The 800159728 Screw Clamp is a genuine XCMG heavy-duty hose clamp designed for motor grader hydraulic, coolant, and fuel systems. This precision screw clamp ensures leak-free connections on hoses with a nominal diameter of 32-38 mm. The 800159728 screw clamp features a galvanized steel band and housing with a stainless steel screw, providing excellent corrosion resistance and consistent clamping force. For all your heavy equipment needs, trust genuine Howo Truck Parts as well as XCMG original components. It is a critical component for maintaining secure fluid lines on GR series graders.
The 800159728 Screw Clamp is manufactured to DIN 3017 standards, with a clamping range of 32-38 mm and a band width of 12 mm. The housing is made from stamped carbon steel with a zinc-plated finish, while the screw is AISI 410 stainless steel. The clamp delivers a tightening torque of 6.0 Nm and a clamping force of 1500 N. As a genuine XCMG part, it matches the original spring rate and band geometry exactly, ensuring proper sealing without damaging hoses.
Engineered for extreme durability, the 800159728 Screw Clamp has a temperature range of -40°C to +120°C, suitable for all climates. The smooth inner band prevents cutting into rubber hoses, while the rolled edges protect the operator’s hands during installation. Each clamp is 100% inspected for thread quality and band roundness. Using genuine XCMG clamps prevents loose connections that can cause fluid leaks, system contamination, and costly downtime.
| Parameter | Specification |
|---|---|
| OEM Number | 800159728 |
| Product Name | Screw Clamp (Worm-Drive Type) |
| Brand | XCMG (Genuine OEM) |
| Clamp Type | Worm-drive, slotted band |
| Material (Band & Housing) | Carbon steel, zinc-plated (Cr+3) |
| Screw Material | AISI 410 Stainless Steel |
| Clamping Diameter Range | 32 – 38 mm (1.25″ – 1.5″) |
| Band Width | 12 mm |
| Hex Size (Screw) | 8 mm (5/16″) |
| Recommended Torque | 6.0 Nm (53 in-lbs) |
| Clamping Force | 1500 N |
| Temperature Range | -40°C to +120°C |
| Corrosion Protection | Zinc plating (96h salt spray) |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR300, GR350 |
| Warranty | 12 months / unlimited cycles |
Aftermarket worm-drive clamps often use low-grade steel that rusts quickly or have sharp edges that cut hoses. The genuine 800159728 Screw Clamp from XCMG features a fully rolled band and a corrosion-resistant zinc plating that exceeds 96 hours of salt spray testing. Independent tests show that OEM clamps maintain 95% of their initial clamping force after 10,000 vibration cycles, while generic clamps lose up to 50% of their tension. This reliability prevents fluid leaks and system contamination.
Each 800159728 Screw Clamp is traceable to its production batch, with records of screw torque and band roundness. The clamp is stamped with the XCMG part number for easy identification. XCMG’s quality control includes random sampling for salt spray testing and dimensional verification. Only clamps that meet all specifications are shipped, ensuring consistent performance for every customer.
Installing the 800159728 Screw Clamp is straightforward. Slide the clamp over the hose and position it 5-10mm from the end of the fitting. Tighten the screw using a 8mm socket or flathead screwdriver until the hose is snug. Do not overtighten, as this can extrude the rubber into the fitting bore. For silicone hoses, reduce torque by 30%. After the first heat cycle, re-check the clamp and tighten if necessary.
Inspect the 800159728 Screw Clamp every 500 hours for signs of rust, thread damage, or loose fit. If any corrosion is visible, replace the clamp immediately. When replacing a hose, always use a new clamp to ensure proper tension. Store spare clamps in a dry area away from chemicals. Keep a supply of this common size in your parts inventory, as it is used on fuel lines, coolant hoses, and hydraulic returns.
A loose or corroded hose clamp allows fluid to seep past the fitting, creating slippery surfaces and attracting dirt. The genuine 800159728 Screw Clamp maintains constant tension, eliminating the need for frequent re-tightening. Operators report that using OEM clamps reduces fluid top-ups by 50% and prevents nuisance leaks that can lead to component failure. The smooth inner band also protects hoses from abrasion, extending their service life.
In a fleet study of 25 XCMG GR215 graders, those equipped with genuine 800159728 Screw Clamps on all fuel and coolant lines experienced 85% fewer clamp-related failures over 4,000 hours compared to machines using generic clamps. The improved sealing also prevented coolant loss that could lead to engine overheating. For contractors who value reliability, OEM hose clamps are a simple but critical upgrade.
XCMG’s clamp production line uses progressive stamping dies to form the band and housing from 1.2mm thick steel coil. The 800159728 Screw Clamp band is rolled with a smooth inner edge to prevent hose damage. The screw is cold-headed from stainless steel wire and thread-rolled for consistent engagement. After assembly, each clamp is tested for free rotation and band roundness on a laser gauge.
All 800159728 Screw Clamps are packaged in anti-static plastic bags in quantities of 10 or 50 per box. Bulk orders of 100 or more clamps are shipped in cardboard cartons with dividers. XCMG’s global distribution centers maintain stock of this fast-moving item, with same-day shipping available for urgent orders. For large fleet customers, blanket orders with scheduled releases can be arranged via the contact buttons above.
The 800159728 Screw Clamp directly replaces original part numbers 800159727 and 800159729. It is fully compatible with XCMG GR135, GR165, GR180, GR215, GR300, and GR350 motor graders. This clamp is used on fuel return lines, coolant overflow hoses, and air compressor lines. For smaller hoses (25-32mm), use part 800159726; for larger hoses (38-45mm), use part 800159730. Always verify the hose outer diameter before ordering.
When replacing a clamp, also inspect the hose for signs of swelling or cracking. XCMG recommends replacing all clamps whenever hoses are replaced. Keep a selection of 800159728 Screw Clamps in your service truck for emergency repairs. For fleet operators, bulk orders of 50 or more clamps include a 15% discount and free shipping. For stainless steel clamps for marine environments, use part 800159731.
For custom band widths or special materials (e.g., all-stainless for food-grade applications), use the buttons above to contact our technical sales team. Always provide your grader’s serial number and a photo of the original clamp when ordering the 800159728 Screw Clamp to ensure perfect fitment.
