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