471115 Reduction Valve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta reduction valve listed under the Transmission group, weighing 20.4 g and listed for 80 applications across AQD, MD, TMD, TAMD, AD and AQAD series engines.

🚤 Compatibility

• Engine Family: AQD, MD, TMD, TAMD, AD, AQAD, D, TD, THAMD, KAMD, KAD

Full model list at the end of this description.

⚙️ Key Features

• 20.4 g
• 80 applications across six engine series
• Listed under the Transmission group

🔌 Function

Limits pressure in its circuit by opening against a spring once the set pressure is reached, bleeding the excess away.

⚠️ Common Signs of Failure

• Pressure high, low or unstable in the circuit
• Valve sticking open, so pressure never builds
• Valve seized shut, giving pressure spikes and blown seals
• Debris trapped on the seat so the valve weeps constantly
• Spring collapsed or broken

🛠️ Service Notes

• Much lighter than the engine oil reduction valves in this round - 471640, 471646, 471706 and 471707 all sit in the 63 to 70 g range, so this 20.4 g valve is a different part despite the shared name
• It is grouped with the transmission rather than the engine, so confirm which circuit you are working on before ordering

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P, TAMD41A
• Volvo Penta AD31, AD31B, AD31D-A, AD31L-A, AD31P-A, AD31XD
• Volvo Penta AD41B, AD41D, AD41L-A, AD41P-A, AD41A, AD41BJ
• Volvo Penta TMD31A, TMD31B, TMD31D, TMD31L-A
• Volvo Penta TMD41A, TMD41B, TMD41D, TMD41L-A
• Volvo Penta D41B, D41D, D41L-A
• Volvo Penta KAD42A, KAD42B, KAD42P-A
• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta TMD40A, TMD40B, TMD40C
• Volvo Penta AQAD40B, AQAD40A
• Volvo Penta AQD70BL, AQD70CL
• Volvo Penta TAMD40A, TAMD40B
• Volvo Penta TAMD42WJ-A, TAMD42B
• Volvo Penta THAMD70C, THAMD70B
• Volvo Penta AQAD30A
• Volvo Penta AQD40A
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAD43P-A
• Volvo Penta KAMD300-A
• Volvo Penta MD30A
• Volvo Penta MD31A
• Volvo Penta MD40A
• Volvo Penta TAMD30A
• Volvo Penta TD30A
• Volvo Penta TD31ACE
• Volvo Penta TD40A
• Volvo Penta TMD30A