21730348 Impeller Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D9 / D11 Raw-Water Pump Impeller Kit - Part Number: 21730348

A genuine Volvo Penta flexible raw-water impeller kit used on selected D9, D11 and related high-flow marine cooling pumps. The impeller is approximately 65mm in diameter, 76.2mm wide and uses a 16mm seven-spline hub.

Kit Contents:

• 1 x eight-blade flexible impeller - Volvo Penta 21730348

• 1 x O-ring - aftermarket JMP reference ORG0067 where kit 7446-01K is used

• 1 x O-ring - aftermarket JMP reference ORG0071 where kit 7446-01K is used

• Genuine package sealing content can vary by pump; verify the pump-cover diagram

⚙️ Key Features

• Approximately 65mm diameter and 76.2mm width

• 16mm seven-spline hub

• Eight flexible blades

• Cross-references earlier Volvo impeller numbers

• Jabsco and JMP equivalents available

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21730348 cross-references Volvo Penta 3817587, 3593573, 3583602 and 3819486 where specified

OEM / Related Numbers:

• 21730348

• 3817587

• 3593573

• 3583602

• 3819486

Aftermarket / Verified Equivalents:

• Jabsco: 17018-0001

• JMP: 7446-01K

• JMP impeller: 7446-01

• Caterpillar: 3N5895 cross reference

🚤 Compatibility

Commonly used on:

• D9 / D11 raw-water pump servicing

• Annual impeller replacement

• High-flow marine cooling maintenance

Typically suits:

• Engine models / drive models:

• D9A2A through D9A2F marine applications using the matching pump

• D11A / D11B / D11C marine applications using the matching pump

• Selected early D6 applications where the pump diagram specifies 21730348

• HP Range: Not horsepower-specific

• Engine Type: Volvo Penta D9 / D11 marine diesel raw-water cooling system

• Year Range: Approximately 2000s onward

• Serial Range: Raw-water pump and spline controlled; verify the 65 x 76.2mm, seven-spline impeller before ordering

🔌 Function

The flexible impeller supplies raw-water flow to the engine heat exchanger, charge-air cooler and wet exhaust.

Common signs replacement or overhaul is required:

• Raw-water flow is reduced

• Engine or charge-air temperature rises

• Impeller blades are cracked or missing

• Pump has been opened after a dry-run event

• Scheduled annual replacement is due

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging