21730344 Impeller Kit | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Large-Diameter Raw-Water Pump Impeller Kit - Part Number: 21730344

A genuine Volvo Penta large flexible raw-water impeller for selected AQAD40, TAMD40, TAMD61, TAMD62, TAMD71 and TAMD72 marine diesels. The approximately 95mm-diameter, nine-blade impeller is designed for the high-flow seawater pumps used on these engines.

Kit Contents:

• 1 x flexible raw-water impeller - Volvo Penta 21730344

• Pump-cover gasket and O-rings are not included unless separately specified by the genuine package or pump diagram

⚙️ Key Features

• Approximately 95mm outside diameter

• Approximately 63mm width

• Approximately 25mm splined shaft bore

• Nine flexible neoprene blades

• Cross-references several earlier Volvo and SPX numbers

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21730344 cross-references Volvo Penta 21951360, 21430184, 875660, 807904 and 875736 where specified

OEM / Related Numbers:

• 21730344

• 21951360

• 21430184

• 875660

• 807904

• 875736

Aftermarket / Verified Equivalents:

• SPX Johnson Pump: 09-1029B

• Sierra: 18-3078

• RePower Marine: 21730344 replacement impeller

🚤 Compatibility

Commonly used on:

• Large-engine raw-water pump servicing

• Annual impeller replacement

• Cooling-flow restoration

Typically suits:

• Engine models / drive models:

• AQAD40A / AQAD40B

• TAMD40A / TAMD40B

• TAMD61 / TAMD61A

• TAMD62A

• TAMD71 / TAMD71A / TAMD71B

• TAMD72-series engines using the matching pump

• HP Range: Not horsepower-specific

• Engine Type: Volvo Penta medium and heavy marine diesel raw-water cooling system

• Year Range: Approximately 1980s through the 1990s

• Serial Range: Raw-water pump number and shaft spline are controlling; verify the 95 x 63mm nine-blade impeller

🔌 Function

The flexible blades draw seawater through the inlet and deliver high-volume cooling flow through the heat exchanger and exhaust.

Common signs replacement or overhaul is required:

• Cooling-water discharge is reduced

• Engine overheats under load

• Impeller blades are cracked or missing

• Pump has run dry

• Annual service interval has been reached

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging