JPR-VP2800G Aftermarket Volvo Penta 8.1Gi/8.1IPS Seawater Pump 21212800 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket JMP Volvo Penta 8.1Gi/8.1IPS seawater pump - Replacement Part Number: JPR-VP2800G

A complete seawater pump for Volvo Penta 8.1Gi and 8.1IPS big-block petrol engines. It replaces Volvo Penta 21212800 and cross-references to Johnson 10-13470-03.

⚙️ 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:

• Volvo Penta 21212800 (OEM pump reference)

• Johnson 10-13470-03 (original pump cross-reference)

OEM / Related Numbers:

• JPR-VP2800G

• Volvo Penta 21212800

• Johnson 10-13470-03

Aftermarket / Verified Equivalents:

• JMP Marine: JPR-VP2800G

🚤 Compatibility

Commonly used on:

• Flexible-impeller raw-water cooling systems

Typically suits:

• Engine models:

• Volvo Penta 8.1Gi

• Volvo Penta 8.1IPS

• HP Range: Engine-rating specific

• Engine Type: Volvo Penta GM 8.1L big-block petrol V8

• Year Range: Model- and serial-specific; confirm OEM pump 21212800

• Engine Displacement: 8.1L

• Original Pump Cross-Reference: Johnson 10-13470-03

🔌 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