# 21860425 Common Rail | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta TAD5 High-Pressure Common Rail - Part Number: 21860425

  

A genuine high-pressure fuel rail used in the common-rail injection system on Volvo Penta TAD540-42VE industrial engines. It distributes pressurised diesel fuel to the four injectors and carries the rail-pressure sensor.

  

⚙️ Key Features

  

• Genuine Volvo Penta high-pressure fuel rail

• Precision-machined injector-pipe ports

• Supports the specified rail-pressure sensor and relief valve

• Designed for common-rail diesel injection pressure

• Engine-calibration-specific fuel volume and port arrangement

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21860425 (current OEM reference)

  

OEM / Related Numbers:

  

• 21785960 / 22236215 - injectors

• 3801627 / 3801661 - genuine remanufactured injectors

• 993664 - injector O-ring

• 21228824 - injector gasket

• 21453372 - injector screw

• 21786627 - injector yoke

• 21859185 - injector insert sleeve

• 21888175 / 21888177 / 21888179 / 21888181 - high-pressure fuel pipes

• 22031626 - rail-pressure sensor

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta TAD5 industrial diesel engine systems

  

Typically suits:

  

• Engine / drive models:

• TAD540VE

• TAD541VE

• TAD542VE

  

• HP Range: Approximately 160HP - 250HP, depending on rating

• Engine Type: 5.1L inline four-cylinder turbocharged industrial diesel

• Year Range: Approximately 2010 - 2021

• Serial / Fitment Note: Confirm the complete engine, drive or equipment product number and serial number before ordering.

  

🔌 Function

  

Stores and distributes high-pressure diesel fuel evenly to the injectors while allowing the control unit to monitor and regulate rail pressure.

  

Common signs of failure:

  

• Hard starting or no start

• Rail-pressure fault codes

• Fuel leakage around a port or fitting

• Unstable idle or reduced power

• Internal contamination or damage after high-pressure pump failure

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 927.22 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 927.22 AUD | In stock |

## Images

- 21860425 Common Rail | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21860425-common-rail-genuine-volvo-penta)
> Updated: 2026-08-03