge
These guys saved my season. Had a major engine fault and they repaired it right the first time. Won't take my boat anywhere else.
- Verified customer
Greg Leathers
March 26, 2025 · Experience March 26, 2025
Expertise makes all the difference
Took my diesel engine to two other shops before these guys. They found the real problem in ten minutes. Really impressed.
- Verified customer
Sagoingne
October 11, 2024 · Experience October 11, 2024
Professionalism at its best
They were clear about the timeline and the costs. My boat engine is performing better than it has in years. Great job.
- Verified customer
Carol Ivanov
October 8, 2024 · Experience October 8, 2024
Reliable and highly skilled
Best marine diesel shop in the area. Friendly, knowledgeable, and they clearly take pride in getting the job done properly.