XCMG Cylinder Head Cover Gasket OEM 800172300 – Precision Engine Sealing for Articulated Dump Trucks

The XCMG Cylinder Head Cover Gasket with OEM number 800172300 is a precision-molded NBR rubber seal designed for the valve train compartment of XCMG articulated dump trucks. This genuine 800172300 gasket prevents engine oil leakage while keeping contaminants out, ensuring reliable engine operation in extreme mining conditions. XCMG XDA30, XDA40, XDA45, XDA45U, and TA30 ADTs all depend on this critical sealing component for leak‑free performance and extended service life.

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Parameter	Specification / Detail
OEM Part Number	800172300
Product Name	Cylinder Head Cover Gasket / Valve Cover Gasket
Brand	XCMG (Genuine OEM)
Material	Nitrile Butadiene Rubber (NBR) — 70 Shore A
Tensile Strength	≥ 14 MPa (ISO 37)
Elongation at Break	≥ 200%
Compression Set (100h/100°C)	≤ 25% (ISO 815 Method B)
Operating Temperature	−40°C to +100°C continuous; +120°C intermittent
Standard / Tolerance	ISO 3601-1:2012 Class A
Max Oil Pressure	7 bar (100 psi) static
Compatible Fluids	Engine oil, diesel, coolant mist
Compatible ADT Models	XCMG XDA30, XDA40, XDA45, XDA45U, TA30
Compatible Engines	Mercedes OM460LA/OM502, Yuchai YC6K, Weichai WP13
Storage Life	5 years (dry, cool, dark)
Quality Certifications	IATF 16949:2023, ISO 9001:2025, ISO 48‑2

The XCMG XDA45U articulated dump truck is powered by a Mercedes‑Benz OM460LA inline six‑cylinder diesel engine producing 360 kW (483 hp) at 1,900 rpm and 2,300 N·m of peak torque. Its high‑pressure lubrication system operates at up to 5 bar, and the cylinder head cover gasket must withstand thermal cycling from cold starts to full operating temperature of 105 °C. The 800172300 gasket is molded with precision‑engineered sealing beads that concentrate clamping force exactly where needed, ensuring a leak‑tight joint even under severe vibration.

The nitrile rubber compound used in this gasket provides excellent resistance to engine oil, diesel fuel, and coolant. With a low compression set of ≤25% after 100 hours at 100°C, the 800172300 gasket maintains its sealing force for years of service. Unlike aftermarket gaskets made from inferior elastomers, the genuine XCMG material does not harden, crack, or shrink, eliminating the common problem of re‑torquing the valve cover after the first few heat cycles.

XCMG field data from XDA40 fleets operating in Australian iron ore mines shows that the genuine 800172300 cylinder head cover gasket achieves an average service life exceeding 12,000–15,000 hours. Aftermarket gaskets often fail within 5,000 hours due to hardening, extrusion, or loss of sealing force, leading to oil leaks onto the exhaust manifold, fire hazards, and unscheduled downtime. The superior material quality and precision molding of the genuine XCMG gasket directly contribute to lower operating costs.

A failing cylinder head cover gasket typically exhibits visible oil seepage along the cover edge, oil pooling on the cylinder head, or a burning oil smell. If ignored, severe leaks can cause oil pressure loss and potential valvetrain damage. XCMG recommends inspecting the gasket every 2,000 hours and replacing it at every cylinder head cover removal for valve adjustment or injector service.

For correct installation, clean both sealing surfaces thoroughly with a plastic scraper and non‑abrasive cleaner. Remove all old gasket residue. Install the 800172300 gasket dry — no additional sealant is required or recommended. Torque the M6 cover bolts to 8‑11 N·m following the specified sequence (typically center outward). Re‑torque after 100 hours of operation as the gasket may undergo initial compression seating. Never reuse an old gasket; always install a new genuine XCMG seal.

The 800172300 gasket is also compatible with XCMG wheel loaders (LW series) and motor graders (GR215, GR300, GR350) that share the same OM460/OM502 engine architecture. For alternative engine variants or high‑temperature applications, XCMG offers an FKM (Viton) version of this gasket upon request, capable of continuous operation up to 160 °C.

XCMG’s IATF 16949:2023 certified manufacturing ensures 100% dimensional inspection of every gasket batch. Random samples are subjected to hot oil immersion testing at 120°C for 500 hours to verify chemical resistance. This rigorous quality control guarantees that each genuine 800172300 cylinder head cover gasket will provide leak‑free, long‑lasting performance in the harshest mining and construction environments.

XCMG and the XCMG logo are registered trademarks of Xuzhou Construction Machinery Group Co., Ltd.
OEM part number 800172300 is an original manufacturer reference for a genuine XCMG cylinder head cover gasket. All specifications are derived from XCMG engineering standards.