21376746 Connector | Genuine Volvo Penta Part

🔧 Product Description

Genuine backflow or return connector used in the SCR pump-unit assembly of Volvo Penta TAD880-TAD884VE engines. It routes returning reducing agent through the specified pump and hose circuit.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD880-82GE
• Volvo Penta D8A6-A MH
• Volvo Penta D8A6-A MG
• Volvo Penta TAD880-84VE
• Volvo Penta TAD1180-83VE
• Volvo Penta TAD580-83VE
• Volvo Penta TADH880-82GE
• Volvo Penta TADH880-84VE

• Engine Family: TAD, D, TADH

⚙️ Key Features

• SCR/AdBlue return or backflow connector
• TAD880-TAD884VE application
• Used with pump units 21577511 and 23753841
• Chemical-resistant quick-connect construction
• Application-specific hose-lock geometry

🔌 Function

The connector returns AdBlue/DEF through the pump circuit during dosing-system operation and purge cycles.

⚠️ Common Signs of Failure

• AdBlue leakage or crystallisation
• SCR purge or pressure fault
• Connector not locking
• Blocked return flow
• Cracked connector body

🛠️ Service Notes

• Compare the new connector against the old one for size, form and number of ways before fitting; connectors that look alike are frequently not interchangeable
• Renew any seal, gasket or O-ring that belongs with the connector rather than reusing the old one, and check the mating faces are clean, dry and undamaged
• Support the connector and the line or harness running into it so the joint carries no weight or side load, and keep the original routing and clips clear of hot and moving parts
• Push or thread the connector fully home until it seats or locks, then confirm the lock has engaged rather than assuming it has
• Prove the joint before closing up the access — check it for leaks or for correct operation, whichever applies to that position, with the engine run up

📦 Condition

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