# 20550017 Cap | Genuine Volvo Penta Part

## 🔧 Product Description

This genuine Volvo Penta cap is an OEM service component used in the Electrical Connector Cap. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta 5-litre TAD5 generator diesel application. Technical identification: Protective connector cap sealing the unused or serviced electrical receptacle. In service, it provides a keyed, protected electrical connection and retains the correct terminals in their specified positions. Selection must be confirmed by OEM part number 20550017, the exact model/product number, serial number and installed assembly configuration.

## 🚤 Compatibility

-   **Engine Family:** TD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta OEM cap
-   OEM part number 20550017
-   Technical distinction: Protective connector cap sealing the unused or serviced electrical receptacle

## 🔌 Function

Provides a keyed, protected electrical connection and retains the correct terminals in their specified positions. Match connector keying and terminal positions, protect the harness from heat/chafing and verify continuity, insulation and voltage drop before commissioning.

## ⚠️ Common Signs of Failure

-   The cap missing, split, or hanging loose from a receptacle
-   Moisture, salt or dirt found inside the receptacle it should be sealing
-   Corroded pins in a connector that is only used occasionally
-   The sealing lip hardened or perished so the cap no longer grips

## 🛠️ Service Notes

-   Leaving an unused receptacle open is the usual cause of corrosion on that circuit, so fit the cap even where the connector is never mated

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAD520GE, TAD520VE
-   Volvo Penta TAD530GE MECH, TAD530GE EDC4
-   Volvo Penta TAD531GE MECH, TAD531GE EDC4
-   Volvo Penta TAD720GE, TAD720VE
-   Volvo Penta TAD721GE, TAD721VE
-   Volvo Penta TAD722GE, TAD722VE
-   Volvo Penta TAD730GE MECH, TAD730GE EDC4
-   Volvo Penta TAD731GE MECH, TAD731GE EDC4
-   Volvo Penta TAD420VE
-   Volvo Penta TAD532GE EDC4
-   Volvo Penta TAD620VE
-   Volvo Penta TAD732GE EDC4
-   Volvo Penta TAD733GE EDC4
-   Volvo Penta TAD734GE
-   Volvo Penta TD520GE
-   Volvo Penta TD720GE

## Details

- **Price:** 16.52 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 16.52 AUD | In stock |

## Images

- 20550017 Cap | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20550017-cap-genuine-volvo-penta)
> Updated: 2026-09-19