# 20798133 Protecting Cap | Genuine Volvo Penta Part

## 🔧 Product Description

Electrical connection or protection component used in the engine-harness connector or live-terminal protection. It preserves terminal retention, insulation and environmental sealing in the engine wiring installation.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TD720GE
-   Volvo Penta TD520GE
-   Volvo Penta TAD720GE
-   Volvo Penta TAD721GE
-   Volvo Penta TAD722GE
-   Volvo Penta TAD730GE MECH
-   Volvo Penta TAD730GE EDC4
-   Volvo Penta TAD731GE MECH
-   Volvo Penta TAD731GE EDC4
-   Volvo Penta TAD732GE EDC4
-   Volvo Penta TAD733GE EDC4
-   Volvo Penta TAD520GE
-   Volvo Penta TAD530GE MECH
-   Volvo Penta TAD530GE EDC4
-   Volvo Penta TAD531GE MECH
-   Volvo Penta TAD531GE EDC4
-   Volvo Penta TAD532GE EDC4

-   **Engine Family:** TD, TAD
-   **Year Range:** Approximately 2000s-2010s

## ⚙️ Key Features

-   Protective cap for the AUX connector
-   0.005 kg
-   Listed for 17 applications across TD and TAD engines

## 🔌 Function

Provides a secure electrical connection while maintaining terminal retention, insulation and environmental protection.

## ⚠️ Common Signs of Failure

-   Intermittent electrical operation or stored fault codes
-   Corrosion, moisture or oil contamination at the connection
-   Excessive voltage drop or heat-damaged terminals
-   Loose, pushed-back or broken terminal retention

## 🛠️ Service Notes

-   Fit the cap over the terminal or connector it belongs to and check it seats fully; its job is to stop a dropped tool or a stray cable shorting a live stud
-   Isolate the batteries before removing a cap from a live terminal, and put it back before the circuit is remade
-   Renew any cap that has split, hardened or lost its grip — a cap that will not stay in place is not protecting anything

## 📦 Condition

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

## 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

- 20798133 Protecting Cap | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20798133-protecting-cap-genuine-volvo-penta)
> Updated: 2026-09-06