What Marine Diesel Spare Parts Should You Keep Aboard? #

The exact spare parts you should carry depend on your engines, generators, vessel and the type of boating you do.

However, carrying several common maintenance items can be extremely useful when operating away from your home marina.

Marine Diesel Fuel Filters #

Consider carrying replacement:

  • Primary fuel-filter elements
  • Fuel/water separator elements
  • Secondary engine-mounted fuel filters

Fuel restrictions are a common cause of diesel-engine performance problems, especially if contaminated fuel is encountered.

Raw-Water Impellers #

A failed impeller can quickly cause overheating.

Carry the correct replacement impeller for each engine and generator aboard the vessel.

If the propulsion engines and generator use different pumps, they may require different impellers.

Engine and Generator Belts #

Belts can fail from age, heat or wear.

Carry the correct spare belts and confirm they actually match the installed equipment.

Appropriate Fluids #

Depending on the trip and storage available, useful fluids may include:

  • Engine oil
  • Transmission fluid
  • Coolant

Always use the specifications required by the equipment manufacturer.

Additional Useful Items #

Depending on the vessel, consider carrying:

  • Hose clamps
  • Selected fuses
  • Replacement seals for fuel filters
  • Basic electrical connectors
  • Manufacturer-specific emergency spares

Label Everything #

Clearly label spare parts with the engine or generator they fit.

A spare filter is not very useful if nobody aboard knows which engine it belongs to.

All Tech Diesel provides Marine Diesel Engine Maintenance throughout Southwest Florida.

Want Help Preparing Your Vessel? #

REQUEST A PREVENTATIVE MAINTENANCE INSPECTION

Was This Helpful?
Scroll to Top