# 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

## Details

- **Price:** 55.95 AUD
- **Vendor:** Volvo Penta
- **Type:** Transmission & Gearbox
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 55.95 AUD | In stock |

## Images

- 471115 Reduction Valve | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/471115-reduction-valve-genuine-volvo-penta)
> Updated: 2026-10-06