The genuine XCMG double-ended stud 800172467 is a precision-engineered high-strength fastener. This heavy-duty stud provides secure, vibration-resistant clamping for critical connections in XCMG articulated dump trucks. It is used in engine cylinder head assemblies, exhaust manifold flanges, turbocharger brackets, and transmission housings. Manufactured from premium alloy steel with rolled threads, the 800172467 double-ended stud delivers consistent clamp load and exceptional fatigue resistance under extreme mining conditions.
A double-ended stud (double-end stud bolt or tap end stud) has threads on both ends and an unthreaded central shank. This design protects the parent material, enables repeatable torque‑to‑preload behavior, and simplifies field replacement. The 800172467 stud is available in metric sizes (M8 to M16) to suit the Mercedes‑Benz OM460LA engine. The reduced central shank creates a controlled stress-relief zone, preventing crack initiation and providing precise alignment of mating components. This XCMG genuine part is a property class 10.9 fastener with rolled threads.
The 800172467 double-ended stud is fully compatible with XCMG articulated dump trucks including XDA30, XDA40, XDA45U, XDA60E, and XDA70. The XDA45U is powered by an OM460LA engine producing 360 kW (483 hp) at 1900 rpm and 2,300 N·m of torque at 1300 rpm. The stud is used in cylinder head (220 bar combustion pressure), exhaust manifold flanges (thermal cycling from -40°C to +650°C), and turbocharger brackets. Its robust construction prevents loosening and thread galling, ensuring engine reliability and operator safety.
The following table provides complete technical specifications for the XCMG 800172467 double-ended stud, meeting all OEM standards for high‑load fastening in articulated dump trucks.
The 800172467 double-ended stud is forged from 40Cr alloy steel (AISI 4140). This material provides exceptional hardenability and fatigue resistance. The steel is vacuum‑degassed to remove inclusions, ensuring a clean microstructure. The blank is austenitized at 850°C, oil quenched, and tempered to achieve a tempered martensitic structure.
Threads are formed via precision rolling rather than cutting. Rolling work‑hardens the flanks to ≥45 HRC and increases fatigue strength by up to 40% compared to cut threads. The central shank is undersized to create a controlled stress‑relief zone, preventing crack initiation under cyclic loads. This high-strength fastener design ensures reliable preload retention.
Zinc‑nickel plating with trivalent passivation provides ≥500 h salt spray resistance (ASTM B117). A post‑plate bake eliminates hydrogen embrittlement. Each stud is 100% magnetic particle inspected and thread‑gauged. Laser‑etched part numbers and batch codes ensure full traceability. This XCMG genuine part meets PPAP requirements for heavy‑duty equipment.
The OEM stud 800172467 is a direct replacement for the OM460LA engine in XDA30, XDA40, XDA45U, XDA60E, and XDA70. The XDA45U produces 360 kW and 2,300 N·m torque. The stud is used in cylinder head fastening, where it seals the head gasket against 220 bar combustion pressure. The double‑ended design protects the engine block threads.
In exhaust manifold applications, the stud withstands thermal cycling from -40°C to over 650°C. Prevailing‑torque lock nuts maintain joint integrity. The turbocharger mounting bracket uses these studs to resist intense vibration from the 6×6 all‑wheel‑drive system. Field data from Australian mines shows genuine studs last 12,000‑15,000 hours.
Aftermarket studs often lose preload after 4,000–6,000 hours. The XCMG 800172467 double-ended stud retains clamp load through hundreds of thermal cycles. Its rolled threads and corrosion‑resistant coating prevent galling and seizure, ensuring reliable disassembly during maintenance.
Clean the threaded bore and apply Loctite 243 to the tap end. Thread the stud by hand until it bottoms, then use a double‑nut jamming method to torque to 10–15 Nm. Do not over‑tighten. Install the mating component and torque the nut to the value specified in the XCMG workshop manual (e.g., M14: 200 Nm). Use prevailing‑torque nuts for high‑temperature applications.
Tighten multi‑stud joints in a cross pattern for even preload distribution. Re‑torque after the first 250 operating hours. Never reuse studs that show signs of corrosion, thread damage, or over‑torquing. Always replace with new genuine XCMG 800172467 studs during engine overhauls.
For exhaust manifold and turbocharger applications, use all‑metal lock nuts (not nylon‑insert). Apply anti‑seize compound to threads only if specified by the service manual. Follow the torque‑angle method where required for cylinder head studs. A calibrated torque wrench is essential.
The 800172467 stud has been validated to ISO 898‑1 and ISO 16047. Proof load testing confirmed 830 MPa with zero permanent deformation. Fatigue testing (10⁷ cycles at 60% of proof load) showed no crack initiation. The fatigue endurance is ≥480 MPa at 10⁷ cycles (R = -1).
Field trials on 30 XCMG XDA45U trucks in Australian and Indonesian mines covered 8,000–10,000 hours. Genuine 800172467 studs showed no loosening, thread galling, or corrosion. Aftermarket studs failed by 4,000 hours due to hydrogen embrittlement and plating degradation.
Thermal cycling from -50°C to +300°C for 500 cycles produced no coating delamination. Vibration testing per ISO 14982 (1 million cycles) showed no loosening. Salt spray testing (500 hours) confirmed no red rust. The rolled threads retained torque retention characteristics throughout the test period.
Aftermarket studs pose serious risks: thread stripping, fatigue fracture, vibration loosening, and corrosion seizure. These failures can cause cylinder head leaks, exhaust manifold cracks, turbocharger bracket failure, and even valve‑to‑piston contact. Repair costs often exceed $20,000 per incident.
Genuine XCMG 800172467 double-ended studs offer full material traceability, documented heat treatment, 100% MPI and thread inspection, and a 12‑month warranty. Each stud is batch‑tested for tensile strength, hardness, and corrosion resistance. Using genuine fasteners preserves your engine warranty and reduces total ownership cost.
For urgent replacement or bulk fleet orders, use the “Send Email” or “Inquiry Now” buttons above. We offer OEM pricing, worldwide shipping, and technical support. Trust only genuine XCMG 800172467 double-ended studs for reliable performance in the toughest mining environments.
