# 21277456 Cover | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta cover used in a cooling-system or seawater-pump assembly. It closes the component housing, supports the associated gasket or O-ring and protects the internal flow passage or rotating element.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D11B2-A MP
-   Volvo Penta D11A-C MP
-   Volvo Penta D11A-D MP
-   Volvo Penta D11A-E MP
-   Volvo Penta D11A-C (IPS)

-   **Engine Family:** D

## ⚙️ Key Features

-   Genuine Volvo Penta cooling-system cover
-   Machined sealing face and mounting pattern
-   Protects internal cooling-system components
-   Use the specified gasket, O-ring and fasteners
-   Match pump/housing revision and engine serial
-   Engine type: Volvo Penta marine diesel cooling system

## 🔌 Function

Closes the assigned cooling-system housing and maintains the sealed internal water passage.

## ⚠️ Common Signs of Failure

-   Coolant or seawater leakage around the component
-   Restricted flow, corrosion scale or internal blockage
-   Pressure loss, aeration or repeated overheating alarms
-   Visible pitting, cracking or damaged sealing surfaces

## 🛠️ 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

### OEM / Related Numbers

-   21277458 - associated seawater-pump cam in the D11 pump family
-   21277478 - associated cross-recessed screw used in the same service area

## 📦 Condition

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

## Details

- **Price:** 332.72 AUD
- **Vendor:** Volvo Penta
- **Type:** Cooling System
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 332.72 AUD | In stock |

## Images

- 21277456 Cover | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21277456-cover-genuine-volvo-penta)
> Updated: 2026-10-10