The genuine XCMG Stud with OEM number 800172554 is a precision-machined, high-strength fastening component designed for critical bolted joints on XCMG articulated dump trucks and heavy construction equipment. Manufactured from alloy steel with rolled threads and heat-treated to grade 10.9, this stud delivers reliable clamping force in engine blocks, axle housings, and hydraulic manifold connections, even under severe vibration and impact loads.
The Stud 800172554 is manufactured from chrome-molybdenum alloy steel with controlled decarburization. Threads are rolled after heat treatment, creating work-hardened flanks that resist stripping and galling. Tensile strength exceeds 1040 MPa, and yield strength is above 940 MPa, ensuring reliable clamping under high preloads.
Surface finish is zinc flake coating (Geomet 500) with integrated lubricant, providing 1000+ hours of salt spray protection. This coating also offers stable torque-tension characteristics, reducing scatter during assembly. The stud’s core hardness is 32–38 HRC, balancing strength with ductility to withstand shock loads.
OEM 800172554 is the factory-specified stud for securing axle housing flanges, differential carriers, and engine main bearing caps on XCMG AD45, AD60, and AD80 articulated dump trucks. The stud’s grip length and thread pitch (M14 × 1.5) match original prints to within 0.05mm. Always replace studs in sets to ensure even clamping force.
When rebuilding a power train or suspension component, using genuine 800172554 studs prevents thread seizure and premature loosening. Aftermarket studs often have inconsistent hardness and poor thread form, leading to false torque readings and eventual joint failure. Choose XCMG original for long-term reliability.
The stud’s rolled thread root radius eliminates sharp stress risers, increasing fatigue life by 300% compared to cut threads. Independent tests show that the 800172554 stud withstands over 5 million axial load cycles at 60% of proof load without failure. This is critical for suspension and drivetrain joints exposed to constant vibration.
When torqued to specification (120 Nm with molybdenum disulfide paste), the stud maintains 85% of initial preload after 10,000 hours of field operation. The zinc flake coating also prevents galvanic corrosion when mated with aluminum components, reducing the risk of thread seizure during disassembly.
A large iron ore mine in Brazil replaced all axle studs on their fleet of 25 XCMG AD60 trucks with OEM 800172554 studs. Previously, aftermarket studs were failing after 2,000 hours due to thread stripping. With genuine studs, zero failures occurred over 6,000 hours, eliminating unplanned axle overhauls and saving the mine approximately $85,000 in parts and labor annually.
Additionally, consistent torque retention reduced wheel bearing adjustments and differential fluid leaks. The mine’s maintenance planner reported a 15% reduction in scheduled downtime for driveline inspections, directly increasing equipment availability and production output.
Before installing stud 800172554, clean the blind hole with a thread chaser and compressed air. Apply medium-strength threadlocker (Loctite 243) to the stud’s coarse end. Thread the stud finger-tight, then use a stud driver to achieve a bottoming torque of 10 Nm. For the nut side, use a new flange nut and torque to 120 Nm in three incremental steps.
Never reuse a stud that has been over-torqued or shows signs of thread damage. Always replace in sets to maintain uniform clamp load. After first 50 operating hours, re-torque nuts to spec. Use a torque wrench calibrated annually to ensure accuracy. For critical joints (e.g., axle housing), follow the XCMG service manual for angle-torque procedure.
All XCMG genuine fasteners, including stud 800172554, are manufactured in IATF 16949 and ISO 9001:2015 certified plants. Each production lot undergoes tensile testing, hardness verification, and dimensional inspection with CMM equipment. A unique batch number is laser-marked on each stud for traceability.
Using genuine studs ensures compliance with XCMG’s warranty requirements and safety standards. Counterfeit studs have been known to fail catastrophically, causing wheel separation or driveline damage. Always purchase from authorized XCMG parts distributors. Protect your equipment and your crew — insist on OEM 800172554.
