Yanmar 1GM10 Parts Guide: Service Kits, Filters & Impellers Explained

If you own a Yanmar 1GM10, keeping it maintained is essential for reliability. This small marine diesel engine is simple, strong and long-lasting, but only when the right service parts are replaced on time.

In this guide, we explain the most important Yanmar 1GM10 parts, including service kits, fuel filters, oil filters and impeller kits.

👉 View all parts here: Yanmar 1GM10 Parts Category

Essential Yanmar 1GM10 Service Parts

The most important parts for regular maintenance are:

• Impeller: Keeps the cooling water flowing through the engine.
• Oil filter: Keeps engine oil clean and protects internal parts.
• Fuel filter: Stops dirt and water from reaching the fuel system.
• Service kit: The easiest all-in-one option for regular maintenance.

Yanmar 1GM10 Service Kits

A service kit is the easiest way to maintain your engine, as it includes all essential parts in one package. Most kits include a fuel filter, oil filter, impeller and seals, giving you everything needed for a full service.

👉 Aftermarket service kit: Yanmar 1GM10 Service Kit Aftermarket

👉 OEM service kit: Yanmar 1GM10 Service Kit OEM

Tip: A complete service kit is usually the best choice if you want to replace all standard maintenance parts at once.

Yanmar 1GM10 Fuel Filter

The fuel filter protects your Yanmar 1GM10 from dirt, water and contamination in the fuel. A clogged fuel filter can cause hard starting, power loss or irregular running.

👉 OEM fuel filter: Yanmar Fuel Filter 104500-55710 OEM

👉 Aftermarket fuel filter: Yanmar Fuel Filter 104500-55710 Aftermarket

Replace the fuel filter every season or whenever you notice fuel-related problems.

Yanmar 1GM10 Oil Filter

The oil filter keeps the engine oil clean and helps protect bearings, pistons and other internal engine parts from wear.

👉 Oil filter: Yanmar Oil Filter 119305-35170

Replace the oil filter every 100 hours or once per year.

Yanmar 1GM10 Impeller Kit

The impeller is one of the most important service parts on the Yanmar 1GM10. It pumps cooling water through the engine. If the impeller is worn, damaged or missing blades, the engine can overheat quickly.

👉 Impeller kit: Yanmar Impeller Kit 128176-42090

Inspect or replace the impeller every season, especially before longer trips.

OEM vs Aftermarket Yanmar 1GM10 Parts

• OEM parts: Original Yanmar parts with factory fit and quality.
• Aftermarket parts: More affordable alternatives for regular service and maintenance.

For routine maintenance, both OEM and aftermarket parts can be a good choice. OEM parts are ideal when you want original Yanmar parts, while aftermarket parts are often a cost-effective option for regular servicing.

Common Maintenance Problems

• Overheating: Often caused by a worn impeller or blocked cooling system.
• Hard starting: Often caused by old fuel, air in the fuel system or a dirty fuel filter.
• Loss of power: Can be caused by fuel restriction or clogged filters.
• Smoke from exhaust: Can indicate fuel, oil or combustion issues.

Recommended Maintenance Interval

• Every season: Check or replace impeller, fuel filter and oil filter.
• Every 100 hours: Replace oil and oil filter.
• Before long trips: Check belts, hoses, fuel system and cooling system.
• Keep onboard: Spare impeller, fuel filter and basic seals.

Conclusion

Maintaining your Yanmar 1GM10 is simple when you use the right parts. A service kit, fuel filter, oil filter and impeller kit cover most regular maintenance needs and help prevent common engine problems.

👉 Browse all available parts: View Yanmar 1GM10 Parts

© 2026 MarinePartSystem (MPS)