21244966 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

A formed cooling-system pipe used around the coolant pump, thermostat housing and turbocharger cooling circuit on selected Volvo Penta D11 marine engines.

🚤 Compatibility

Typically suits:

• Volvo Penta D11A-A
• Volvo Penta D11A-B
• Volvo Penta D11A-C
• Volvo Penta D11A-E
• Volvo Penta D11A-C MP
• Volvo Penta D11A-D MP
• Volvo Penta D11A-E MP

• Engine Family: D

⚙️ Key Features

• Correct factory bends and mounting points
• Used with coolant-pump and thermostat components
• replacement component
• Direct replacement where part number 21244966 is specified
• Engine type: D11 inline-six turbocharged marine diesel

🔌 Function

Routes engine coolant through the pump, thermostat or turbocharger cooling circuit.

⚠️ Common Signs of Failure

• Dried coolant staining
• Cracked mounting bracket
• Overheating caused by flow loss

🛠️ Service Notes

• Clean both flanges or spigots and check the sealing lands for pitting and corrosion; renew every O-ring, seal or gasket at the joint rather than reusing one that has taken a set
• Lubricate coolant-side O-rings with coolant or a rubber-safe lubricant — petroleum oil and grease swell and soften the rubber and end up in the coolant
• Offer the pipe up and align both ends before pulling any fastener tight, so the joints are not held together by strain from a misaligned pipe or an over-stretched hose
• Check the bore is clear of scale, sealant and debris before fitting, and inspect the pipe for internal corrosion or thinning if the old one was leaking
• Refill with the coolant type and mix specified for your engine, bleed the system through, then check the joints again with the engine hot and up to pressure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21244966 → Supersedes 21118767 → Supersedes 3888525

OEM / Related Numbers

• 21118767 earlier number superseded by this part
• 3888525 earlier number superseded by this part
• 3801102 - coolant pump
• 3808593 - thermostat housing
• 3836307 and 3886496 - coolant pipes
• 1547252 and 1547253 - seals
• 1546531 - locking component

📦 Condition

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