22387445 Water Pipe | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta air-compressor cooling-water pipe is used in the following application: Volvo Penta heavy-duty diesel air-compressor cooling circuits. Carries engine coolant through the air-compressor cooling jacket to control compressor temperature and protect valves, seals and lubricating oil.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD552VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD570-71VE-B
• Volvo Penta TAD550-51VE
• Volvo Penta TAD540-42VE
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD870-73VE

• Engine Family: TAD

⚙️ Key Features

• Rigid coolant pipe for the compressor circuit
• Correct banjo, flange or union geometry
• Maintains coolant flow around the compressor
• Designed for engine vibration and thermal cycling
• Renew sealing rings at disturbed connections

🔌 Function

Carries engine coolant through the air-compressor cooling jacket to control compressor temperature and protect valves, seals and lubricating oil.

⚠️ Common Signs of Failure

• Coolant leakage around pipe unions or hollow screw
• Corrosion, pitting or fatigue crack in the rigid pipe
• Compressor running abnormally hot
• Coolant loss with no obvious radiator leak
• Restricted pipe from scale or debris
• Damage caused by unsupported vibration

🛠️ Service Notes

• Drain the system to below the level of the pipe before disconnecting it and catch what comes out — coolant and raw water both make a mess of a bilge
• Renew the O-rings, seals or gaskets at each joint rather than reusing them, and lubricate rubber seals with clean coolant or the lubricant the manual specifies, never with oil or grease
• Check the bore is clear and clean before fitting; scale, silt and debris carried over from the old pipe will lodge in the pump or heat exchanger
• Support the pipe on its original brackets and clips so the joints carry no strain, and keep it clear of hot surfaces and moving parts
• Refill, bleed, then run the engine and check every joint for weeping while it is warm and under pressure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 22387445 → Supersedes 21697304

OEM / Related Numbers

• 21697304 earlier number superseded by this part
• 21931626 - associated air compressor
• 21735437 - associated compressor gear
• 21806059 - associated pressure hose
• 22702100 - associated pressure hose
• 1677370 - associated sealing ring
• 973950 - associated hollow screw

📦 Condition

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