Introduction
Yanmar sea water pumps are essential components for ensuring the proper operation of marine cooling systems installed on leisure, professional and commercial vessels powered by Yanmar engines.
In modern Yanmar engines, cooling is managed through a closed-circuit system with heat exchanger, while Yanmar sea water pumps are responsible for circulating external water through the exchanger, allowing efficient heat dissipation during engine operation.
Choosing the correct sea water pumps for Yanmar engines is crucial to maintain stable operating temperatures, prevent overheating and guarantee operational continuity even under demanding marine conditions.
Compatible Yanmar sea water pumps must provide constant flow rate, mechanical reliability and corrosion resistance in saltwater environments, all of which are critical to preserving long-term cooling system efficiency.
In this section you will find a selection of Yanmar sea water pumps matched to original OEM reference codes, with detailed engine applications and associated JMP impeller codes.
JMP: JPR-YM08IH
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 2GM20F, 3GM30F, 2YM, 3YM
- Original Yanmar Pump Code: 128397-42500
- JMP Impeller Code: 7050K
JMP: JPR-YM07IP
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 2GML, 2GM20VE, 2GM20, 2GM20C, 3GMD, 3GMLE, 3GM30VE, 3GM30B, 3GM30C
- Original Yanmar Pump Code: 128270-42002 (previous 128270-42000, 128270-42001)
- JMP Impeller Code: 7001K
JMP: JPR-YM04JHA
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 4JH3-THE, 4JH3-DTE, 4JH3E, 4JH3CE, 4JH3CE1, 4JH3-TE, 4JH3-TCE, 3JH3E, 3JH3E (EPA), 3JH3CE, 4JH3-TE-YEU, 4JH3-DTE (YEU), 3JH3E-YEU-E, 4JH4-TE, 4JH4-THE, 4JH4-HTE1
- Original Yanmar Pump Code: 129670-42513
- JMP Impeller Code: 7100K
JMP: JPR-YM04JHB
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 4JH5E, 3JH4E, 4JH4E, 4JH4AE, 3JH5E, 4JH45, 4JH57, 4JH80, 4JH110
- Original Yanmar Pump Code: 129271-42502
- JMP Impeller Code: 7100K
JMP: JPR-YM06LPA
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 6LP-DTE, 6LP-STE, 6LPA-STP2
- Original Yanmar Pump Code: 119773-42502
- JMP Impeller Code: 7136K
JMP: JPR-YM06LPB
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 6LP-DTE, 6LP-STE, 6LPA-STP2
- Original Yanmar Pump Code: 119773-42652
- JMP Impeller Code: 7136K
JMP: JPR-YM06LY2
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 6LY2-ST, 6LY2-STVY, 6LY2-WST, 6LY2-WDTZY, 6LY2M-WDT, 6LYA-STP, 6LYA-STE, 6LYA-UTE, 6LY2-STE, 6LY2A-STP, 6LY2A-UTP
- Original Yanmar Pump Code: 119574-42502
- JMP Impeller Code: 7376K
JMP: JPR-YM06LY3
- Product: Sea Water Pump
- Application: Yanmar
- Compatible Engines: 6LY3-ETP, 6LY3-STP, 6LY3-UTP, 6LY3-STC, 6LY3-UTC, 6LY3-ETP 24, 6LY3-STP 24, 6LY3-UTP 24
- Original Yanmar Pump Code: 119578-42501
- JMP Impeller Code: 7376K
JMP: JPR-SC50IF
- Product: Sea Water Pump
- Application: Scania (Scania base engine on Yanmar Marine)
- Compatible Engines: 6SY-6YP720, 8SY-STP900
- Shaft Type: Tapered
- Port Type: 2" flange
- Original Scania Pump Code: 165000-36440
- JMP Impeller Code: 8301K
Yanmar Sea Water Pumps: Reliability and Operational Continuity
Choosing the correct Yanmar sea water pumps is essential to ensure the efficiency of marine cooling systems installed on leisure, commercial and professional vessels.
Compatible Yanmar sea water pumps are designed to deliver constant flow rate, mechanical reliability and corrosion resistance in demanding saltwater environments, helping to maintain stable operating temperatures and prevent overheating.
All sea water pumps for Yanmar engines listed in this section are matched to original OEM reference codes, with clear indication of compatible engine models and corresponding JMP impeller codes.
For technical assistance or to verify compatibility with your specific Yanmar engine, please contact our technical department for dedicated support.