# 21889019 Cable | Genuine Volvo Penta Part

## 🔧 Product Description

Electrical cable used in the TAD550GE inlet-heater / starter-element circuit. Conductor size, insulation temperature rating and terminal configuration are designed for the high-current preheat system.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   Factory conductor gauge and terminal configuration
-   Correct length and protected routing
-   Designed for the original relay/component interface
-   Resistant to engine vibration and heat
-   Exact electrical schematic match required

## 🔌 Function

Carries high current from the relay/positive connector to the inlet starter element during cold starting.

## ⚠️ Common Signs of Failure

-   Slow or failed cold starting
-   Inlet-heater fault or relay chatter
-   Hot terminals or melted insulation
-   High resistance / voltage drop under load
-   Corrosion or looseness at the starter-element connection

## 🛠️ Service Notes

-   Isolate the battery before disconnecting or reconnecting anything, and make sure connectors are clean, dry and fully latched before switching the system back on
-   Route the new cable along the original path and secure it with the original clips, ties and stand-offs; unsupported cable chafes through wherever it touches a bracket, hose or edge
-   Keep the run clear of the exhaust and turbocharger, away from moving parts and sharp edges, and use a grommet or gland wherever it passes through a panel or bulkhead
-   Protect the connections against damp — a properly seated and sealed connector survives an engine bilge atmosphere far better than a taped joint
-   Replace a damaged cable rather than patching it; where a repair is unavoidable use a crimped and sealed joint, never solder as the only mechanical connection

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20758403 - starter element / inlet heater
-   21638698 - connector poles
-   20498524 - O-ring
-   20550336 - insulator
-   20726089 - positive connector
-   21888999 - related cable
-   21385453 - pressure sensor
-   21311705 - relay
-   21011717 - charge-air pipe

## 📦 Condition

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

## Details

- **Price:** 151.46 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 151.46 AUD | In stock |

## Images

- 21889019 Cable | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21889019-cable-genuine-volvo-penta)
> Updated: 2026-09-07