# 21139409 Intermediate Plate | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta D9 Marine Transmission Intermediate Plate - Part Number: 21139409

  

Brand-new genuine Volvo Penta intermediate adapter plate used between the D9A2A engine/flywheel housing and the specified hydraulic reversing gear. The machined plate establishes the correct pilot diameter, bolt pattern and axial spacing for the transmission installation.

  

⚙️ Key Features

  

• Precision-machined engine-to-transmission adapter

• Maintains concentric alignment of the crankshaft and gearbox input

• Used with D9A2A reversing-gear installations

• Carries driveline reaction loads into the flywheel housing

• Plate only; coupling, gearbox and fasteners are separate

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21139409 - Current OEM reference

  

OEM / Related Numbers:

  

• Volvo Penta 21139409

• VOE21139409

• Reversing gears 3839200 and 3839201

• Clutch flange 3828558

• Engine anchorage 21112925

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• D9A2A marine propulsion transmission mounting

  

Typically suits:

  

• Engine / drive models:

• D9A2A

• Engine Type: Volvo Penta D9 marine diesel with hydraulic reversing gear

• Year / Generation: D9A2A marine propulsion

  

🔌 Function

  

Adapts and centres the reversing gear to the engine while setting the required driveline spacing.

  

Common signs of failure:

  

• Transmission misalignment or coupling vibration

• Fretting around bolt holes

• Cracks or distortion

• Damaged pilot surface

• Repeated gearbox input-bearing or coupling wear

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 207.76 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 207.76 AUD | In stock |

## Images

- 21139409 Intermediate Plate | Genuine Volvo Penta Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21139409-intermediate-plate-genuine-volvo-penta)
> Updated: 2026-08-02