22329334 Coolant Pump Housing | Genuine Volvo Penta Part

🔧 Product Description

A genuine cast housing for a Volvo Penta coolant-pump assembly. It forms the pump cavity and coolant passages, locates the pump or impeller components and provides the machined sealing faces for the engine block and adjoining cooling connections.

🚤 Compatibility

Typically suits:

• Volvo Penta D8A1-A MP
• Volvo Penta D8A2-A MP
• Volvo Penta D8A3-A MP
• Volvo Penta D8A4-A MP

• Engine Family: D

⚙️ Key Features

• Genuine Volvo Penta coolant-pump housing
• Machined pump bore, passages and gasket surfaces
• Supports correct coolant-pump alignment
• Designed for pressurised hot coolant service
• Used with Volvo Penta pump assemblies including 21931911 or 23033741 where catalogued
• Housing only; pump, gasket, pulley, seals and fasteners are separate

🔌 Function

Houses and locates the coolant-pump components and directs coolant between the pump inlet, engine block and cooling circuit.

⚠️ Common Signs of Failure

• Coolant leakage from the housing or gasket joint
• Cracks, cavitation erosion or corrosion
• Warped mounting face
• Damaged bearing or seal bore
• Repeated pump or gasket failure from misalignment
• Restricted coolant passages causing overheating

🛠️ Service Notes

• Clean both mating faces without scoring them — avoid steel scrapers and blades on alloy faces, and check the faces for flatness and for corrosion pitting around the ports before assembly
• Renew every gasket, O-ring and shaft seal that comes out with the housing, and fit dry unless the workshop manual for your engine specifies a sealant
• Inspect the housing bore, the seal seat and the drain or weep hole; old or wrongly mixed coolant erodes and pits these housings, and a blocked weep hole hides a failing seal until the bearing has gone
• Check that the impeller turns freely and that the running clearances are within the figures the manual for your engine gives before the housing goes back on
• Tighten the fasteners to the manual torque and in the specified sequence, since an alloy housing pulled down unevenly will distort and leak, then refill with the coolant specification for your engine, bleed the system and run up to temperature to check for leaks at the joint and at the weep hole

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 23002903 - Later coolant-pump housing used in updated configurations; confirm serial interchange
• 21931911 - Associated coolant-pump assemblies
• 23033741 - Associated coolant-pump assemblies
• 979099 - Associated gasket
• 21680904 - Associated pulley

OEM Reman Alternatives

• 3801728 - Related Volvo Penta remanufactured pump assemblies
• 3801749 - Related Volvo Penta remanufactured pump assemblies

📦 Condition

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