# 21187738 Arm | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta D1/D2 Governor Arm - Part Number: 21187738

  

Genuine arm used in the mechanical governor and fuel-control linkage of selected Volvo Penta D1 and D2 marine diesel engines.

  

⚙️ Key Features

  

• Mechanical governor linkage arm

• Confirmed D1-13F and D2-55 governor-system use

• Factory pivot and attachment geometry

• Transfers governor movement

• Designed for the matched shafts and levers

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21187738 - Current OEM part number

  

OEM / Related Numbers:

  

• 21187738

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Confirmed system applications:

  

• D1-13F mechanical governor

• D2-55A, D2-55B, D2-55C, D2-55D, D2-55E and D2-55F governor assemblies

  

• Confirm linkage orientation and engine serial number

  

🔌 Function

  

The arm transfers movement between the governor shaft and the fuel-control linkage.

  

Common signs of failure:

  

• Elongated pivot hole

• Bent arm

• Excess linkage play

• Unstable idle or rated speed

• Binding through the throttle range

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 54.22 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 54.22 AUD | In stock |

## Images

- 21187738 Arm | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21187738-arm-genuine-volvo-penta)
> Updated: 2026-08-02