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Over 50 years of Trusted Marine Service

Yanmar Engine Maintenance Parts

Yanmar Engine Maintenance Parts

Yanmar engine maintenance parts are essential service components used to keep Yanmar marine diesel engines running efficiently and reliably. These parts are typically replaced during scheduled maintenance intervals and help maintain proper fuel delivery, lubrication, and cooling system performance. 

Key Maintenance Parts

Common Yanmar engine maintenance parts include:

  • Engine Oil Filters – remove contaminants from engine oil to protect internal components.

  • Fuel Filters – filter debris and water from diesel fuel before it reaches injectors.

  • Air Filters / Air Cleaner Elements – ensure clean airflow for proper combustion.

  • Seawater Pump Impellers – circulate cooling water through the engine cooling system.

  • Drive Belts / V-Belts – power alternators, water pumps, and other accessories.

  • O-Rings and Gaskets – maintain leak-free seals between engine components.

  • Anodes (zincs) – protect the engine cooling system from corrosion.

  • Thermostats and seals – regulate engine operating temperature.

Compatible Engines / Applications

Maintenance parts are available for a wide range of Yanmar marine diesel engines, including:

  • GM Series – 1GM10, 2GM20, 3GM30

  • YM Series – 2YM15, 3YM20, 3YM30

  • JH Series – 3JH, 4JH, 4JH4, 4JH5

  • LH Series – 4LH engines

  • LY Series – 6LY marine engines

These engines are commonly installed in sailboats, cruisers, fishing vessels, and commercial marine applications.

Function

Routine replacement of maintenance parts helps ensure:

  • Proper engine lubrication and cooling

  • Clean fuel delivery to injectors

  • Improved engine efficiency and reliability

  • Reduced risk of unexpected breakdowns

Regular service using correct maintenance parts helps extend engine life and maintain peak performance.

⚠️ Fitment Tip:
Always confirm compatibility using the engine model and serial number. Yanmar maintenance parts and service kits are engine-specific, and the correct components depend on the exact engine model and configuration.

Filters

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Yanmar Elbow Gasket A 128370-13201

$7.28 - $7.28
$7.28
$7.28 - $7.28
$7.28
Out of stock

Yanmar OEM elbow gasket (Type A) for Yanmar marine diesel engines. Direct OEM replacement for exhaust or coolant elbow sealing. Match by part numbe...

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$7.28 - $7.28
$7.28
$7.28 - $7.28
$7.28
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Sold out

Yanmar Joint 104214-13580

$67.42 - $67.42
$67.42
$67.42 - $67.42
$67.42
Out of stock

The Yanmar 104214-13580 Joint is a genuine OEM exhaust mixing elbow coupler / threaded joiner used to connect the upper and lower mixing elbow sect...

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$67.42 - $67.42
$67.42
$67.42 - $67.42
$67.42
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Yanmar O-Ring D65.6x3.53mm 128990-44100

$7.91 - $7.91
$7.91
$7.91 - $7.91
$7.91
Out of stock

Yanmar OEM O-ring, D65.6×3.53mm, for Yanmar marine diesel engines. Direct OEM replacement. Match by part number and engine model before ordering. O...

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$7.91 - $7.91
$7.91
$7.91 - $7.91
$7.91
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Yanmar Seawater Pump Impeller Kit 128990-42570

$26.83 - $26.83
$26.83
$26.83 - $26.83
$26.83
Only 1 left!

The Yanmar 128990-42570 Seawater Pump Impeller Kit is a genuine Yanmar cooling-pump service kit used on select GM and YM series marine diesel engin...

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$26.83 - $26.83
$26.83
$26.83 - $26.83
$26.83
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Yanmar 165000-69590 Oil Filter Element

$78.99 - $78.99
$78.99
$78.99 - $78.99
$78.99
Out of stock

The Yanmar 165000-69590 Oil Filter Element is a genuine OEM-style engine oil filter cartridge designed for select Yanmar marine diesel engines. It ...

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$78.99 - $78.99
$78.99
$78.99 - $78.99
$78.99
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Sold out

Yanmar Impeller 124223-42092 - OEM Raw Water Pump Impeller

$62.58 - $62.58
$62.58
$62.58 - $62.58
$62.58
Out of stock

Genuine OEM Yanmar impeller (part number 124223-42092) designed for reliable raw water cooling system performance. This factory-spec impeller ensur...

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$62.58 - $62.58
$62.58
$62.58 - $62.58
$62.58
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Sold out

Yanmar Marine Engine Thermostat - OEM Cooling System Component

$128.70 - $128.70
$128.70
$128.70 - $128.70
$128.70
Out of stock

OEM Thermostat for Yanmar Marine Engines This genuine Yanmar thermostat is designed for marine engines, regulating coolant temperature to maintain ...

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$128.70 - $128.70
$128.70
$128.70 - $128.70
$128.70
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Yanmar Pump Impeller 119593-42202 - Special Order

$138.00 - $138.00
$138.00
$138.00 - $138.00
$138.00

The Yanmar 119593-42202 Pump Impeller is a replacement seawater/raw-water pump impeller for compatible Yanmar marine diesel engines, including 6LY-...

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$138.00 - $138.00
$138.00
$138.00 - $138.00
$138.00

Yanmar Fuel Feed Pump Assembly 129158-52101 - Special Order

$280.30 - $280.30
$280.30
$280.30 - $280.30
$280.30

The Yanmar 129158-52101 Fuel Feed Pump Assembly is a diesel fuel supply/lift pump used on compatible Yanmar marine and industrial diesel engines. I...

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$280.30 - $280.30
$280.30
$280.30 - $280.30
$280.30

Yanmar Filter Bracket 119593-35161 - Marine Diesel Engine

$81.66 - $81.66
$81.66
$81.66 - $81.66
$81.66
Only 2 left!

Yanmar 119593-35161 is a genuine OEM filter bracket used in selected Yanmar marine diesel lubricating oil cooler and filter assemblies. Yanmar part...

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$81.66 - $81.66
$81.66
$81.66 - $81.66
$81.66

Yanmar Rope Seal Cord 196350-03910

$4.64 - $4.64
$4.64
$4.64 - $4.64
$4.64
Only 1 left!

Yanmar OEM rope seal cord for Yanmar marine diesel engines. Direct OEM replacement for shaft or component sealing applications. Match by part numbe...

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$4.64 - $4.64
$4.64
$4.64 - $4.64
$4.64

Yanmar Engine Gasket 23414-080000

$1.48 - $1.48
$1.48
$1.48 - $1.48
$1.48
14 in stock

Yanmar OEM engine gasket for Yanmar marine diesel engines. Direct OEM replacement for leak-free sealing between mating surfaces. Match by part numb...

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$1.48 - $1.48
$1.48
$1.48 - $1.48
$1.48

Yanmar Engine Gasket X0506590-01

$9.40 - $9.40
$9.40
$9.40 - $9.40
$9.40
Only 2 left!

Yanmar X0506590-01, also listed as 05-06-590, is a genuine OEM sea water pump impeller O-ring used to seal the raw water pump cover on a wide range...

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$9.40 - $9.40
$9.40
$9.40 - $9.40
$9.40

Yanmar Cooler Gasket 127881-18180

$27.78 - $27.78
$27.78
$27.78 - $27.78
$27.78
Only 2 left!

Yanmar OEM cooler gasket for Yanmar marine diesel engines. Direct OEM replacement for heat exchanger or oil cooler sealing. Match by part number an...

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$27.78 - $27.78
$27.78
$27.78 - $27.78
$27.78

Yanmar Spacer 128990-44110

$46.76 - $46.76
$46.76
$46.76 - $46.76
$46.76
Only 2 left!

The  Yanmar Spacer 128990-44110  is a genuine OEM component designed specifically for the cooling systems of Yanmar marine diesel engines. It is mo...

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$46.76 - $46.76
$46.76
$46.76 - $46.76
$46.76

Yanmar Pump Cover Gasket 129150-01881

$3.26 - $3.26
$3.26
$3.26 - $3.26
$3.26
Only 3 left!

Yanmar OEM pump cover gasket for Yanmar marine diesel engines. Direct OEM replacement. Match by part number and engine model before ordering. OEM Y...

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$3.26 - $3.26
$3.26
$3.26 - $3.26
$3.26

Yanmar Alternator 204-213

$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00
Only 1 left!

Yanmar OEM alternator for Yanmar marine diesel engines. Direct OEM replacement for the charging system. Match by part number and engine model befor...

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$320.00 - $320.00
$320.00
$320.00 - $320.00
$320.00

Yanmar OEM Fuel Filter Strainer Element 1GM 2GM 3GM Series 165000-13840

$18.65 - $18.65
$18.65
$18.65 - $18.65
$18.65
Only 1 left!

The Yanmar 165000-13840 is a genuine OEM fuel filter strainer element for select Yanmar marine diesel engines. It is used in the fuel strainer asse...

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$18.65 - $18.65
$18.65
$18.65 - $18.65
$18.65

Yanmar OEM Coolant Filler Cap 2YM 3YM 3JH 4JH Series 129673-44131

$65.94 - $65.94
$65.94
$65.94 - $65.94
$65.94
Only 1 left!

The Yanmar 129673-44131 is a genuine OEM coolant filler cap used on select Yanmar marine diesel cooling systems. Current Yanmar catalog references ...

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$65.94 - $65.94
$65.94
$65.94 - $65.94
$65.94

Yanmar OEM Silencer Gasket Intake 4LH Series 128300-13230

$22.30 - $22.30
$22.30
$22.30 - $22.30
$22.30
Only 1 left!

The Yanmar 128300-13230 is a genuine OEM silencer gasket for select 4LH-series marine diesel engines. Current Yanmar parts references identify this...

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$22.30 - $22.30
$22.30
$22.30 - $22.30
$22.30

Yanmar OEM Cover Gasket 3JH Series 123325-35140

$4.98 - $4.98
$4.98
$4.98 - $4.98
$4.98
Only 1 left!

Yanmar OEM cover gasket (part #123325-35140) for Yanmar 3JH-series marine diesel engines. Genuine replacement gasket for the inspection cover or ti...

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$4.98 - $4.98
$4.98
$4.98 - $4.98
$4.98

Yanmar OEM Bonnet Gasket Valve Cover 121450-11310

$13.60 - $13.60
$13.60
$13.60 - $13.60
$13.60
Only 1 left!

The Yanmar 121450-11310 is a genuine OEM bonnet / valve cover gasket for select Yanmar marine diesel engines. Current parts references identify thi...

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$13.60 - $13.60
$13.60
$13.60 - $13.60
$13.60

Yanmar OEM Exhaust Manifold Gasket 4-Inch 119175-33380

$10.75 - $10.75
$10.75
$10.75 - $10.75
$10.75
Only 1 left!

Yanmar OEM exhaust manifold gasket (part #119175-33380), 4-inch bore. Genuine replacement gasket for the exhaust manifold connection on Yanmar mari...

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$10.75 - $10.75
$10.75
$10.75 - $10.75
$10.75

Yanmar OEM Exhaust Manifold Gasket 4-Inch 119175-33370

$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00
Only 1 left!

Yanmar OEM exhaust manifold gasket (part #119175-33370), 4-inch bore. Genuine replacement gasket for the exhaust manifold connection on Yanmar mari...

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$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00
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Yanmar OEM Fuel Filter Element 8LV Series 119798-55110

$241.88 - $241.88
$241.88
$241.88 - $241.88
$241.88
Out of stock

The Yanmar 119798-55110 is a genuine OEM fuel filter element for select 8LV series marine diesel engines. Current parts references identify it as E...

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$241.88 - $241.88
$241.88
$241.88 - $241.88
$241.88
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Yanmar Seawater Pump Impeller Kit 119574-42530

$91.18 - $91.18
$91.18
$91.18 - $91.18
$91.18
Only 2 left!

The Yanmar 119574-42530 Impeller Kit is a seawater pump service kit for select Yanmar 6LY-series marine diesel engines. It is used to service the r...

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$91.18 - $91.18
$91.18
$91.18 - $91.18
$91.18

Yanmar Seawater Pump Impeller Kit 119578-42750

$167.77 - $167.77
$167.77
$167.77 - $167.77
$167.77
Only 1 left!

The Yanmar 119578-42750 Impeller Kit is a genuine-style seawater pump service kit for select Yanmar marine diesel engines, most commonly the 6LY3 s...

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$167.77 - $167.77
$167.77
$167.77 - $167.77
$167.77

Yanmar Impeller Kit 119773-42640 - 6LP 6LPA Seawater Pump Service Kit

$77.16 - $77.16
$77.16
$77.16 - $77.16
$77.16
6 in stock

The Yanmar 119773-42640 Impeller Kit is a complete seawater pump service kit designed specifically for Yanmar 6LP and 6LPA marine diesel engines. T...

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$77.16 - $77.16
$77.16
$77.16 - $77.16
$77.16

WIX Oil Filter 51064 – Yanmar Diesel (Replaces Baldwin B227)

$22.58 - $22.58
$22.58
$22.58 - $22.58
$22.58
Only 1 left!

WIX Oil Filter 51064 – Yanmar Diesel (Replaces Baldwin B227)The WIX 51064 is a full-flow spin-on lubricating oil filter commonly used in Yanmar die...

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$22.58 - $22.58
$22.58
$22.58 - $22.58
$22.58

WIX Oil Filter 51358 – Yanmar Marine Diesel Engines

$25.64 - $25.64
$25.64
$25.64 - $25.64
$25.64
Only 1 left!

WIX Oil Filter 51358 – Yanmar Marine Diesel EnginesThe WIX 51358 is a full-flow spin-on engine oil filter designed for select Yanmar marine diesel ...

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$25.64 - $25.64
$25.64
$25.64 - $25.64
$25.64

WIX Oil Filter 57254 - Replaces Yanmar 119770-90620

$62.55 - $62.55
$62.55
$62.55 - $62.55
$62.55
Only 1 left!

WIX Oil Filter — 57254 (Replaces Yanmar 119770-90620) The WIX 57254 Oil Filter is a heavy-duty spin-on engine oil filter commonly used as a re...

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$62.55 - $62.55
$62.55
$62.55 - $62.55
$62.55

Yanmar Impeller 127610-42270

$65.53 - $65.53
$65.53
$65.53 - $65.53
$65.53
Only 2 left!

OEM Yanmar impeller engineered for reliable cooling system performance in marine diesel engines. Precision-manufactured to exact specifications for...

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$65.53 - $65.53
$65.53
$65.53 - $65.53
$65.53

Yanmar Water Pump Impeller 128176-42071 - 1GM10 Marine Diesel Engine

$41.20 - $41.20
$41.20
$41.20 - $41.20
$41.20
Only 4 left!

Genuine Yanmar Water Pump Impeller for 1GM10 Engines - Professional Marine Component OEM water pump impeller designed for Yanmar 1GM10 marine diese...

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$41.20 - $41.20
$41.20
$41.20 - $41.20
$41.20

Zinc Pencil Anode Plug ED0090802150-S Lombardini ZF 1/4 BSPT

$58.78 - $58.78
$58.78
$58.78 - $58.78
$58.78
Only 1 left!

The ED0090802150-S is a zinc anode plug used as a pencil-anode style corrosion-protection part in marine engine cooling systems. Current references...

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$58.78 - $58.78
$58.78
$58.78 - $58.78
$58.78

Yanmar OEM Zinc Anode Screw 27210-200300

$4.88 - $4.88
$4.88
$4.88 - $4.88
$4.88
Only 1 left!

The Yanmar 27210-200300 is a genuine OEM zinc anode screw used as an internal engine corrosion-protection part on select Yanmar marine diesel appli...

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$4.88 - $4.88
$4.88
$4.88 - $4.88
$4.88

Yanmar Thermostat Gasket 119773-49570 - Marine Diesel Engine

$6.98 - $6.98
$6.98
$6.98 - $6.98
$6.98
Only 3 left!

Genuine Yanmar Thermostat Gasket - Professional Marine Engine Component OEM thermostat gasket designed for Yanmar marine diesel engines. Precision...

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$6.98 - $6.98
$6.98
$6.98 - $6.98
$6.98

Yanmar Thermostat Gasket 129150-49811 - Marine Diesel Engine

$3.59 - $3.59
$3.59
$3.59 - $3.59
$3.59
Only 2 left!

Genuine Yanmar Thermostat Gasket - Professional Marine Engine Component OEM thermostat gasket designed for Yanmar marine diesel engines. Precision-...

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$3.59 - $3.59
$3.59
$3.59 - $3.59
$3.59

Yanmar Thermostat 119773-49550 - 70°C Marine Diesel Engine

$157.22 - $157.22
$157.22
$157.22 - $157.22
$157.22
Only 4 left!

Genuine Yanmar 70°C Thermostat - Professional Marine Diesel Engine Component OEM thermostat designed for Yanmar marine diesel engines with a 70°C ...

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$157.22 - $157.22
$157.22
$157.22 - $157.22
$157.22

Yanmar Thermostat 105582-49200 - Marine Diesel Engine

$65.85 - $65.85
$65.85
$65.85 - $65.85
$65.85
Only 4 left!

Genuine Yanmar Thermostat - Professional Marine Engine Component OEM thermostat designed for Yanmar marine diesel engines. Precision-engineered tem...

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$65.85 - $65.85
$65.85
$65.85 - $65.85
$65.85

Yanmar Metal Gray Marine Engine Paint - OEM Touch-Up Paint

$68.35 - $68.35
$68.35
$68.35 - $68.35
$68.35
Only 2 left!

Yanmar Metal Gray Marine Engine Paint This genuine Yanmar metal gray paint is specifically formulated for marine engines, providing authentic color...

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$68.35 - $68.35
$68.35
$68.35 - $68.35
$68.35

Yanmar OEM Internal Engine Anode 27210-200200

$10.56 - $10.56
$10.56
$10.56 - $10.56
$10.56
Only 3 left!

The Yanmar 27210-200200 is a genuine OEM sacrificial anode designed for Yanmar marine diesel engines, providing cathodic protection for internal co...

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$10.56 - $10.56
$10.56
$10.56 - $10.56
$10.56

Yanmar OEM Internal Engine Anode 120650-18530

$44.68 - $44.68
$44.68
$44.68 - $44.68
$44.68
Only 4 left!

Genuine OEM Yanmar sacrificial anode (part number 120650-18530) designed to protect your engine's cooling system from galvanic corrosion. This fact...

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$44.68 - $44.68
$44.68
$44.68 - $44.68
$44.68

Yanmar OEM Internal Engine Anode 120650-13420

$28.16 - $28.16
$28.16
$28.16 - $28.16
$28.16
Only 3 left!

The Yanmar 120650-13420 is a genuine OEM sacrificial anode designed for Yanmar marine diesel engines, providing cathodic protection for internal co...

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$28.16 - $28.16
$28.16
$28.16 - $28.16
$28.16

Yanmar V-Belt- 27" Marine Diesel Engine Drive Belt

$27.18 - $27.18
$27.18
$27.18 - $27.18
$27.18
Only 2 left!

Yanmar V-Belt 27" - OEM Marine Diesel Engine Drive BeltGenuine Yanmar V-belt engineered for reliable power transmission in marine diesel engines. T...

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$27.18 - $27.18
$27.18
$27.18 - $27.18
$27.18

Yanmar Fuel Filter – 129574-55711

$66.58 - $66.58
$66.58
$66.58 - $66.58
$66.58
Only 1 left!

Yanmar OEM Fuel Filter – 129574-55711Genuine Yanmar OEM fuel filter with water separation for marine diesel engines. Removes contaminants and water...

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$66.58 - $66.58
$66.58
$66.58 - $66.58
$66.58

Yanmar OEM Fuel Filter Water Separator Assembly 41650-502330-12

$85.21 - $85.21
$85.21
$85.21 - $85.21
$85.21
12 in stock

The Yanmar 41650-502330-12 is a genuine OEM fuel filter / water separator assembly for select Yanmar marine diesel applications. Current parts refe...

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$85.21 - $85.21
$85.21
$85.21 - $85.21
$85.21
Sold out

Yanmar Pump Gear 119773-42520 - Marine Diesel Engine

$187.29 - $187.29
$187.29
$187.29 - $187.29
$187.29
Out of stock

Yanmar 119773-42520 is a genuine OEM gear pump / sea water pump drive gear used in selected Yanmar marine diesel cooling-system assemblies. Current...

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$187.29 - $187.29
$187.29
$187.29 - $187.29
$187.29
Sold out

Yanmar Fuel Filter ED0021752880-S - Kohler Marine Diesel Engine

$36.77 - $36.77
$36.77
$36.77 - $36.77
$36.77
Only 1 left!

Genuine Yanmar Fuel Filter for Kohler Engines - Professional Marine Component OEM fuel filter designed for Kohler marine diesel engines. High-effic...

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$36.77 - $36.77
$36.77
$36.77 - $36.77
$36.77