The 800752690 Drain Valve is a genuine XCMG component designed for motor grader fuel tanks, coolant systems, and hydraulic reservoirs. This high-quality drain valve allows safe, controlled draining of fluids during maintenance. The 800752690 drain valve features a brass body with a corrosion-resistant zinc plating and a positive shut-off mechanism. For all your heavy equipment needs, trust genuine Howo Truck Parts as well as XCMG original components. It is a critical component for preventing fluid contamination and ensuring safe service procedures on GR series graders.
The 800752690 Drain Valve is manufactured to ISO 7713 standards, with a 3/8″ NPT thread and a maximum operating pressure of 10 bar (145 PSI). The valve uses a spring-loaded ball and seat design that provides a drip-tight seal even after thousands of cycles. The outlet features a standard 12mm barb for attaching a drain hose, preventing splashing. As a genuine XCMG part, it matches the original thread, flow rate, and mounting orientation exactly.
Engineered for extreme durability, the 800752690 Drain Valve has a temperature range of -40°C to +120°C, suitable for all climates. The brass body resists corrosion from diesel, oil, coolant, and water. The valve is 100% leak-tested at 1.5x working pressure. Using genuine XCMG drain valves eliminates the risk of cross-threading, seeping, or handle breakage, which can cause fluid loss and environmental contamination.
| Parameter | Specification |
|---|---|
| OEM Number | 800752690 |
| Product Name | Drain Valve (Fluid Drain Cock) |
| Brand | XCMG (Genuine OEM) |
| Material | Brass body, stainless steel ball and spring |
| Thread Size | 3/8″ NPT (National Pipe Taper) |
| Outlet Barb OD | 12 mm (0.47 inch) |
| Max Working Pressure | 10 bar (145 PSI) |
| Leakage Rate | Zero (bubble-tight) |
| Temperature Range | -40°C to +120°C |
| Flow Coefficient (Cv) | 1.2 |
| Handle Type | Lever-operated with lock-out feature |
| Compatible Fluids | Diesel, engine oil, coolant, hydraulic oil, water |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited cycles |
Aftermarket drain valves often use low-grade brass or plastic that cracks, leaks, or seizes. The genuine 800752690 Drain Valve from XCMG is machined from high-quality brass bar stock, not cast, ensuring no porosity. Independent tests show that OEM valves withstand 10,000 open-close cycles without leakage, while generic valves often fail after 1,000 cycles. This reliability prevents costly fluid loss and environmental fines.
Each 800752690 Drain Valve is traceable to its production batch, with records of thread gauging and pressure testing. The valve body is laser-etched with the XCMG part number for easy identification. XCMG’s quality control includes 100% leak testing under water at 15 bar and random sampling for salt spray resistance. Only valves that meet all specifications are shipped, ensuring a perfect seal for years.
Installing the 800752690 Drain Valve requires draining the tank or reservoir first. Clean the female threads in the tank bung. Apply a small amount of thread sealant (Loctite 567 or PTFE paste) to the male threads, but do not use Teflon tape. Screw the valve in by hand, then tighten an additional 1/4 turn with a wrench (torque 15 Nm). Do not overtighten, as brass can gall. Attach a drain hose if desired.
Inspect the 800752690 Drain Valve every 500 hours for signs of weeping or handle stiffness. If any fluid is observed on the outside, replace the valve immediately. Operate the valve at least once per year to keep the ball seal free from deposits. Store spare valves in a clean, dry place. Keep a drain valve in your parts cabinet, as a leaking valve can empty a fuel tank overnight.
A leaking drain valve allows fluid to drip onto the ground, wasting money and harming the environment. The genuine 800752690 Drain Valve provides a reliable seal that prevents drips even after years of service. Operators report zero fuel loss and clean engine bays after switching to OEM valves. The smooth lever action also makes draining quick and easy, encouraging regular water and sediment removal from fuel tanks.
In a fleet study of 20 XCMG GR215 graders, those equipped with genuine 800752690 Drain Valves experienced 95% fewer drain-related leaks over 3,000 hours compared to machines using aftermarket valves. The improved sealing also prevented water ingress through the valve body. For contractors who operate in environmentally sensitive areas, an OEM drain valve is essential for compliance and peace of mind.
XCMG’s valve production facility uses Swiss-type CNC lathes to machine the 800752690 Drain Valve to tolerances of ±0.02mm. The ball is ground to a mirror finish and matched to a PTFE seat for zero leakage. The brass body is then passivated to prevent dezincification. Each valve is assembled in a clean room and tested for bubble-tight sealing at 15 bar. The handle is designed for gloved operation and includes a lock-out pin for safety during maintenance.
All 800752690 Drain Valves are individually packaged in foam-lined boxes with protective caps on the threads. Bulk orders of 10 or more valves are shipped in sturdy cartons. XCMG’s global distribution centers maintain stock of this high-demand item, with same-day shipping available for urgent orders. For large fleet customers, custom kits with multiple valves and drain hoses are available via the contact buttons above.
The 800752690 Drain Valve directly replaces original part numbers 800752689 and 800752691. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders. This valve is used on fuel tank drains, coolant system drains, and hydraulic reservoir drains. For metric thread applications (M14x1.5), use part 800752692. Always verify the thread type by checking your tank bung before ordering.
When replacing a drain valve, also order a new tank bung gasket (part 800752693) if applicable. XCMG recommends changing the valve every 5,000 hours or at the first sign of leakage. Keep one spare 800752690 Drain Valve in your service truck for emergency repairs. For fleet operators, bulk orders of 25 or more valves include a 15% discount and free shipping.
For custom outlet configurations (e.g., quick-connect or hose barb sizes), use the buttons above to contact our technical sales team. We can also supply valves with Viton seals for aggressive chemicals. Always provide your grader’s serial number and a photo of the original valve when ordering the 800752690 Drain Valve to ensure perfect fitment.
