The genuine XCMG Plug with OEM number 800172755 is a precision-machined steel sealing component designed for XCMG articulated dump trucks and heavy off-highway equipment. This threaded plug seals oil drain ports, inspection holes, and unused hydraulic passages, preventing leaks and contamination ingress under extreme pressure and vibration.
The XCMG Plug 800172755 is manufactured from high-strength carbon steel and precision-ground threads to meet ISO metric fine standards. When torqued correctly with the included copper crush washer, it forms a metal-to-metal seal that withstands the highest system pressures found in dump truck hydraulics and final drives.
Unlike pipe plugs that rely on tapered threads, this parallel-thread plug with a captive washer provides consistent sealing force even after multiple removals. The hex head is designed for a 27 mm socket, allowing easy access in tight areas such as axle housings and transmission pans.
For critical applications like differentials and hydraulic tanks, XCMG offers a magnetic version of the 800172755 plug. A high-flux rare-earth magnet is embedded in the tip, capturing ferrous wear particles before they circulate through the system. During oil changes, inspecting the magnet for debris provides early warning of gear or bearing failure.
The magnetic plug retains particles as fine as 50 microns, reducing filter loading and extending component life. Fleet data shows that using magnetic drain plugs in final drives reduces gear wear rates by up to 30% over 5,000 operating hours.
The M22×1.5 thread size of the 800172755 plug is used across dozens of XCMG components: axle drain plugs, hydraulic reservoir bottom ports, planetary hub fillers, and transmission filter housings. Maintaining a single part number simplifies inventory and eliminates the risk of using incorrect plugs that might leak or strip threads.
Always verify the thread pitch before installation – M22×1.5 is a fine thread and will not interchange with M22×2.5 (coarse). The genuine XCMG plug is clearly marked with the part number and thread size on the hex face.
To install the Plug 800172755, clean the mating threads and the sealing surface thoroughly. Always use a new copper crush washer each time the plug is removed; reusing a flattened washer compromises the seal. Hand-tighten until the washer contacts the housing, then torque to 50 Nm using a calibrated torque wrench.
Do not apply thread sealant tape or liquid sealant unless specified – the copper washer alone provides the seal. Over-torquing can strip the housing threads or split the washer, causing leaks. If a magnetic plug is used, inspect the magnet for metal particles at each oil change. Clean the magnet with a lint-free cloth before reinstallation.
When removing a stubborn plug that has been in service for years, use a six-point socket to avoid rounding the hex corners. If the plug is seized, apply penetrating oil and allow it to soak. Never use an impact wrench – the sudden torque can crack the housing.
The most frequent failure of non-genuine plugs is thread galling (seizing) due to poor surface finish or incorrect thread profile. Genuine XCMG 800172755 plugs are CNC-turned and thread-rolled for a smooth, consistent fit. Counterfeit plugs often use zinc-plated mild steel that corrodes rapidly, leading to rust locking and stripped threads during removal.
Another issue is washer leakage – aftermarket plugs frequently include inferior fiber or rubber washers that extrude under pressure. XCMG supplies a high-purity copper washer that work-hardens to a perfect seal. Always insist on genuine parts to avoid these problems.
A leaking drain plug can drip several liters of oil per shift, resulting in product loss, environmental fines, and safety hazards (slippery floors). Replacing a worn or incorrect plug with the genuine XCMG 800172755 eliminates these leaks permanently. Over a year, this can save over 500 liters of oil per machine.
The magnetic version also reduces abrasive wear particles circulating in the system, extending oil change intervals by up to 20% in some applications. This reduction in fluid consumption and filter changes delivers significant operational savings.
All XCMG Plug 800172755 units are produced under ISO 9001:2015 and IATF 16949 quality systems. Each batch is inspected for thread gauge conformity, hardness (HRB 70-85), and salt spray resistance. The magnetic version is tested for magnetic flux density (minimum 2,500 Gauss). XCMG provides a 12-month warranty against manufacturing defects.
Counterfeit plugs often lack the XCMG part number stamp and have inconsistent hex sizes. Protect your equipment and your reputation – always purchase from authorized distributors and verify the packaging. Using genuine plugs ensures safe, leak-free operation and preserves equipment value.
