Genuine VOLVO High-Pressure Fuel Pipe Line Assembly — Common-Rail Injection Supply Line Solution

The Genuine VOLVO Premium Heavy-Duty High-Pressure Fuel Pipe Line Assembly (Part Numbers: 21302231 / VOE 21302231), also named High-Pressure Injection Supply Line, is a critical severe-duty powertrain part designed for VOLVO mid-range electronic diesel engines. Made of thick-walled seamless steel, it connects high-pressure injection pump (21147446), common rail manifold (20798896) and electronic unit injectors (20798114), stably enduring ultra-high fuel pressure pulses. Timely replacement of deformed, cracked or worn fuel lines effectively prevents diesel leakage, sudden engine stall, poor fuel atomization and potential fire risks.

Core Technical Advantages

• Cold-Drawn Seamless High-Tensile Steel: High-strength alloy structure features even density, resisting expansion and fatigue fracture under frequent extreme pressure impact.

• Precision Inverted Cone Fittings: CNC machined hard metal joint ends achieve perfect metal-to-metal sealing, thoroughly eliminating fuel seepage at connection ports.

• Dual-Layer Anti-Corrosion Treatment: Inner and outer zinc passivation coating protects pipelines from rust, biodiesel corrosion and high-temperature oxidation scaling.

• Vibration-Proof Mandrel Bending Design: Accurate forming ensures uniform inner diameter, avoids fuel flow turbulence and fits original engine layout to eliminate friction wear.

Technical Specifications

Master Application Fleet Guide

This high-pressure fuel line is widely applicable to VOLVO mainstream construction machinery:

• Medium Crawler Excavators: EC200B, EC210B, EC210E, EC220D, EC220E

• Wheeled Excavators: EW145B, EW205D

• Wheel Loaders: L60F, L90F

• Asphalt Paving Equipment: P6820D, P6870D

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

High-pressure fuel lines belong to disposable safety wearing parts. Reused pipelines will cause cone seal failure and hidden leakage risks after disassembly. It is recommended to stock up model 21302231 for engine fuel system overhaul. Match and sell supporting high-pressure fuel pumps, common rail pressure sensors, fuel water separators and fuel injectors to form complete maintenance kits.

Common Field Failure Symptoms

• Diesel dripping or atomized leakage at pipe joint nuts caused by scratched, rusted or extruded deformed cone sealing surfaces

• Insufficient engine power and dashboard pop-up fuel rail pressure fault codes due to pipeline micro-crack pressure loss

• Difficult starting or immediate flameout after startup resulting from insufficient common rail starting pressure

Global Brand Cross-Reference Matrix

All brand names and equipment models are only for compatibility reference. Our genuine high-pressure fuel lines provide stable and safe fuel delivery protection for VOLVO engineering machinery all over the world.