# 20882154 Cap | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta cap that closes and protects its specified housing, pipe or service opening. The cap uses the original thread, locking form and sealing interface to retain pressure where required and prevent dirt or moisture entering the system.

## ⚙️ Key Features

-   Genuine Volvo Penta Service Cap - part number 20882154
-   Original thread or bayonet-lock geometry
-   Correct sealing face and installed depth
-   Protects the internal system from contamination
-   Retains pressure or fluid where the application requires
-   Service grip and tool interface match the original design
-   Use the specified seal and do not overtighten
-   Engine type: Application-specific Volvo Penta engine installation

## 🔌 Function

The cap closes the service opening and compresses the seal against the housing. It permits controlled access during maintenance while maintaining system integrity during operation.

## ⚠️ Common Signs of Failure

-   Fluid or vapour leakage around the cap
-   Cracked cap or damaged threads
-   Cap will not tighten or release
-   Seal does not compress evenly
-   Contamination enters through a missing or loose cap

## 🛠️ Service Notes

-   Clean and inspect the seating face on the housing as well as the cap — most leaks past a cap are the seat or the seal rather than the cap body
-   Renew any separate O-ring or gasket that goes with the cap, and lubricate rubber seals lightly with clean oil or grease so they slide home instead of rolling or tearing
-   Do not over-tighten a cap into a plastic or aluminium housing; it seals on its gasket or O-ring, not on force, and stripped threads mean a much bigger repair
-   Where a cap blanks a port during a repair, keep it fitted right up to the moment of assembly so nothing enters the opening
-   Check the cap is fully home and that any retaining clip, lanyard or locking tab is secure before returning the boat to service

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20882154 → Supersedes 20459009 → Supersedes 20559836

### OEM / Related Numbers

-   20459009 earlier number superseded by this part
-   20559836 earlier number superseded by this part

### Other-Brand OEM Numbers

-   VOE20882154

## 📦 Condition

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

## Details

- **Price:** 10.0 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.00 AUD | In stock |

## Images

- 20882154 Cap | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20882154-cap-genuine-volvo-penta)
> Updated: 2026-10-08