CM08IH Aftermarket Craftsman Seawater Pump | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket JMP Craftsman seawater pump - Catalogue Family: JPR-CM08IH(1,2,3)

A compact bronze seawater pump for Craftsman CM-series marine diesel engines. The exact JMP suffix within JPR-CM08IH(1,2,3) is selected from the engine and port orientation. It cross-references to Craftsman AA.200.90020, AA.300.90030 and AA.400.90040.

⚙️ Key Features

• Heavy-duty marine bronze pump body

• Flexible-impeller positive-displacement design

• Marine-grade non-magnetic stainless-steel shaft

• Replaceable mechanical seal, bearings, cam and wear components

• Designed to match the listed OEM mounting, rotation and connection layout

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JPR-CM08IH(1,2,3) (JMP catalogue family)

• Craftsman AA.200.90020 / AA.300.90030 / AA.400.90040 (engine-specific OEM references)

OEM / Related Numbers:

• CM08IH

• JPR-CM08IH(1,2,3)

• Craftsman AA.200.90020

• Craftsman AA.300.90030

• Craftsman AA.400.90040

• Jabsco 29460-10-1081

• Johnson 10-24734-01

• Impeller: JMP 7070-01

• Major service kit: JMP JSK0088

• Minor service kit: JMP JSM0092

Aftermarket / Verified Equivalents:

• JMP Marine: JPR-CM08IH family

🚤 Compatibility

Commonly used on:

• Flexible-impeller raw-water cooling systems

Typically suits:

• Engine models:

• Craftsman CM2.16

• Craftsman CM3.27

• Craftsman CM4.42

• HP Range: 16HP-42HP

• Engine Type: Craftsman compact marine diesel

• Year Range: Model-specific; select the correct JPR-CM08IH suffix from the OEM pump and port layout

• Seawater Connections: Approximately 15mm

• Cam Thickness: Approximately 4mm

• Dimensions: Approximately 102 × 114 × 80mm

• Weight: Approximately 1.1kg

• Impeller Reference: JMP 7070-01

🔌 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