JPR-YM06LPB Aftermarket Yanmar 6LP/6LPA-STP2 Seawater Pump 119773-42502 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket JMP Yanmar 6LP/6LPA geared seawater pump - Replacement Part Number: JPR-YM06LPB

The geared seawater-pump configuration for Yanmar 6LP and 6LPA Z-drive/sterndrive engine models. The correct OEM replacement is 119773-42652 with earlier 119773-42650/-42501/-42500 references. The 119773-42502 number shown in the supplied title belongs to ported pump JPR-YM06LPA.

⚙️ Key Features

• Bronze geared pump body

• Designed for DTZE/STZE and STZP Z-drive configurations

• Flexible-impeller positive-displacement design

• Major and minor service kits available

• Correct replacement for Yanmar 119773-42652

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Yanmar 119773-42652 → Later replacement for 119773-42650, 119773-42501 and 119773-42500 on specified geared applications

• Johnson 10-24493-01 is the original pump cross-reference

OEM / Related Numbers:

• JPR-YM06LPB

• Yanmar 119773-42652

• Yanmar 119773-42650

• Yanmar 119773-42501

• Yanmar 119773-42500

• Johnson 10-24493-01

• Major service kit: JMP JSK0129

• Minor service kit: JMP JSM0129

Aftermarket / Verified Equivalents:

• JMP Marine: JPR-YM06LPB

Important Fitment Notes:

• Title correction: OEM 119773-42502 belongs to JPR-YM06LPA, not JPR-YM06LPB.

🚤 Compatibility

Commonly used on:

• Flexible-impeller raw-water cooling systems

Typically suits:

• Engine models:

• Yanmar 6LP-DTZE and 6LP-DTZEP

• Yanmar 6LP-STZE and 6LP-STZEP

• Yanmar 6LPA-DTZE and 6LPA-DTZEP

• Yanmar 6LPA-STZE and 6LPA-STZEP

• Yanmar 6LPA-STZP2 and 6LPA-STZP3

• HP Range: Engine-rating specific; commonly approximately 250HP-315HP

• Engine Type: Yanmar 6LP/6LPA inline-six marine diesel with Z-drive/sterndrive pump configuration

• Year Range: Model-specific; confirm OEM pump 119773-42652

• Pump Configuration: Geared Z-drive type

• Original Pump Cross-Reference: Johnson 10-24493-01

🔌 Function

The seawater pump draws raw water through the intake and circulates it through the engine, heat exchanger, oil cooler, aftercooler and wet-exhaust circuit as applicable. Its flexible impeller must maintain adequate flow from idle through full load while the shaft, bearings and mechanical seal keep the drive and water sections correctly supported and separated.

Common signs of failure:

• Engine temperature rises under load or at higher RPM

• Reduced or intermittent water discharge from the exhaust

• Missing, cracked, swollen or permanently set impeller vanes

• Seawater leakage or salt tracks from the shaft seal or weep area

• Bearing noise, pulley or gear wobble, or excessive shaft movement

• Scored cover plate, worn cam or damaged pump housing reduces suction

• Internal corrosion, air leakage or blocked inlet passages cause loss of prime

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging