# 21138264 Support Arm | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Support Arm - Part Number: 21138264

  

An electrical-system support arm used to support and route D13 harness branches, sensors or connector hardware. It prevents harness weight and vibration from loading electrical terminals.

  

⚙️ Key Features

  

• Harness-specific mounting geometry

• Maintains connector and branch position

• Protects wiring from heat and vibration

• Uses original cable clips and fasteners

• ECU/harness generation must match

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21138264 (current OEM reference)

  

OEM / Related Numbers:

  

• 21138264

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• D13 electronically controlled marine diesel electrical system

  

Typically suits:

  

• Engine models:

• D13B-series

• D13C1-A

• D13C2-A

• D13C3-A

• D13C4-A

• D13C5-A

• D13C6-A

  

• HP Range: Engine-rating dependent

• Engine Type: D13 electronically controlled marine diesel electrical system

• Year / Serial Range: Harness branch lengths, sensor-kit generation, ECU configuration and connector population are serial controlled

  

🔌 Function

  

Supports the assigned electrical component and preserves connector alignment, bend radius and abrasion clearance.

  

Common signs of failure:

  

• Cracks around mounting holes or bends

• Loose or misaligned supported component

• Abnormal vibration or rattling

• Repeated pipe, hose or harness fatigue

• Fasteners that will not retain torque

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 204.79 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 204.79 AUD | In stock |

## Images

- 21138264 Support Arm | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21138264-support-arm-genuine-volvo-penta)
> Updated: 2026-08-02