The genuine XCMG Coolant Pump with OEM number 800172835 is a heavy-duty centrifugal pump engineered for XCMG articulated dump trucks, wheel loaders, and off-highway equipment powered by Cummins, Deutz, or XCMG diesel engines. This pump ensures continuous circulation of engine coolant through the radiator, cylinder block, and cylinder head, maintaining optimal operating temperature between 85°C and 95°C. Designed with a cast-iron housing, precision-balanced impeller, and high-temperature mechanical seal, the XCMG 800172835 coolant pump delivers reliable performance in extreme mining and construction environments.
The XCMG Coolant Pump 800172835 is the heart of the engine’s cooling system. It circulates coolant through the engine block, cylinder head, and radiator, removing excess heat generated by combustion. Proper coolant flow prevents overheating, which can cause head gasket failure, cylinder liner cavitation, and reduced oil life. A failing pump can lead to catastrophic engine damage, making timely replacement with genuine XCMG parts critical.
On AD60 and AD80 articulated dump trucks, the 800172835 pump is belt-driven from the crankshaft. Its high-flow impeller ensures even cooling of all cylinders, preventing hot spots. Field data shows that genuine XCMG coolant pumps outlast aftermarket copies by 2.5:1, reducing unplanned downtime and repair costs.
The 800172835 pump housing is made from high-grade cast iron (GG25), which resists corrosion from modern coolants and provides excellent dimensional stability under thermal cycling. The impeller is dynamically balanced to G6.3 grade, minimizing vibration and bearing stress. The double-row sealed ball bearing is pre-lubricated with high-temperature grease, eliminating the need for periodic maintenance.
The mechanical seal uses a carbon vs. ceramic mating face with an EPDM bellows (or FKM for high-temperature variants). This seal is tested for 10,000 hours of operation without leakage. The pump’s O-ring or gasket seal to the engine block is designed for single-use – always replace with the included new gasket.
The XCMG coolant pump 800172835 is a direct OEM replacement for many original part numbers, including 800172835A, 860124577, and 860298751. It is compatible with Cummins QSM11, Deutz TCD 2013, and XCMG’s own 9-liter engines. Always verify the engine serial number before ordering, as pulley offset and inlet orientation may vary.
For AD45 and AD100 models, XCMG offers specific variants with different pulley diameters to match fan drive ratios. The correct part can be identified by the engine nameplate. XCMG’s parts catalog provides an online cross-reference tool.
To replace the coolant pump, first allow the engine to cool completely. Drain the coolant into a suitable container (observe environmental regulations). Remove the drive belt, fan, and pulley (if applicable). Disconnect the heater hoses and coolant lines. Remove the mounting bolts (typically four M10 or M12).
Clean the engine block mating surface, removing all old gasket material. Install the new gasket (provided) and position the new XCMG 800172835 pump. Torque the mounting bolts to 25 Nm ± 3 Nm in a cross pattern. Reconnect hoses, install the pulley and belt, and tension per engine manual. Refill with the correct coolant mixture (50/50 ethylene-glycol).
Start the engine and check for leaks at the pump gasket and weep hole. A small amount of coolant from the weep hole may indicate seal wear – replace immediately. Run the engine until the thermostat opens, then re-check coolant level. Inspect the pump during every oil change for any signs of leakage or bearing noise.
Counterfeit coolant pumps sold as 800172835 often use low-quality bearings and seals. Symptoms include coolant leakage from the weep hole (seal failure), noisy operation (bearing wear), or reduced coolant flow (incorrect impeller design). Genuine XCMG pumps have a laser-etched part number on the housing, a holographic label on the box, and a casting mark indicating the foundry.
Another common issue is incorrect impeller material. Aftermarket pumps may use stamped steel impellers that crack over time, reducing flow. Genuine XCMG pumps use cast bronze or high-strength stamped steel with anti-cavitation coating. Inspect the impeller through the inlet port – genuine has a smooth finish and precise vane geometry.
Bearing failure: Counterfeit pumps may not have the correct axial preload, causing premature wear. Genuine XCMG bearings are pre-loaded and tested for 2,000 hours of simulated operation. Check the pump shaft for end-play – it should be less than 0.1 mm.
A failed coolant pump can cause engine overheating, leading to a blown head gasket ($2,500 repair) or a cracked cylinder head ($8,000+). Replacing the pump proactively every 4,000 hours with a genuine XCMG 800172835 unit ($180) is a small investment compared to major engine repairs.
Predictive maintenance: During daily checks, inspect the coolant pump weep hole. Any sign of wetness indicates seal wear; plan replacement soon. Also, listen for bearing noise (a grinding or chirping sound) with a mechanic’s stethoscope. If the engine runs hotter than usual (gauge above 105°C), restricted coolant flow from a failing pump may be the cause.
Payback analysis: A genuine XCMG pump costs approx. $180. If it prevents one engine overheat that would require a $3,000 in-field repair, the savings are immediate. For a fleet of 10 trucks, proactive replacement can eliminate thousands of dollars in unplanned downtime.
Every XCMG Coolant Pump 800172835 is manufactured under IATF 16949 and ISO 9001:2015 certified processes. Each pump undergoes 100% testing: hydrostatic pressure test (2.0 bar for 30 seconds), bearing run-out check, and flow bench validation. XCMG provides a 24-month warranty against casting defects, seal leakage, or bearing failure.
Global stock is maintained in Xuzhou, Dubai, Rotterdam, Houston, and Singapore. Emergency orders ship within 24 hours. Bulk packs of 5 pumps (part number 800172835-B5) are available for fleet customers at a 12% discount. Each pump includes a new mounting gasket, O-rings, and installation guide.
To verify authenticity, scan the QR code on the box – it links to the test certificate showing flow rate, bearing vibration data, and date of manufacture. Always insist on genuine XCMG 800172835; counterfeit pumps have been known to seize, snapping the drive belt and causing engine overheating in remote locations.
XCMG engineers tested the 800172835 coolant pump under extreme conditions: -45°C cold soak (Heihe, China), +55°C ambient with high dust (Australian mines), and continuous thermal cycling from -40°C to +115°C (5,000 cycles). The pump maintained leak-free operation and flow performance within 5% of new.
For applications with extended-life coolants (OAT, HOAT), the standard EPDM mechanical seal is fully compatible. For engines using supplemental coolant additives (SCA), the cast iron housing resists pitting. The bearing grease remains effective up to 150°C, preventing early failure during high-load operation.
Vibration and shock: The pump passed 200 hours of random vibration at 20g RMS (simulating severe haul roads). No bearing damage or seal leakage occurred. The E-coat housing resists corrosion even after 1,000 hours of salt spray testing.
