Frequently Asked Questions
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What type of service does Marathon Diesel Repair provide? ►
We specialize in Marine Diesel engines — parts, sales, and service.
Which marine engines does Marathon Diesel service? ►
We specialize in Yanmar marine diesel engines and Suzuki Marine outboard engines.
Do you work on gas inboard engines or diesel pickup trucks? ►
No — we focus exclusively on marine diesel and Suzuki Marine outboard engines.
Are you an authorized Suzuki Marine dealer? ►
Yes, Marathon Diesel Repair is an authorized Suzuki Marine dealer.
What are your labor rates? ►
Our labor rate is $190.00 per hour. Mobile service calls add a $55.00 service call fee, plus travel time at the same $190/hr rate, and $0.89 per mile each way.
What are your hours of operation? ►
Monday through Friday, 8:00am to 5:00pm. We close for lunch from 12:00pm to 1:00pm.
Where is Marathon Diesel Repair located? ►
We are located at 1350 Oceanview Avenue, Marathon, FL 33050.
Can you access the shop by water? ►
Yes — we are located at the end of the canal between Pancho’s Fuel Dock and Burdines Marina.
Do you offer mobile service? ►
Yes, we are fully mobile and can come to your boat at your home, marina, or anywhere in the Keys.
Are you fully insured? ►
Yes, Marathon Diesel Repair carries full insurance and liability coverage.
Do you have the largest Yanmar parts inventory in the Keys? ►
Yes — we carry the largest Yanmar parts inventory in the Florida Keys, plus a full stock of Suzuki Marine parts.
What is the Yanmar engine warranty? ►
Light-duty commercial: 12 months or 1,000 hours. Pleasure boats: 24 months.
What horsepower range does Yanmar cover? ►
Yanmar marine engines in the USA range from 9HP to 750HP, with medium-speed commercial engines up to 6,100HP.
What oil should I use in my Yanmar diesel engine? ►
Yanmar recommends 15W-40 diesel engine oil for most engines. Always verify the specific requirement in your engine manual.
How often does a Yanmar diesel need maintenance? ►
Periodic maintenance is critical for performance and longevity. Suggested service intervals are at 50, 250, 500, and 750 operating hours.
Can I install a new Yanmar engine myself? ►
No — Yanmar requires the selling dealer to handle installation and perform the final inspection.
Can I buy a Yanmar engine direct from Yanmar? ►
No, Yanmar sells exclusively through authorized regional distributors and dealers like Marathon Diesel Repair.
Do you sell Yanmar commercial marine engines? ►
Yes, we are an authorized Commercial Marine dealer and can source Yanmar commercial engines.
Do you have a printed parts catalog? ►
We do not provide a public parts catalog. Contact us directly and Luis will help you find the right part.
How do I contact you to buy a part or engine? ►
Use the contact form on this site, or call us at (305) 743-7116. Ask for Luis Garcia.