21978593 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Factory-formed water-inlet pipe used in the compact TAD5 industrial-engine cooling circuit. Its branch locations, threaded interfaces and zinc-protected construction are matched to the original water-pump and coolant-hose arrangement.

🚤 Compatibility

• Engine Family: TAD, D, TADH

Full model list at the end of this description.

⚙️ Key Features

• Designed for original seals, clamps and adjoining fittings
• Maintains clearance from moving and hot components
• Fitment controlled by engine product and serial number

🔌 Function

Carries the assigned fluid or gas between connected engine components while maintaining the specified routing, flow area and sealing interfaces.

⚠️ Common Signs of Failure

• External leakage or staining
• Cracking at bends or welded joints
• Restricted flow from internal deposits
• Misalignment or fretting at the connections

🛠️ Service Notes

• Offer the pipe up and check it reaches both connections freely before you tighten anything — a rigid pipe pulled into place is a pipe left under permanent strain, and strained pipes crack at the fittings in service
• Renew the sealing washers, O-rings or union seals that go with the pipe rather than reusing the old ones, and make sure the seats, faces and threads are clean
• Keep the ends capped while you work and blow or flush a pipe through before fitting; anything left inside goes straight into the oil, fuel or coolant system
• Tighten unions and banjo bolts evenly to the figures in the workshop manual for your engine — overtightening distorts the seat and starts the leak you were trying to cure
• Refit every clip and support bracket in its original place and keep the pipe clear of hot or moving parts so it cannot chafe or be shaken to failure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21892602 - associated water pipe
• 20757802 - related moulded coolant hose
• 992085 - hose clamp

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D8A5-A MH, D8A2-A MP, D8A6-A MH
• Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
• Volvo Penta TAD570-72VE, TAD570-71VE-B
• Volvo Penta TAD880-82GE, TAD880-84VE
• Volvo Penta TADH880-82GE, TADH880-84VE
• Volvo Penta TAD540-42VE
• Volvo Penta TAD550-51VE
• Volvo Penta TAD552VE
• Volvo Penta TAD580-83VE
• Volvo Penta TAD841-43GE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD851-53GE
• Volvo Penta TAD853VE
• Volvo Penta TAD870-73VE