# 21351088 Cover | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine composite front timing cover for GM-based Volvo Penta 4.3-litre V6 petrol marine engines using the cover configuration with a crankshaft-sensor opening. The cover closes the timing-chain area and supports the front crankshaft seal and sensor arrangement.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta 4.3OSi-GF
-   Volvo Penta 4.3GL-D
-   Volvo Penta 4.3GL-E
-   Volvo Penta 4.3GL-EF
-   Volvo Penta 4.3GL-G
-   Volvo Penta 4.3GL-GF
-   Volvo Penta 4.3GXi-E
-   Volvo Penta 4.3GXi-EF
-   Volvo Penta 4.3GXi-F
-   Volvo Penta 4.3GXi-FF
-   Volvo Penta 4.3GXi-G
-   Volvo Penta 4.3GXi-GF
-   Volvo Penta 4.3OSi-E
-   Volvo Penta 4.3OSi-EF
-   Volvo Penta 4.3OSi-F
-   Volvo Penta 4.3OSi-FF
-   Volvo Penta 4.3OSi-G

## ⚙️ Key Features

-   4.3L GM V6 composite timing cover
-   Crankshaft-position sensor opening
-   Factory seal, bolt and oil-pan interface
-   Marine petrol-engine application

## 🔌 Function

The cover encloses the timing chain and sprockets, retains engine oil and provides the mounting and sealing locations for the front crankshaft seal and position sensor.

## ⚠️ Common Signs of Failure

-   Oil leakage around the cover perimeter
-   Oil leakage at the front crankshaft seal
-   Cracked composite housing
-   Damaged crankshaft-sensor mounting point
-   Warped oil-pan sealing edge

## 🛠️ Service Notes

-   Clean both sealing faces back to clean metal and check the cover for distortion, cracks or pulled bolt holes before refitting — a warped flange will not seal even with a new gasket
-   Where the joint uses a gasket, seal or O-ring, always fit a new one and seat it dry unless the workshop manual for your engine specifies a sealant; never try to make a poor joint tight with extra sealant
-   Tighten the fasteners progressively and evenly, working out from the centre, to the figure given in the manual for your engine — pressed steel, alloy and plastic covers distort easily if pulled down hard or unevenly
-   If the cover carries a shaft seal or bearing, support it square to the shaft as it goes on so the seal lip is not nicked or rolled over
-   Check that any breather, drain or oil return passage in the cover is clear before final tightening, and look for leaks once the engine has been run up to temperature

## 🔄 Supersession & Cross Reference

### Other-Brand OEM Numbers

-   MerCruiser 809893
-   MerCruiser 809893T
-   MerCruiser 888777T
-   MerCruiser 8M0069799

### Aftermarket / Verified Equivalents

-   Dorman-style aftermarket reference: 635-502
-   Aftermarket 4.3L V6 timing-cover assemblies cross-referencing 809893 / 888777T / 8M0069799

## 📦 Condition

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

## Details

- **Price:** 400.35 AUD
- **Vendor:** Volvo Penta
- **Type:** Marine Equipment
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 400.35 AUD | In stock |

## Images

- 21351088 Cover | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21351088-cover-genuine-volvo-penta)
> Updated: 2026-10-10