Yanmar 2GM-3GM Seawater Pump Replacement JPR - YM08IH

Replacement seawater pump for Yanmar 2GM 3GM, 2YM 3YM engines.

This replacement pump has built-in cam (4mm) and 16mm / 5/8" water hose. It is supplied complete with the pulley.

Replaces Yanmar 128397-42500 & Yanmar 128377-42500 (2mm cam) / 121575-42000 & 721575-42702 / 128990-42500 w/out mounting bracket.

Replaces Johnson 10-24509 / 10-13337 (which does not have the bracket).

Plug & play design. Note internal parts are not the same as the Yanmar / Johnson pumps. This pump is upgraded to mechanical seal. Camless design - machined in body casing.

This is a JMP Marine part JPR - YM08 IH.

Minor Repair Kit - JSM0091Major Repair Kit - JSK0082

Parts List

JMP Part Compatible with Original Yanmar Number Johnson Number Included
Seawater Pump JPR-YM08IH 128397-42500
Minor Kit JSM0091 X
Major Kit JSK0082 X
7050-01 128397-42200 09-810B
Mechanical Seal
MCSSET0020 X 129271-42510 0.2233.010 (lip seal)
Cover Plate COV0042 X0142398000 01-42398
O-ring, End Cover ORG0052 X02173476 0.2173.476
Cover Screws (6) BOL0144
Bearing BER0054 X X03431760 0.3431.760 X
Bearing BER0054 X03431748 0.3431.748 X
Retaining Ring SNP0026 X X00370012 0.0370.012
Retaining Ring SNP0025 X00371732 0.0371.732
Shaft SHA0095
V-Pulley PUL0027