21277458 Cam | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D11 Seawater-Pump Cam - Part Number: 21277458

Genuine Volvo Penta replaceable cam used inside the flexible-impeller seawater pump on D11 marine engines. The cam compresses the impeller vanes through part of each revolution, creating the displacement needed to draw and discharge raw water.

⚙️ Key Features

• Genuine Volvo Penta seawater-pump cam

• Used with Volvo Penta seawater pump 21219723

• Controls flexible-impeller vane compression

• Documented JMP replacement cam set available

• Inspect screws, cover, wear surfaces and impeller together

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21277458 (current listed OEM reference)

OEM / Related Numbers:

• 21219723 - associated seawater pump

• 21277456 - associated pump/cooling cover

• 21277478 - associated cross-recessed screw

Aftermarket / Verified Equivalents:

• JMP / Marine Energy Systems: CAMSET0038

🚤 Compatibility

Commonly used on:

• Volvo Penta D11 marine seawater-circulation pump

Typically suits:

• Engine models:

• D11 marine engine product numbers fitted with seawater pump 21219723

• Serial / Specification Control: Seawater-pump number and engine serial must match; cams from visually similar pumps may have different height or curvature.

• HP Range: D11 marine rating dependent

• Engine Type: Volvo Penta D11 inline-six common-rail marine diesel

• Year Range: D11 pump and engine-serial controlled

🔌 Function

Deflects the impeller vanes to create suction and discharge chambers inside the seawater pump.

Common signs of failure:

• Reduced raw-water flow or overheating

• Deep grooves or erosion on the cam surface

• Impeller vanes failing to flex correctly

• Cavitation damage or corrosion

• Loose or damaged cam retaining screws

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging