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: 21147486 / VOE 21147486) is a critical heavy-duty powertrain component specially engineered for VOLVO B, D and E series electronic diesel engines. Manufactured with thick seamless steel structure, it acts as the core high-pressure fuel delivery channel connecting high-pressure injection pump (21147446), common rail manifold (20798896) and electronic unit injectors (20798114). It stably withstands ultra-high frequent fuel pressure impacts. Timely replacement of bent, cracked or damaged pipelines effectively avoids high-pressure diesel leakage, sudden engine shutdown, unstable fuel atomization and potential fire hazards.

Core Technical Advantages

• Cold-Drawn Seamless High-Strength Steel: Uniform internal material structure, strong pressure resistance, no expansion and no fatigue crack under long-term extreme pressure impact.

• Precision Inverted Cone Sealing Joint: CNC machined hard metal connectors achieve tight metal-to-metal fit, realizing complete zero-leakage sealing effect.

• Dual-Sided Zinc Anti-Corrosion Treatment: Inner and outer passivation protection effectively resist rust erosion, biodiesel corrosion and high-temperature surface oxidation scaling.

• Vibration-Proof Integral Bending Design: Accurate mandrel bending keeps consistent inner diameter, reduces fuel flow turbulence and perfectly fits original engine installation position to eliminate friction wear.

Technical Specifications

Master Application Fleet Guide

This high-pressure fuel line is widely compatible with mainstream heavy-duty VOLVO construction machinery:

• Heavy Crawler Excavators: EC200D, EC200E, EC210D, EC210E, EC240B, EC250D, EC290B, EC300D

• Backhoe Loaders & Wheel Loaders: BL60, BL71B, L110E

• Road Construction Machinery: G710B, G746B, G960, G990 Motor Graders, ABG8820B, P8820D Pavers, SD135B Soil Compactors

• Special Engineering Equipment: PL3005D Tracked Pipelayers

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

High-pressure common rail fuel lines belong to mandatory single-use safety parts. Once disassembled and reused, the cone sealing surface will lose compression accuracy and cause hidden oil leakage risks. It is recommended for global spare parts distributors and engine repair factories to stock model 21147486 uniformly, and match with supporting injection pumps, common rail sensors, fuel water separators and injectors to form complete engine overhaul spare parts packages.

Common Field Failure Symptoms

• Diesel dripping or mist leakage at pipeline joints caused by scratched, rusted or deformed cone sealing surfaces

• Engine power drop and instrument prompt fuel rail pressure fault codes due to pipeline micro-crack pressure loss

• Difficult cold start or automatic flameout after startup caused by insufficient common rail starting fuel pressure

Global Brand Cross-Reference Matrix

All equipment models and brand names are only used for compatibility matching reference. Our genuine high-pressure fuel lines provide long-term stable and safe fuel delivery guarantee for VOLVO full-series engineering machinery worldwide.