21212798 Pump | Genuine Volvo Penta Part

🔧 Product Description

Genuine belt-driven flexible-impeller seawater pump for later Volvo Penta 3.0GLP petrol marine engines. It replaces pump 3812522 and uses a 1-1/4 inch inlet, 1 inch outlet and approximately 6-1/2 inch serpentine pulley.

🚤 Compatibility

Typically suits:

• Volvo Penta 3.0GLP-D
• Volvo Penta 3.0GLP-E
• Volvo Penta 3.0GLP-J
• Volvo Penta 3.0GLP-N

⚙️ Key Features

• Current replacement for pump 3812522
• Belt-driven flexible-impeller design
• 1-1/4 inch inlet and 1 inch outlet
• Approximately 6-1/2 inch serpentine pulley
• Dedicated 3.0GLP cooling-system configuration

🔌 Function

The pump draws raw water through the vessel intake and supplies the engine cooling and wet-exhaust circuits.

⚠️ Common Signs of Failure

• Reduced or intermittent exhaust-water discharge
• Missing or permanently set impeller vanes
• Seawater leakage from the shaft seal
• Bearing or pulley noise
• Corroded pump body
• Pulley wobble or belt misalignment

🛠️ Service Notes

• Establish why the old pump failed before the new one goes on — debris, a blocked strainer, a starved supply or a dry run will take out the replacement just as quickly
• Fit new gaskets, O-rings and seals on the pump's joint faces and drive, with the faces clean, and use only the sealant the workshop manual for your engine specifies
• Check the drive and the shaft it runs on — coupling, gear, key, belt or drive dog — while access is good, and renew anything doubtful
• Prime or fill the pump as the manual for your engine directs, bleed the system afterwards, and confirm it is actually delivering before the boat leaves
• Tighten mounting and cover fasteners evenly to the manual's figures; pump housings distort easily, and a distorted housing either leaks or binds

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21212798 → Supersedes 3812522

OEM / Related Numbers

• 3812522 earlier number superseded by this part
• 21213664 - Related flexible-impeller reference; verify pump revision

Other-Brand OEM Numbers

• Poseidon Marine PM3858229 / Johnson 09-5000 family - Rebuild-kit references requiring pump configuration confirmation
• Johnson Pump: 10-13569-14
• Johnson Pump: 10-13569-04

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging