65 Garvin Road, West Bay, Grand Cayman ☎ 345.949.3555 sales@marinediesel.ky

Marine Engine
Repair & Service
Grand Cayman

Inboard diesel and sterndrive engines — all makes and models. From routine maintenance to complete engine overhauls, we keep Cayman's fleet running. Looking for a new engine? →

Everything Your
Engine Needs

Routine Service & Oil Changes

Scheduled maintenance keeps your marine diesel running efficiently. Oil, filters, impellers, belts, zincs — done right the first time.

Full Engine Overhauls

When your engine needs more than a service, our team performs complete top-end and bottom-end overhauls on all major inboard diesel engines.

Engine Diagnostics

Computer diagnostics on inboard diesel and sterndrive engines. We pinpoint problems fast — saving you time, money, and frustration on the water.

Diesel Injection & Fuel Systems

Injector testing, fuel system diagnostics, high-pressure pump servicing, and common-rail repair — specialist diesel fuel system work done in-house.

Sterndrive & I/O Service

MerCruiser, Volvo Penta, OMC — complete sterndrive service, bellows replacement, outdrive repairs and seasonal preparation.

Dock-Side Service at Our West Bay Workshop

MDI's workshop is directly on the water with a large slip and full bulkhead dock space. Motor in, tie up, and we'll handle the work — in the water or pulled up into the yard if the job calls for it. No trailer, no hauling.

Mobile & Offshore Marine Service

Can't move the boat? We come to you. Our mobile team services vessels at your marina berth, private dock, mooring, or commercial slip — anywhere in Grand Cayman, Little Cayman, or Cayman Brac. Same diagnostics, same parts, same techs.

Parts Department

Waiting on a part flown in from Miami shouldn't be what keeps your vessel off the water. MDI's parts department carries a broad stock of marine parts, accessories, and supplies — engine spares, marine hardware, electrical components, and general boat accessories.

As Cayman's only authorised Yanmar dealer we also hold an extensive inventory of genuine Yanmar OEM parts on-island. Whatever your vessel needs, chances are we have it — or we know exactly where to get it.

Can't find what you need?
Call Us: 345.949.3555

If we don't have it in stock, we'll get it.

Genuine Yanmar OEM Parts
Oil & Fuel Filters
Impellers & Pump Kits
Zincs & Anodes
Belts & Hoses
Gaskets & Seals
Starter Motors
Alternators
Heat Exchangers
Thermostats
Fuel Injectors
Engine Mounts
All other brands sourced to order — Volvo Penta, Cummins, Caterpillar, MAN, MTU, MerCruiser, John Deere and more. Call for availability and lead times.
Brands We Service
Yanmar Volvo Penta MAN Caterpillar Cummins MerCruiser John Deere Detroit Diesel MTU Perkins All Other Brands

Book Your
Engine Service

Don't let an engine issue keep you off the water. Fill in your details and our team will review your request and respond within one business day with a full assessment and quote.

The more detail you give us about your engine and the issue, the faster we can help — so include make, model, symptoms, anything relevant.

  • ⚙️
    Diesel inboard specialist technicians
  • 🔧
    Full overhauls to minor tune-ups
  • 📍
    On-site or offshore service available
  • ⏱️
    Response within 1 business day
  • 100% Caymanian-owned, locally operated since 1985
Urgent?
Call Now: 345.949.3555
Considering a Replacement?
Browse New Engines →

Authorised Yanmar dealer — new marine diesel inboards and MAN Marine diesels.

Request Engine Service
We'll respond within 1 business day with a quote.

🔒 Your details are only used to contact you about this enquiry.

Enquiry Received!

We'll review your details and respond within one business day. Urgent? Call 345.949.3555.

Marine Engine Repair
FAQs

Can I bring my boat directly to MDI's dock for service?
Yes. Our West Bay workshop is directly on the water, with a large slip and full bulkhead dock space for customer vessels. You can motor in, tie up, and we'll handle the work — in the water or pulled up into the on-water yard if the job requires it. No trailering and no off-island trips required.
Do you offer mobile marine engine service in the Cayman Islands?
Yes. Our mobile team services vessels at your marina berth, private dock, mooring, or commercial slip — anywhere across Grand Cayman, Little Cayman, or Cayman Brac. Diagnostics, routine service, repairs, and emergency call-outs all available on-site. Call 345.949.3555 to arrange a visit.
Where is MDI located in Grand Cayman?
MDI's workshop is at 65 Garvin Road, West Bay, Grand Cayman — directly on the water. The facility includes a large slip, full bulkhead dock, and an on-water yard for trailered vessels. Open Monday–Friday, 7:00AM–5:00PM.
What marine engine brands do you service?
We service all major marine diesel brands including Yanmar, Volvo Penta, MAN, Caterpillar, Cummins, MerCruiser, MTU, Detroit Diesel, Perkins, John Deere, and all other inboard diesel makes.
Do you offer on-site marine engine repair in the Cayman Islands?
Yes. Our team provides on-site engine service at your marina berth, private dock, or commercial vessel — anywhere in Grand Cayman, Little Cayman, or The Brac.
Do you service inboard diesel engines?
Yes. Inboard diesel is our core speciality — from routine oil changes and filter service to complete engine overhauls on all major brands.
How long does a marine engine service take?
Routine service is typically completed same day or next day. Diagnostics and fault repairs depend on parts availability and the nature of the issue — our team will provide a clear timeline after initial assessment.
Do you perform complete marine engine overhauls?
Yes. We perform complete top-end and bottom-end overhauls on all major inboard diesel engines at our West Bay workshop in Grand Cayman.