# 981735 Cap Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cap plug weighing 0.002 kg, listed for 27 applications across the D, TWD and TAD series.

## 🚤 Compatibility

-   **Engine Family:** D, TWD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   0.002 kg
-   27 applications across D, TWD and TAD engines
-   Blanking cap for an unused opening
-   3 used per assembly

## 🔌 Function

Caps off a port, spigot or thread to keep dirt and moisture out of an opening that is not in use.

## ⚠️ Common Signs of Failure

-   Cap missing, split or working off in service
-   Dirt or water found inside the capped opening
-   Cap gone hard and no longer gripping
-   Corrosion on the spigot the cap should have protected

## 🛠️ Service Notes

-   Fit a new plug rather than refitting a used one — a plug that has been driven or screwed out will not seal reliably a second time
-   Clean the bore or threads out fully and check the sealing seat for corrosion pitting and damage; a pitted seat will keep weeping whatever plug is fitted
-   Fit the plug squarely and to the depth or tightness given in the workshop manual for your engine, using only the sealant or thread compound specified for that joint
-   Support the surrounding casting where you can and drive or tighten without distorting the plug, then pressure test or run the engine up and check the plug for weeping

## 📦 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 TAD1241GE, TAD1241VE, TAD1241-42VE
-   Volvo Penta TAD1242GE, TAD1242VE
-   Volvo Penta TAD1250VE, TAD1250-52VE
-   Volvo Penta TAD1240GE
-   Volvo Penta TAD1251VE
-   Volvo Penta TAD1252VE
-   Volvo Penta TWD1240VE

## Details

- **Price:** 3.88 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3.88 AUD | In stock |

## Images

- 981735 Cap Plug | Genuine Volvo Penta Part
- 981735 Cap Plug | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/981735-cap-plug-genuine-volvo-penta)
> Updated: 2026-10-10