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: 21165497 / VOE 21165497), also known as High-Pressure Injection Supply Line, is an essential heavy-duty powertrain part designed for VOLVO mid-range electronic diesel engines. This thick seamless steel pipeline connects high-pressure injection pump (21147446), common rail manifold (20798896) and electronic unit injectors (20798114), capable of enduring extreme high-pressure fuel pulses. Replacing bent, cracked or damaged fuel lines effectively prevents high-pressure diesel leakage, unexpected engine shutdown, unstable fuel atomization and potential fire hazards.

Core Technical Advantages

• Cold-Drawn Seamless High-Tensile Steel: Adopts high-strength carbon steel alloy with uniform internal structure, resisting deformation and fatigue cracking under frequent pressure surges.

• Precision Inverted Cone Joints: CNC machined hardened connecting ends achieve tight metal-to-metal sealing to eliminate fuel leakage completely.

• Inner & Outer Zinc Anti-Rust Treatment: Passivation treatment effectively prevents rust, biodiesel corrosion and high-temperature surface scaling.

• CNC Mandrel Bending Structure: Ensures consistent inner diameter, reduces fuel flow turbulence and fits original engine layout to avoid friction damage.

Technical Specifications

Master Application Fleet Guide

This genuine high-pressure fuel line is widely used on multiple series of VOLVO construction machinery:

• Medium Crawler Excavators: EC140C, EC160C, EC180C, EC170D, EC200B, EC210B, EC210E, EC220D, EC220E

• Motor Graders & Compactors: G930, G946, G960, G990 Motor Graders, SD115 Soil Compactors

• Wheel Loaders: L60F, L90F

• Asphalt Paving Machinery: P6820D, P6870D Asphalt Pavers

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

High-pressure common rail fuel lines are defined as single-use safety components. Reuse after disassembly will lead to seal failure and hidden oil leakage risks. It is recommended to stock model 21165497 for full fuel system maintenance. Match with high-pressure fuel pumps, common rail pressure sensors, fuel water separators and fuel injectors to form complete overhaul packages.

Common Field Failure Symptoms

• Diesel seepage or atomized oil mist at connecting ports caused by scratched, rusted or extruded cone sealing surfaces

• Insufficient engine power and dashboard alert of fuel rail pressure faults due to micro-crack pressure loss

• Difficult ignition or instant flameout after startup resulted from insufficient common rail starting fuel pressure

Global Brand Cross-Reference Matrix

All machine models and brand names are only for compatibility reference. Our genuine high-pressure fuel lines ensure stable and safe fuel supply for all kinds of VOLVO engineering equipment worldwide.