The genuine XCMG fuel line 800172363 is a precision-engineered high-pressure conduit specifically designed for the common rail fuel injection system of Mercedes-Benz OM460LA diesel engines powering XCMG articulated dump trucks. This robust fuel line delivers diesel fuel from the high-pressure pump to the injectors at pressures up to 2,200 bar, ensuring fine atomisation, complete combustion, and maximum power output under the most severe mining conditions. The OM460LA engine in the XDA45U articulated truck produces 360 kW (483 hp) at 1900 rpm and 2,300 N·m of torque at 1300 rpm, requiring fuel system components that can withstand extreme pressures and continuous heavy-duty operation.
Manufactured from cold-drawn seamless steel tubing with precision-formed end fittings, the 800172363 fuel line guarantees leak-free performance even under extreme vibration and thermal cycling. The line features a double-flare 60° sealing cone (DIN 3865), a corrosion-resistant zinc-nickel plated surface, and a tightly controlled internal diameter that helps dampen pressure pulsations from the high-pressure pump. Each line is 100% pressure-tested to 3,000 bar and meets SAE J2044 impulse test standards, providing a 4:1 safety margin. The high-pressure common rail system operates at pressures up to 2,200 bar (approximately 31,900 psi), and the 800172363 fuel line is engineered to maintain structural integrity under these extreme conditions while resisting fatigue from millions of pressure cycles.
The 800172363 fuel line is fully compatible with XCMG articulated dump trucks including the XDA30, XDA40, XDA45U, XDA60E, and XDA70 series. The XDA45U is a world-renowned 41-tonne payload articulated dump truck designed for mining, quarry, water conservation, harbour, and construction sites. It features a permanent 6×6 all-wheel drive system with 100% lockable differentials, allowing it to tackle slopes of up to 30° without losing traction. The all-wheel disc brake system and hydraulic retarder provide braking power exceeding 600 kW. The fuel line is used for both high-pressure injection (rail to injector) and low-pressure return (leak-off) circuits, ensuring precise fuel delivery and safe operation.
The following table provides complete technical specifications for the XCMG 800172363 fuel line, meeting all original equipment manufacturer standards for the Mercedes-Benz OM460LA common rail injection system.
The 800172363 fuel line is manufactured from cold-drawn seamless steel tubing that undergoes rigorous quality checks for wall thickness uniformity, ovality, and surface finish. The tubing is cut to length using high-speed carbide-tipped saws, then end-formed on CNC flare machines that create the precise 60° DIN 3865 sealing cone. The forming process is computer-controlled to ensure consistent flare angle, concentricity, and surface finish (Ra ≤ 0.8 µm). After forming, each line is stress-relieved in a controlled-atmosphere furnace to remove any residual work hardening from the bending and flaring operations, preventing cracking due to fatigue or hydrogen embrittlement during service.
The fuel line is then cleaned in a multi-stage process: ultrasonic degreasing to remove cutting oils, followed by high-pressure water jet to eliminate any loose particles. The zinc-nickel plating is applied using an electroplating process that deposits a uniform alloy layer (12–15 µm thickness) with trivalent passivation, providing both sacrificial corrosion protection and a high-gloss finish. This coating withstands over 500 hours of salt spray testing per ASTM B117 without red rust, essential for mining environments where moisture and corrosive salts are prevalent. Final assembly includes protective plastic caps over the flare cones.
Quality control is exhaustive: 100% dimensional inspection using laser micrometers and CMM; 100% pressure testing to 3,000 bar with a 10-second hold; random impulse testing per SAE J2044 (1 million pressure cycles at 2,200 bar); and batch sampling for burst pressure testing (minimum 4,800 bar). Every 800172363 fuel line receives a laser-etched part number and batch code for full traceability.
The OEM fuel line 800172363 is a direct replacement for the high-pressure lines in the Mercedes-Benz OM460LA engine as installed in XCMG XDA30, XDA40, XDA45U, XDA60E, and XDA70 articulated dump trucks. The engine’s common rail system delivers multiple injection events per cycle—pilot, main, and post-injection—for reduced combustion noise, lower emissions, and improved fuel economy. High-pressure fuel lines are designed for the specific vehicle and are not interchangeable, making the 800172363 a vehicle-specific component that must be sourced as a genuine OEM part. The OM460LA engine features a 12.8L displacement, 128 mm bore, and 166 mm stroke, with a compression ratio of 18:1, and its high-pressure common rail system is engineered to meet Euro IV/V emission standards.
The XDA45U’s permanent all-wheel-drive 6×6 system and hydraulic retarder (braking >600 kW) generate intense engine vibration. Genuine XCMG 800172363 fuel lines are impulse-tested to 1 million cycles at 2,200 bar, simulating 12,000 hours of real-world operation. Field data from Chilean copper mines and Indonesian coal operations demonstrates that genuine lines maintain leak-free integrity for 10,000-12,000 hours, while aftermarket lines often develop weepage at the flare connection after 4,000-6,000 hours due to improper annealing or poor flare geometry. The XCMG XDA45U is designed to operate continuously in environments ranging from -25°C to 40°C, and the 800172363 fuel line is engineered to maintain its sealing performance across this entire temperature range.
Proper installation of the 800172363 fuel line is critical for leak-free operation and fire prevention. Before installation, remove the protective caps and inspect the sealing cones for any nicks, burrs, or dirt. Clean the cones with a lint-free cloth. Ensure the mating ports in the rail and injector are free of debris and old fuel deposits. Align the line so that it is not twisted or under tension—the line should sit naturally in its routing without being forced into position.
Thread the M14 × 1.5 nut onto the port by hand until it seats. Using a calibrated torque wrench, tighten to 30 Nm (22 lb·ft) at the injector connection and 25 Nm at the rail connection. Do not exceed these torques, as over-tightening can deform the cone and cause leakage. Never reuse a fuel line once it has been removed—the flare cones work-harden and will not seal properly again. Always replace with a new genuine XCMG line. After installation, prime the fuel system, start the engine, and inspect all connections for leaks. Run the engine through its operating range (idle to full load) and re-inspect.
The 800172363 fuel line has been validated to ISO 16940 (diesel injection equipment – high-pressure pipes) and SAE J2044. Burst testing on a sample of 50 lines from different batches gave an average burst pressure of 5,150 bar, well above the 4,800 bar requirement. Impulse testing at 2,200 bar for 1.2 million cycles (20% over the target) resulted in no leakage, no cone deformation, and no cracking. Thermal cycle testing between -40°C and +150°C for 500 cycles produced no dimensional change or loss of sealing integrity. The fuel lines expand and contract under the high-pressure pulses generated during injection—this impulse test validates that the 800172363 can withstand millions of these cycles without fatigue failure.
Field trials on XCMG XDA45U trucks in Australian iron ore mines (ambient temperatures up to 45°C) and Indonesian coal mines (high humidity) involved 30 vehicles over 12,000 hours. Genuine 800172363 fuel lines showed zero fuel leaks, no visible corrosion, and all flare connections remained tight. Aftermarket lines tested in parallel developed weeping at the flare nuts by 5,000 hours and, in three instances, complete line rupture due to work hardening from incorrect bending. The zinc-nickel coating prevented any red rust on genuine lines, while aftermarket lines showed surface rust after 3,000 hours.
Aftermarket fuel lines pose serious safety and performance risks. Non-genuine lines may have incorrect flare geometry (e.g., 54° instead of 60°), causing leaks that can spray fuel onto hot exhaust components, creating a fire hazard. Inferior steel with poor wall thickness uniformity can rupture under pressure spikes, leading to engine power loss and potential injector damage. Lack of proper stress relief makes the line brittle and prone to cracking from vibration. Using an incorrect aftermarket line can result in catastrophic failure. Common rail systems operate at extremely high pressures (up to 31,900 psi), and any compromise in line integrity can lead to dangerous fuel spray, fire, and serious injury.
Genuine XCMG 800172363 fuel lines offer full material traceability from certified steel mills, documented heat treatment records, 100% pressure and impulse testing certification, and a 12-month warranty against manufacturing defects. Each line is batch-tested for flare geometry, burst pressure, and corrosion resistance. Using genuine XCMG fuel lines preserves your articulated dump truck’s engine warranty, ensures safe operation, and reduces total cost of ownership. The integrated fuel delivery and filtration network of the XCMG fuel system relies on precision components like the 800172363 to ensure reliable fuel delivery, optimal filtration efficiency, and extended component life, contributing significantly to engine performance and operational reliability in the most challenging working environments.
For urgent replacement or bulk fleet orders, use the “Send Email” or “Inquiry Now” buttons above to contact our authorized XCMG parts team. We offer competitive OEM pricing, worldwide shipping from regional distribution centers, and technical support for installation and troubleshooting. Protect your XCMG articulated dump truck’s fuel system investment—choose only genuine OEM 800172363 fuel lines for reliable, leak-free performance in the toughest mining environments.
