The genuine XCMG flywheel housing 800172170 is a precision‑engineered structural component that mounts directly to the engine block of the Mercedes‑Benz OM460LA powerplant.
It encloses the flywheel and provides the mounting interface for the transmission bell housing. This heavy‑duty housing ensures perfect alignment between the engine crankshaft and transmission input shaft.
Such alignment is a critical requirement for reliable power transfer in articulated dump truck applications. Manufactured from high‑strength nodular cast iron (GGG‑40), the 800172170 flywheel housing combines exceptional rigidity with vibration damping properties.
It serves as the backbone connecting the 6‑cylinder OM460LA diesel engine to the ZF 8WG310 automatic transmission in XCMG articulated haulers. The housing incorporates precision‑machined locating dowel holes and threaded mounting bosses.
A fully enclosed flywheel chamber with integral sealing surfaces prevents lubricant leaks and keeps contaminants away from rotating components. The 800172170 flywheel housing is fully compatible with XCMG articulated dump trucks including XDA30, XDA40, XDA45U, XDA60E, and XDA70 series.
The XDA45U is powered by a Mercedes‑Benz OM460LA inline 6‑cylinder diesel engine producing 360 kW at 1900 rpm and 2,300 N·m of torque at 1300 rpm. The housing absorbs immense torsional vibrations and reactive forces from the drivetrain.
The following table provides complete technical specifications for the XCMG 800172170 flywheel housing, meeting all original equipment manufacturer standards.
The 800172170 flywheel housing is cast from high‑quality nodular cast iron (GGG‑40/EN‑GJS‑400‑15). This material provides the ideal combination of tensile strength (400 MPa), yield strength (250 MPa), and elongation (≥12%).
It withstands the dynamic forces between a 12.8‑liter diesel engine producing 2,300 N·m of torque and the 6×6 drivetrain. The nodular structure—graphite as spherical nodules—gives excellent impact resistance and vibration damping.
The casting process at XCMG’s ISO 9001:2015 certified foundry uses resin‑sand moulding with computer‑controlled pouring. After casting, the housing undergoes stress relief annealing at 560°C for 4 hours to eliminate residual stresses.
The housing is then shot‑blasted to Sa 2.5 surface cleanliness before all critical mating surfaces are precision‑machined on a 5‑axis CNC machining centre. Dimensional verification is performed using a coordinate measuring machine (CMM) with ±0.05 mm tolerance.
Critical features include engine bolt hole pattern, dowel pin center‑to‑center distance, flywheel bore concentricity, and transmission mating face flatness (≤0.10 mm). After machining, the housing receives zinc‑phosphate primer and high‑temperature XCMG grey paint.
The OEM flywheel housing 800172170 is a direct replacement for original equipment on the full range of XCMG articulated dump trucks. The XDA45U—a 41‑tonne payload articulated dump truck—is powered by a Mercedes‑Benz OM460LA engine with a ZF 8WG310 automatic transmission.
The OM460LA is a 6‑cylinder, 12.8‑litre diesel with high‑pressure common rail injection and variable‑geometry turbocharging. It produces 360 kW at 1900 rpm and peak torque 2,300 N·m at 1300 rpm.
The ZF 8WG310 features 8 forward gears, 1 reverse, an integrated torque converter lock‑up clutch, and a hydraulic retarder providing braking power exceeding 600 kW. The flywheel housing must maintain perfect alignment between the crankshaft and transmission input shaft.
Any misalignment leads to premature failure of the torque converter, input shaft bearings, and transmission seals. The housing also provides mounting points for the starter motor (left or right), a flywheel inspection port, and the rear engine mounts.
The XDA45U’s all‑wheel‑drive 6×6 system with 100% lockable differentials and hydraulic retarder creates intense torsional forces and vibration. The XDA40, XDA60E, XDA30, and XDA70 all use the same OM460LA and ZF architecture.
Thus the 800172170 flywheel housing is a standardized component across the entire XCMG articulated hauler range. Field data from Australian iron ore mines and Chilean copper operations shows genuine housings maintain integrity for 15,000–20,000 hours.
Proper installation of the 800172170 flywheel housing is critical for drivetrain longevity. Before installation, inspect the engine block mounting face and the transmission bell housing for damage, corrosion, or old gasket material.
Clean all mating surfaces using a solvent and a non‑abrasive scraper. Verify that the two locating dowels are present and undamaged—these ensure concentric alignment between the crankshaft axis and the transmission input shaft.
Apply a thin, continuous bead of Loctite 510 or XCMG‑approved anaerobic gasket maker to the engine block mating face of the housing. Do not use RTV silicone, as it can extrude into the flywheel chamber.
Position the housing over the dowels and gently tap into place using a soft‑faced hammer on the outer ribs—never hammer on machined surfaces. Install the eight M14 engine mounting bolts and torque in a cross pattern to 120 Nm in three stages.
Finally torque to 140 Nm (103 lb·ft) for final tightening. Install the flywheel and torque the crankshaft bolts according to the XCMG workshop manual. For the ZF 8WG310, install the torque converter and mount the transmission with SAE #1 bolts torqued to 180 Nm.
Install the starter motor with M10 bolts torqued to 45 Nm. After assembly, rotate the engine by hand two full revolutions to verify no binding. Re‑torque all fasteners after the first 250 operating hours. Never reuse engine mounting bolts.
Laboratory validation included static load testing that applied a bending moment of 25,000 N·m to the housing, simulating the torque reaction from the OM460LA engine at peak output. No permanent deformation or cracking was observed.
Fatigue testing at 80% of yield strength for 10 million cycles produced no detectable cracks or changes in bolt hole geometry, confirming excellent fatigue resistance. Field trials on XCMG XDA45U trucks in Australian iron ore mines and Indonesian coal mines were conducted.
Genuine 800172170 housings maintained full structural integrity and alignment accuracy for over 15,000 operating hours—matching the life of the engine and transmission. Aftermarket castings showed porosity, stress cracking, and dimensional distortion within 6,000–8,000 hours.
Thermal cycling tests between -40°C and +120°C over 1,000 cycles produced no coating delamination or cracking. The coating system withstood 500 hours of salt spray exposure per ASTM B117 with no red rust, confirming corrosion protection for coastal and high‑moisture mines.
Aftermarket flywheel housings pose significant risks to drivetrain integrity, safety, and operational cost. Non‑genuine castings are often made from inferior grey cast iron, lack stress relief, and have poor dimensional accuracy.
Consequences include misalignment between engine and transmission, leading to rapid wear of torque converter bushings and input shaft bearings; cracking under torsional vibration; oil leaks; starter misalignment; and catastrophic housing failure.
Genuine XCMG 800172170 flywheel housings offer full material traceability from certified foundries, documented casting records, 100% CMM dimensional verification, magnetic particle inspection, and a 12‑month warranty against manufacturing defects.
Each housing is batch‑tested for compliance with XCMG’s OEM specifications for tensile strength, hardness, elongation, and flatness. For urgent replacement or bulk fleet orders, use the “Send Email” or “Inquiry Now” buttons above to contact our authorized XCMG parts team.
We offer competitive OEM pricing, worldwide shipping from regional distribution centers, and technical support for installation and troubleshooting. Protect your XCMG articulated dump truck’s drivetrain investment—choose only genuine OEM 800172170 flywheel housings.
