21471345 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

A formed coolant pipe used in the expansion-tank and engine-cooling circuit on selected Volvo Penta heavy-duty diesel engines from the specified production break.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta formed coolant pipe
• Designed for the original expansion-tank arrangement
• Correct mounting and hose-connection positions
• Used with air-vent pipe 21505623
• Resistant to hot pressurised coolant
• Engine type: Volvo Penta heavy-duty turbocharged diesel

🔌 Function

Carries coolant between the engine cooling circuit and expansion tank while allowing air to purge through the vent system.

⚠️ Common Signs of Failure

• Cracked pipe or mounting tab
• Falling coolant level
• Air trapped in the cooling system or engine overheating

🛠️ 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 / Related Numbers

• 21366063 - related pipe
• 21505623 - air-vent pipe
• 942754 - 1100 mm hose
• 943367 - rubber hose
• 994559 and 961663 - hose clamps
• 21167108 - cover bracket

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C1-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP