21479079 Throttle Valve | Genuine Volvo Penta Part

🔧 Product Description

An electronically or pneumatically controlled intake throttle valve used in the inlet and exhaust system of the Volvo Penta TAD560VE.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD560VE
• Volvo Penta TAD561VE

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta throttle-valve assembly
• Controls intake-air flow during engine-management functions
• Designed for TAD560VE inlet-system pressure and temperature
• Includes the original actuator and valve body supplied under the part number
• Works with the engine control and exhaust-management strategy
• Engine type: Six-cylinder turbocharged industrial diesel

🔌 Function

Regulates intake airflow for engine shutdown, exhaust-temperature management or other control functions.

⚠️ Common Signs of Failure

• Engine derate or intake-throttle fault code
• Valve sticks open or closed
• Reduced power
• Engine shutdown becomes harsh or incomplete
• Oil and soot deposits restrict valve movement

🛠️ Service Notes

• This throttle valve is part of the engine-management strategy (shutdown or exhaust-temperature control), not a hand or cable throttle — treat its actuator and valve body as a single sealed unit rather than something to strip down for a sticking blade
• Check the actuator drives the valve through its full travel before returning the engine to service; a valve that sticks part-open or part-closed shows up as an emissions or shutdown fault rather than an obvious mechanical failure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21479079 → Supersedes 21411668

OEM / Related Numbers

• 21411668 earlier number superseded by this part

📦 Condition

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