# 842972 Valve Disc | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta valve disc 89 mm long, from the Inlet and Exhaust System group, listed for 104 applications across TMD, MD, TAMD, AD, AQAD and D series engines. The published weight of 0.002 kg is far too low for a valve disc of this length and cannot be used to identify the part, so order by the 89 mm length and by part number.

## 🚤 Compatibility

-   **Engine Family:** TMD, MD, TAMD, AD, AQAD, D, AQD, TD, TAD, KAD

Full model list at the end of this description.

## ⚙️ Key Features

-   89 mm long
-   104 applications across TMD, MD, TAMD, AD, AQAD and D series engines
-   Published weight is implausibly low and is no guide to identification
-   L=89mm (Volvo assembly listing)

## 🔌 Function

Forms the moving face of the valve, closing against its seat to shut off flow through the passage.

## ⚠️ Common Signs of Failure

-   Valve no longer shutting off cleanly, giving leak-past
-   Disc face pitted, grooved or carboned up
-   Stem worn or bent so the disc does not seat square
-   Rattle or knock from the valve gear
-   Seat found blued or eroded on strip-down

## 🛠️ Service Notes

-   Order by the 89 mm length and the part number, because the published weight is clearly wrong
-   Inspect the seat and guide when the disc is out, as a worn seat will destroy a new disc

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta D12C-A MP, D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
-   Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
-   Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
-   Volvo Penta TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
-   Volvo Penta TAMD165A, TAMD165C, TAMD165P
-   Volvo Penta TAMD72A, TAMD72P-A, TAMD72WJ-A
-   Volvo Penta TMD40A, TMD40B, TMD40C
-   Volvo Penta AD31, AD31B
-   Volvo Penta AD41B, AD41A
-   Volvo Penta AQAD40B, AQAD40A
-   Volvo Penta TAMD102A, TAMD102D
-   Volvo Penta TAMD120A, TAMD120B
-   Volvo Penta TAMD31A, TAMD31B
-   Volvo Penta TAMD40A, TAMD40B
-   Volvo Penta TAMD41B, TAMD41A
-   Volvo Penta TAMD60B, TAMD60C
-   Volvo Penta TAMD63L-A, TAMD63P-A
-   Volvo Penta TAMD70E, TAMD70D
-   Volvo Penta TAMD71B, TAMD71A
-   Volvo Penta TAMD73P-A, TAMD73WJ-A
-   Volvo Penta TD100CHC, TD100CRC
-   Volvo Penta TD120BHC, TD120BRC
-   Volvo Penta TD121CHC, TD121CRC
-   Volvo Penta TMD100A, TMD100C
-   Volvo Penta TMD120A, TMD120B
-   Volvo Penta TMD31A, TMD31B
-   Volvo Penta TMD41A, TMD41B
-   Volvo Penta AQAD30A
-   Volvo Penta AQD40A
-   Volvo Penta AQD70D
-   Volvo Penta D41B
-   Volvo Penta KAD32P
-   Volvo Penta MD30A
-   Volvo Penta MD31A
-   Volvo Penta MD40A
-   Volvo Penta MD70C
-   Volvo Penta TAD121CHC
-   Volvo Penta TAMD103A
-   Volvo Penta TAMD121D
-   Volvo Penta TAMD163P-A
-   Volvo Penta TAMD30A
-   Volvo Penta TAMD61A
-   Volvo Penta TAMD62A
-   Volvo Penta TAMD75P-A
-   Volvo Penta TMD102A
-   Volvo Penta TMD121C
-   Volvo Penta TMD122A
-   Volvo Penta TMD30A
-   Volvo Penta TMD70C

## Details

- **Price:** 21.41 AUD
- **Vendor:** Volvo Penta
- **Type:** Inlet & Exhaust
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 21.41 AUD | In stock |

## Images

- 842972 Valve Disc | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/842972-valve-disc-genuine-volvo-penta)
> Updated: 2026-09-19