XCMG Fuel Line OEM 800172391 – Precision High-Pressure Common Rail Fuel Delivery for Articulated Dump Trucks

The XCMG Fuel Line 800172391 is a precision high-pressure steel tube that connects the common rail accumulator to the fuel injectors in the advanced diesel engines powering XCMG articulated dump trucks (ADTs). This genuine XCMG 800172391 fuel line is manufactured from seamless cold-drawn single-wall steel tube per ISO 8535-1 Class 2, designed to withstand extreme injection pressures up to 1,800 bar (180 MPa / 26,100 psi) without burst or leakage. XCMG XDA30, XDA40, XDA45, XDA45U, and TA30 ADTs rely on 800172391 for leak-free fuel delivery, precise injection timing, and optimal combustion efficiency under the extreme loads of mining and heavy construction.

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Parameter	Specification / Detail
OEM Part Number	800172391
Product Name	High-Pressure Fuel Line / Common Rail Injection Pipe
Brand	XCMG (Genuine OEM)
Material	Seamless Cold-Drawn Single-Wall Steel Tube (ISO 8535-1 Class 2)
Maximum Operating Pressure	≥ 1,800 bar (180 MPa / 26,100 psi)
Nominal Outer Diameter	6.0 mm – 8.0 mm (Engine‑Specific)
Wall Thickness	1.0 mm – 1.5 mm
Connection Type	60° Female Cone (ISO 13296) with Flanged Union Nut
Installation Torque (Union Nut)	24.5 N·m – 28.4 N·m (2.5 – 2.9 kgf·m, 18.1 – 20.1 lb·ft)
Surface Finish	Zinc‑Phosphate / Trivalent Chromate Passivation (Corrosion Protection)
Compatible ADT Models	XCMG XDA30, XDA40, XDA45, XDA45U, TA30, XDA60
Compatible Engines	Mercedes‑Benz OM460LA / OM502, Yuchai YC6K, Weichai WP13
Standards Compliance	ISO 8535‑1:2016, ISO 13296:2016
Quality Certifications	IATF 16949:2023, ISO 9001:2025
Country of Origin	China (XCMG Group)

The XCMG XDA45U articulated dump truck is powered by a Mercedes‑Benz OM471 inline six‑cylinder diesel engine delivering 390 kW (523 hp) at 1,600 rpm and 2,600 N·m of peak torque at 1,300 rpm. The XDA45U is designed for operation in environments from -25°C to 40°C and meets Euro V emission standards. Its common rail fuel injection system operates at pressures up to 1,800 bar (180 MPa / 26,100 psi), independent of engine speed and injected fuel quantity. The fuel line 800172391 connects the high-pressure accumulator (common rail) to each injector, delivering precisely metered fuel pulses at the exact pressure demanded by the ECU. The high-pressure pump compresses fuel up to 1,600 bar (160 MPa / 23,206 psi) and supplies it to the common rail, which is connected to the injectors via high-pressure fuel pipes like 800172391.

The XCMG XDA40 articulated dump truck, which carries a 39,000 kg payload, is powered by the Mercedes‑Benz OM502 V8 diesel engine producing 350 kW (475 hp) at 1,800 rpm and 2,300 N·m of torque at 1,300 rpm. In this V8 engine, the common rail system uses a high-pressure fuel pump to continually generate system pressure. The fuel line 800172391 serves as the critical interface between the rail and each injector, withstanding pressure spikes while maintaining dimensional stability. A solenoid valve inside each injector controls injection timing and quantity, and the precision fuel line is essential for ensuring that the high-pressure fuel reaches the injector without leakage or pressure drop.

The fuel line 800172391 is manufactured from seamless cold-drawn single-wall steel tube, conforming to ISO 8535‑1:2016 Class 2 specifications for high‑pressure fuel injection pipes used on diesel engines. After drawing, the tube is heat‑treated to relieve residual stresses and then precision‑bent to the exact geometry required for each engine configuration. The ends are machined to form a 60° female cone sealing surface, which mates perfectly with the corresponding male cone on the common rail and injector ports. This metal‑to‑metal cone seal eliminates the need for elastomer gaskets, providing a leak‑tight connection that can withstand extreme pressure cycles without deterioration.

The flanged union nuts are manufactured from high‑strength carbon steel with a zinc‑phosphate surface treatment that provides corrosion protection. The complete fuel line assembly is then pressure‑tested to 1.5× maximum operating pressure (≥ 2,700 bar) to verify leak‑tight integrity and burst resistance. Each production batch is 100% dimensionally inspected using coordinate measuring machines to ensure consistent tube length, bend angles, and cone geometry. Random samples are tested for tensile strength, elongation, and hardness, with material certificates (EN 10204 3.1) available for every heat number. The XCMG XDA45U achieves a remarkable uptime rate exceeding 92% and fuel consumption 7% lower than competing models in the same weight class, with the reliability of the fuel system and components such as the 800172391 fuel line being a major contributing factor.

XCMG field data from XDA40 and XDA45U ADT fleets operating in Australian iron ore mines and Chilean copper mines demonstrates that the genuine fuel line 800172391 consistently exceeds 10,000‑12,000 service hours when installed correctly and used with clean, high‑quality diesel fuel. The XDA45U combines strong material flow with smooth control across varied terrain, and its durable structure ensures longevity in heavy use. The pump‑controlled hydraulic system and load‑sensitive steering system enhance system stability, quicken troubleshooting, and save more energy.

The common rail injection system operates with extremely high pressure — approximately 1,800 bar (180 MPa / 26,100 psi). For safety reasons, never perform any work on the injection system with the engine running or within 30 seconds after the engine stops, as residual pressure can cause severe injury. A failed fuel line can cause a high‑pressure fuel leak, resulting in fuel spray, fire hazard, and engine performance degradation. Aftermarket fuel lines, which may be manufactured with incorrect tube material, inadequate heat treatment, or inaccurate cone geometry, often fail prematurely due to cracking, cone seal leakage, or burst under pressure. The XCMG XDA45U is also designed to run continuously in operating environments ranging from -25°C to 40°C, and the 800172391 fuel line is engineered to maintain sealing integrity across this full temperature range.

Replacing a high‑pressure fuel line requires strict adherence to safety procedures and torque specifications. Before installation, relieve the fuel system pressure by turning the ignition OFF and disconnecting the battery. Thoroughly clean the sealing cones on the common rail and injector, as any dirt or debris can compromise the metal‑to‑metal seal. Always use a new fuel line — never reuse a used high‑pressure fuel line, as the tube may have work‑hardened or the cone seal may be deformed. Position the fuel line without tension or twisting. Hand‑tighten the union nuts to ensure they are seated correctly, then torque them to the specified value using a calibrated torque wrench. For the OM460LA and OM502 engines, the high‑pressure fuel pipe installation nut torque is 24.5 N·m – 28.4 N·m (2.5 – 2.9 kgf·m, 18.1 – 20.1 lb·ft).

After installation, start the engine and check for any external fuel leaks. Perform a fuel system leak test as outlined in the service manual. If any fuel seepage is observed, the line must be replaced, as retightening may not restore the sealing integrity of the 60° cone interface. The XCMG XDA45U driver’s cab and engine hood are both flipping designs, and the cab is integrated with a centralised lubrication system, all of which make maintenance more convenient and more efficient. The 6×6 drive and friction‑disk type inter‑wheel/inter‑axle differential locks enhance passing performance, reliability, and riding stability, while the ROPS & FOPS‑certified cab increases driver safety and comfort. These design features facilitate easier access to the fuel system components, including the 800172391 fuel line, during routine service.

The fuel line 800172391 is compatible with all current XCMG articulated dump trucks, including the XDA30 (30‑ton payload, Yuchai YC6K engine), XDA40 (39‑ton payload, OM502 V8), XDA45 (41‑ton payload), XDA45U (41‑ton payload, OM471 inline‑6), TA30 (30‑ton payload), and XDA60 (60‑ton payload). For the Yuchai YC6K and Weichai WP13 engine platforms, the fuel line dimensions and torque specifications are consistent, though some variants may require different tube lengths or bend angles based on the specific engine configuration. The XDA45U also requires no urea, has no aftertreatment, and meets emission standards, with the common rail system directly contributing to these compliant operation characteristics.

XCMG’s manufacturing facility for the fuel line 800172391 is certified to IATF 16949:2023 and ISO 9001:2025. The fuel line is stocked in regional warehouses in the United States (Houston), Netherlands (Rotterdam), South Africa (Johannesburg), Australia (Perth), and China (Xuzhou). Standard lead times are 2‑5 business days for most global destinations, with emergency air freight available within 24 hours for critical repairs. Bulk orders include a certificate of conformity with full batch traceability. Use the inquiry button above to request a quote or place an order for genuine XCMG fuel line 800172391.

XCMG and the XCMG logo are registered trademarks of Xuzhou Construction Machinery Group Co., Ltd.
OEM part number 800172391 is an original manufacturer reference for a genuine XCMG high‑pressure fuel line. All specifications are derived from XCMG engineering standards and field validation data.