3886062 Volvo Penta Fuel Rail | Genuine Used Part

🔧 Product Description

Genuine Used Volvo Penta D4 Common-Rail Fuel Manifold - Part Number: 3886062

A genuine pre-owned Volvo Penta high-pressure common-rail fuel manifold for selected D4 marine diesel engines.

The rail receives pressurised diesel fuel from the high-pressure pump, stores it at a controlled pressure and distributes it to the individual injectors through rigid high-pressure lines.

This is a precision high-pressure diesel component. Correct engine identification, internal cleanliness and sealing are essential.

⚙️ Key Features

• Genuine Volvo Penta used fuel rail
• Correct OEM part number 3886062
• High-pressure common-rail configuration
• Used on selected Volvo Penta D4 marine diesels
• Provides a shared pressurised fuel supply for the injectors
• Includes rail ports for pressure-control and fuel-line components
• Original Volvo Penta machined fuel-system component

🚤 Compatibility

Commonly used on

• Volvo Penta D4 common-rail marine diesel engines
• Inboard propulsion systems
• Aquamatic sterndrive installations
• Early-generation electronically controlled D4 fuel systems

Verified example applications include

• D4-180I-B
• D4-180I-C
• Additional D4 installations whose fuel-system catalogue lists 3886062 or 3588739

Important fitment note

• Confirm the full engine designation, product number and serial number.
• Volvo Penta D4 and D6 engines use multiple fuel rails that are not automatically interchangeable.
• High-pressure pipe positions, pressure valves and sensor arrangements must match the original system.
• Injectors, pressure sensor, control valve and high-pressure lines are included only when shown or described.

🔌 Function

The rail dampens pressure fluctuations from the high-pressure pump and supplies each injector with fuel at a stable commanded pressure.

⚠️ Common Signs of Failure

• Difficult starting
• Engine cranks without starting
• Rail-pressure fault codes
• Reduced-power or limp mode
• Fuel pressure rises too slowly
• Engine stalls under load
• Diesel fuel leaks from a pipe connection
• Pressure-control valve does not regulate correctly
• Internal contamination from pump wear
• Metal debris is found in the fuel system

🛠️ Service Notes

Recommended checks before installation

• Keep every fuel port sealed until installation
• Inspect the rail for rust, water or metal contamination
• Confirm the pressure valve and sensor arrangement
• Replace all specified high-pressure pipe seals
• Never bend or reshape rigid injector pipes
• Check the high-pressure pump for internal wear
• Flush the low-pressure fuel system
• Use clean diesel-service tools and procedures
• Perform Volvo diagnostic rail-pressure testing after installation
• Check carefully for leaks without placing hands near a pressurised diesel spray

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3588739 - Earlier common-rail reference
• 3886062 - Later Volvo Penta rail reference

OEM / Related Numbers

• 3886062
• 3588739
• Related high-pressure pump reference: 3803633
• Related pressure-retaining valve: 3584427
• Related return connection: 21822234
• Related high-pressure lines vary by engine model
• OEM Description: Rail
• System: High-Pressure Common-Rail Fuel Injection

Aftermarket / Verified Equivalents

• No aftermarket equivalent

Service alternatives

• Professionally inspected used OEM rails
• Specialist diesel-system testing and cleaning of the original rail
• Replacement pressure-control components where separately serviceable

📦 Condition

• Genuine Volvo Penta used part
• Pre-owned high-pressure diesel component
• Cosmetic marks and fuel residue may be present
• Internal cleanliness and pressure integrity must be verified before installation
• Supplied components are limited to those shown or described
• Supplied in protective or equivalent packaging