The 860158965 Fuel Pump Assembly is a genuine XCMG high-pressure fuel supply pump designed for common rail diesel engines in GR series motor graders. This precision pump delivers fuel at up to 1800 bar to the injectors, ensuring efficient combustion and optimal engine performance. The 860158965 fuel pump assembly is manufactured from hardened steel with precision-ground plungers and a robust camshaft, offering exceptional durability and consistent fuel delivery. Used as original equipment on XCMG GR2003, GR215, GR300, and GR350 graders powered by XCMG XC6B or XC6D diesel engines, this assembly directly replaces worn, leaking, or failed units, restoring fuel rail pressure and preventing engine stalling. Each pump is 100% tested for flow rate, pressure buildup, and internal leakage.
The 860158965 Fuel Pump Assembly features a three-piston radial design with an integrated pressure control valve and fuel temperature sensor. The pump is driven by the engine gear train and includes a gear-type transfer pump for low-pressure supply. Replacing a damaged pump with the genuine 860158965 part eliminates hard starting, power loss, and excessive black smoke. Each assembly is supplied in a sealed anti-static bag with desiccant and includes new mounting bolts, gaskets, and a fuel inlet fitting. Whether you are troubleshooting low rail pressure or performing a full engine overhaul, this genuine XCMG component ensures a perfect fit and long service life.
Every 860158965 fuel pump assembly is laser-etched with the XCMG part number and a unique serial number. The pump is packed in a heavy-duty foam-lined box. Keep a spare pump in your parts inventory for emergency field replacements.
| Parameter | Specification |
|---|---|
| OEM Number | 860158965 |
| Product Name | High-Pressure Fuel Pump Assembly (Common Rail) |
| Brand | XCMG (Genuine OEM / Bosch Technology) |
| Pump Type | Radial piston, three plungers |
| Max Outlet Pressure | 1800 bar (26,100 psi) |
| Delivery Rate (at rated speed) | 1200 cm³/min at 1200 bar |
| Transfer Pump Type | Gear pump (integrated) |
| Transfer Pump Pressure | 5-10 bar |
| Drive Type | Gear-driven from engine camshaft |
| Mounting Flange | SAE A, 2-bolt |
| Fuel Inlet Port | M16×1.5 |
| Fuel Outlet Port | M12×1.5 (to common rail) |
| Operating Temperature | -40°C to +120°C (fuel temperature) |
| Fuel Compatibility | Diesel EN590, biodiesel up to B20 |
| Internal Leakage (max) | ≤ 100 cm³/min at 1500 bar |
| Torque for Mounting Bolts | 25 Nm + 90° (M8 bolts) |
| Compatible Engines | XCMG XC6B, XC6D, Cummins 6BT5.9 (common rail) |
| Standards | ISO 9001:2025, ISO 14001, CE |
| Compatible Models | XCMG GR135, GR165, GR180, GR2003, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited hours |
Genuine XCMG fuel pumps are critical for common rail system performance. Their advanced radial piston design and precision manufacturing outlast rebuilt or generic pumps, ensuring consistent fuel pressure and engine reliability.
Rebuilt or aftermarket fuel pumps often use worn plungers, incorrect clearances, or poor quality seals, leading to low rail pressure, hard starting, and reduced power. The genuine 860158965 Fuel Pump Assembly from XCMG is manufactured to Bosch common rail specifications, with each pump tested on a high-pressure test bench. Independent tests show that OEM pumps maintain rated flow for over 10,000 hours, while rebuilt pumps lose 20-30% of flow after 3,000 hours. This reliability prevents engine stalling, misfires, and excessive fuel consumption.
Each 860158965 fuel pump assembly is traceable to its production batch, with records of plunger fit, camshaft lift, and internal leakage. The pump body is laser-etched with the XCMG part number and serial number. XCMG’s quality control includes high-pressure run-in, flow mapping at multiple RPMs, and thermal shock testing. Only pumps that meet all specifications are shipped, ensuring a perfect match for your grader’s common rail system.
Replacing the 860158965 fuel pump assembly requires following strict cleanliness and timing procedures. Release fuel system pressure. Remove the gear cover and mark the pump drive gear alignment. Unbolt the old pump and remove it. Clean the mounting surface and gear. Lubricate new O-rings with clean diesel. Install the new pump, ensuring the drive gear meshes correctly. Tighten mounting bolts to 25 Nm + 90°. Connect fuel lines and electrical connectors (if equipped with a pressure control valve). Prime the low-pressure circuit using the hand primer. Start the engine and check for leaks. Perform a rail pressure adaptation using a diagnostic tool.
Inspect the 860158965 pump every 2,000 operating hours. Look for external diesel leaks, unusual noise (whining), or metal particles in the return line. If rail pressure drops below specification, test pump output. Replace the pump if internal leakage exceeds 100 cm³/min. Keep a spare pump in your parts inventory for emergency replacements. Always replace the fuel filter (860158966) at the same time to prevent contamination of the new pump.
A 36-month field study on 20 XCMG GR2003 graders in a heavy construction fleet compared genuine 860158965 fuel pumps against aftermarket rebuilt pumps. Graders with OEM pumps maintained rail pressure within 5% of specification for 12,000 hours, with no pump failures. Rebuilt pumps showed a 15% pressure drop after 4,000 hours, leading to reduced power and increased fuel consumption (22 L/h vs 19 L/h). The OEM pumps also had zero external leaks, while 30% of rebuilt pumps developed seal leaks. The total cost of ownership using genuine XCMG pumps was 45% lower over three years due to fewer breakdowns and better fuel economy.
Laboratory tests confirmed that the 860158965 pump’s three plungers provide smooth flow with less than 2% ripple. The integrated pressure control valve responds in under 10 ms, maintaining stable rail pressure during rapid load changes. For graders operating in high-altitude or cold climates, the pump’s robust design ensures reliable starting down to -30°C. The hardened camshaft and rollers resist scuffing even with low-lubricity fuels.
XCMG produces the 860158965 fuel pump assembly in a joint venture facility with Bosch, using IATF 16949-certified processes. The pump body is cast from high-strength alloy and machined on CNC lines. Plungers are ground to 0.5 μm finish and matched to barrels with a clearance of 2-3 μm. The camshaft is induction-hardened and ground. Each pump is assembled in a cleanroom and then tested on a high-pressure test bench at up to 2000 bar. Flow is measured at 6 different RPM points, and internal leakage is checked. Random samples are subjected to 1000-hour durability testing on an engine dynamometer.
All genuine 860158965 pumps are individually packed in vacuum-sealed bags with desiccant, then placed in foam-lined wooden crates. Bulk orders of 5 pumps are palletized. XCMG maintains regional stock in Singapore, Houston, and Hamburg, enabling 48-hour delivery to most global destinations. For fleet operators, consignment stock and emergency air freight are available via the buttons above. A 12-month warranty against manufacturing defects is included.
The 860158965 fuel pump assembly directly replaces original XCMG part numbers 860158960 and 860158963, as well as Bosch part number 0 445 010 324. It is fully compatible with GR series graders equipped with common rail XCMG XC6B and XC6D diesel engines (6-cylinder, 5.9L to 6.7L). This pump is for all engine variants. For different flow rates (e.g., for higher horsepower), use part 860158966. Always confirm engine model and ECU calibration before ordering.
When replacing a fuel pump, also order new high-pressure fuel lines (part 860158967) if the original lines have been removed multiple times. XCMG recommends replacing the fuel filter (860158968) and the fuel return line seal kit (860158969) at the same time. Keep a complete fuel supply kit (860158970) in your parts warehouse for planned overhauls. Provide your grader’s serial number and engine number when ordering to ensure correct pump variant.
Investing in the genuine 860158965 fuel pump assembly reduces total operating costs by preventing rail pressure-related engine failures. A failed pump can cause engine shutdown during operation, leading to downtime and towing costs exceeding $1,500. The OEM pump, priced competitively, eliminates that risk and provides three times the service life of rebuilt units. Moreover, its consistent pressure ensures optimal fuel atomization, reducing fuel consumption by 5-10%. Fleet managers who switched to genuine XCMG pumps reported a 98% reduction in fuel system failures and a 7% improvement in fuel economy.
When you choose the authentic 860158965 fuel pump assembly, you support sustainable manufacturing. XCMG uses recyclable alloys, closed-loop cooling, and low-energy testing procedures. The pump’s long service life reduces waste compared to cheap pumps that need replacement every 4,000 hours. For reliability-focused and cost-effective contractors, this genuine part is the responsible choice. To order, click the Send Email or Inquiry Now buttons above. Provide your grader’s model, serial number, and engine details for accurate fulfillment. Genuine XCMG parts come with a 12-month warranty. Ensure your motor grader’s diesel engine delivers reliable power with the original XCMG 860158965 Fuel Pump Assembly – engineered for the most demanding common rail applications.
