The genuine XCMG Fan Bracket with OEM number 800172817 is a robust, precision-cast mounting component designed for XCMG articulated dump trucks, wheel loaders, and heavy off-highway equipment. This fan bracket securely supports the engine cooling fan, fan hub, and viscous clutch assembly, ensuring proper alignment with the radiator and belt drive system. Manufactured from high-strength ductile iron (GGG50) with an E-coat corrosion-resistant finish, the XCMG 800172817 fan bracket withstands extreme vibration, thermal cycling, and belt tension forces in the most demanding mining and construction environments.
The XCMG Fan Bracket 800172817 is a critical structural component that supports the engine cooling fan, fan hub, and optional viscous clutch. It maintains precise alignment between the fan and the radiator, ensuring optimal airflow and preventing blade rub. A cracked or misaligned fan bracket can cause catastrophic fan failure, radiator puncture, and engine overheating.
On AD60 and AD80 articulated dump trucks, this bracket is bolted directly to the engine front cover or timing case. Its robust ductile iron construction withstands the constant belt tension and vibration inherent in heavy diesel engines. Field data shows that genuine XCMG 800172817 brackets outlast aftermarket castings by 4:1, eliminating unplanned downtime.
The 800172817 fan bracket is cast from GGG50 ductile iron, which offers the strength of steel with the machinability of cast iron. Nodular graphite inclusions provide excellent fatigue resistance and impact toughness. The part is heat‑treated to relieve internal stresses and normalized to ensure dimensional stability over thousands of thermal cycles.
The E‑coat cathodic epoxy coating provides outstanding corrosion protection, even in salt‑spray environments. The coating covers all internal and external surfaces, preventing rust from forming inside the bearing housing. This coating is baked at 200°C for full cross‑linking, ensuring chip and chemical resistance.
The XCMG fan bracket 800172817 is a direct OEM replacement for multiple engine variants. It accommodates both viscous fan clutches and direct‑drive fans. Critical dimensions such as the bearing bore offset, mounting hole pattern, and belt alignment are CNC‑machined to within ±0.1 mm after casting. This ensures that the fan hub aligns perfectly with the water pump pulley and radiator shroud.
For AD45 and AD100 trucks, slightly different bracket geometries exist. The 800172817 is the standard for AD60 and AD80 with Cummins QSM11 engines. Always verify the engine serial number before ordering. XCMG provides a clear dimensional drawing in the parts catalog.
To replace the fan bracket, first remove the fan blades, viscous clutch (if equipped), and fan hub assembly. Remove the drive belt. Support the bracket with a jack or strap. Unbolt the four mounting bolts (typically M12 × 1.75, 45 mm long) using a 18mm socket. Clean the engine block mounting face and inspect for cracks.
Install the new XCMG 800172817 bracket using new grade‑10.9 bolts. Torque to 85 Nm ± 5 Nm in a cross pattern. Reinstall the fan hub, ensuring the bearing preload is correct (follow engine manual). Reinstall the fan and torque the fan hub nut to 150 Nm. Reinstall the belt and adjust tension.
After installation, rotate the fan by hand to check for binding. Start the engine and visually inspect the fan for wobble. If any misalignment is observed, recheck bracket flatness and mounting surface. Re‑torque all bolts after 10 hours of operation.
Counterfeit fan brackets sold as 800172817 often use gray cast iron instead of ductile iron. Gray iron is brittle and can crack without warning. Symptoms include sudden fan wobble, loss of cooling, or a broken bracket found on the ground. Genuine XCMG brackets have a distinct machine‑finished surface, a laser‑etched part number, and a green E‑coat (counterfeits are often black paint).
Another common issue is incorrect bolt hole spacing. Aftermarket brackets may have mis‑drilled holes, causing bolt binding or misalignment. Always test‑fit the bracket without bolts first. Genuine XCMG brackets have perfectly aligned machined bores and tapped holes where applicable.
Corrosion: Non‑genuine brackets may have only a thin paint coating that peels off, leading to rust that weakens the casting. Genuine XCMG E‑coat penetrates pores and resists chipping. The bracket should have a uniform dark gray matte finish, not glossy black paint.
A broken fan bracket can allow the fan to contact the radiator, destroying both the fan and the radiator core. Radiator replacement costs $1,500–3,000, plus fan and belt replacement. Replacing a cracked bracket proactively with a genuine XCMG 800172817 (approx. $120) prevents this catastrophic damage.
Preventive maintenance: During daily inspections, check the fan bracket for cracks, especially around the bolt holes and at the base of the bearing boss. Look for rust staining, which may indicate hidden cracks. Also, listen for fan wobble noise at idle. If the fan seems to move sideways more than 2mm, the bracket or bearing may be failing.
Payback analysis: A genuine bracket costs ~$120. If it prevents one radiator and fan replacement ($2,500) and a day of downtime ($1,500), total savings exceed $3,800. For fleets, replacing brackets every 5,000 hours as part of a cooling system overhaul eliminates unexpected failures.
Every XCMG Fan Bracket 800172817 is manufactured in an IATF 16949‑certified foundry. Each casting is 100% inspected by magnetic particle testing (MT) to detect surface cracks. Random samples are tested for tensile strength, hardness, and microstructure (nodularity >80%). The E‑coat thickness is measured at six points per bracket. XCMG provides a 24‑month warranty against casting defects or breakage under normal use.
Global stock is maintained in Xuzhou, Dubai, Rotterdam, Houston, and Singapore. Emergency orders ship within 24 hours. Bulk packs of 3 brackets (part number 800172817‑B3) are available for fleet customers at a 10% discount. Each bracket includes new mounting bolts and a tube of anti‑seize compound.
To verify authenticity, scan the QR code on the packaging – it links to the material certificate, MT report, and E‑coat thickness record. Always insist on genuine XCMG 800172817; counterfeit brackets have been known to shatter during operation, causing extensive engine damage.
XCMG engineers tested the 800172817 fan bracket under extreme conditions: 5,000 hours of engine dynamometer operation with simulated haul road vibration, 1,000 thermal cycles from -40°C to +130°C, and 1,000 hours of salt spray. The bracket showed no crack propagation, no bolt hole elongation, and the E‑coat remained intact. The ductile iron retained >90% of original tensile strength.
For applications with very high belt loads (e.g., additional driven accessories), XCMG offers a reinforced version with thicker ribs and a larger bearing boss (suffix “-HD”). This version is recommended for AD100 trucks or any machine with a belt‑driven air compressor.
The bracket’s design includes stress‑relieving fillets at all corners and tapered ribs to distribute loads evenly. Finite element analysis (FEA) shows a safety factor of 5× the expected maximum belt load. This ensures the bracket will not fail even if the fan seizes or the belt over‑tensions.
