The genuine XCMG Intercooler Pipe Clamp with OEM number 800166264 is a high-strength V-band clamp engineered for XCMG articulated dump trucks, wheel loaders, and heavy off-highway equipment. This clamp provides a leak-free, heat-resistant connection between intercooler inlet/outlet pipes and silicone hoses or turbocharger ducts. Manufactured from 304 stainless steel or zinc-flake coated carbon steel with a precision-formed band and a heavy-duty bolt, the XCMG 800166264 intercooler pipe clamp delivers consistent clamping force, excellent vibration resistance, and long service life in extreme mining, quarry, and construction environments.
The XCMG Intercooler Pipe Clamp 800166264 is specifically designed to secure silicone hoses and rigid pipes in the charge air cooling system. Operating at temperatures up to 300°C and boost pressures up to 2.5 MPa (25 bar), these connections are prone to leakage if clamps lack sufficient band width, tension, or heat resistance. This V‑band clamp applies uniform radial force, preventing air leaks that reduce engine power and increase fuel consumption.
On AD‑series articulated dump trucks, this clamp is used at the intercooler inlet and outlet pipes as well as the turbocharger-to-intercooler duct. Field data shows that using genuine XCMG clamps reduces charge air leak failures by 80% compared to generic worm‑drive clamps, which often loosen or cut into silicone hoses under high temperature and vibration.
The 800166264 clamp features a 304 stainless steel band and housing (standard), offering excellent resistance to oxidation and thermal fatigue. The V‑band geometry evenly distributes clamping force around the entire circumference, eliminating localized pinch points that could damage silicone hoses. A zinc‑flake coated carbon steel version is available for cost‑sensitive applications, with the same dimensional accuracy.
The clamp includes a stainless steel bolt with a 13 mm hex head, pre‑lubricated threads to prevent galling, and a Belleville washer that maintains tension despite thermal expansion cycles. The band edges are rolled to avoid cutting into hoses, and the hinge pin is pressed for smooth opening and closing.
The XCMG intercooler pipe clamp 800166264 is a direct replacement for original part numbers 800166264A, 800166264B, and all AD‑series variants. Its inner diameter range of 75–100 mm covers all common intercooler hose connections. The clamp is supplied fully assembled and ready to install.
Installation is straightforward: open the clamp, place it around the silicone hose and mating pipe, engage the V‑band into the groove, and tighten the bolt to 20–25 Nm using a 13 mm socket or wrench. No special tools are required. Re‑torque after the first heat cycle, as the hose may settle.
To install the clamp, first clean the silicone hose and metal pipe mating surfaces. Ensure the hose is fully seated over the pipe and that the V‑band groove is free of debris. Open the clamp fully and position it so the band sits squarely in the groove. Close the clamp and insert the bolt finger‑tight.
Using a torque wrench, tighten the bolt to 20–25 Nm. Do not exceed 28 Nm, as over‑tightening can deform the band or crack the housing. After the engine reaches operating temperature, allow it to cool and re‑torque the clamp to the same specification. This accounts for initial hose compression.
During routine inspections, check the clamp for rust, loose bolts, or cracked band. If the bolt turns without tightening, the threads may be stripped – replace the clamp immediately. Also inspect the silicone hose for signs of soot or oil stains near the clamp, which indicate a leak.
Counterfeit intercooler pipe clamps sold as 800166264 often use low‑grade 201 stainless steel or uncoated carbon steel, which rusts rapidly and loses clamping force. Symptoms include visible rust, the bolt seizing, or the band cracking under vibration. Genuine XCMG clamps have a bright, uniform finish (SS) or a smooth matte gray (zinc‑flake), a laser‑etched part number, and a rolled band edge.
Another issue is incorrect band thickness. Aftermarket clamps may use 0.6 mm band material instead of 0.8 mm, resulting in poor clamping force and easy deformation. Genuine XCMG clamps have a robust 0.8 mm band. Measure the band thickness – if it is less than 0.7 mm, it is likely counterfeit.
Bolt quality: Non‑genuine bolts may be made of low‑grade steel that stretches or shears at the recommended torque. Genuine XCMG bolts are grade 8.8 or higher and are marked with the grade. Always test the bolt movement before installation – it should turn smoothly without galling.
A leaking intercooler connection can reduce boost pressure by 0.2–0.5 bar, causing a 5–10% power loss and a corresponding increase in fuel consumption. Replacing a faulty clamp costs $10–20, but the fuel saved over a single year can exceed $500. Using a genuine XCMG 800166264 clamp ensures a leak‑free seal and restores engine performance.
Predictive maintenance: Monitor boost pressure via the ECU or a gauge. If boost drops below specification, inspect the intercooler clamps for tightness and signs of soot. Also listen for a hissing sound during acceleration. Re‑torque clamps annually or after any charge air system service. Replace clamps that show rust or if the bolt is difficult to turn.
Payback analysis: A stainless steel XCMG clamp costs approximately $12. If it prevents one turbocharger over‑speed condition ($2000) and reduces fuel consumption by 3% ($900/year), savings exceed $2,900 per incident. For a fleet of 10 trucks, annual savings on boost‑related issues can exceed $15,000.
Every XCMG Intercooler Pipe Clamp 800166264 is produced in an IATF 16949‑certified facility. Each batch undergoes 100% dimensional inspection, thread go/no‑go testing, and salt spray verification. Random samples are torque‑tested to 30 Nm and subjected to vibration cycling (200 hours at 20g). XCMG provides a 24‑month warranty against material defects or corrosion.
Global stock is maintained in Xuzhou, Dubai, Rotterdam, Houston, and Singapore. Standard sizes ship within 24 hours. XCMG also offers clamp kits (part 800166264‑KIT) containing 10 clamps in the two most common sizes for AD‑series trucks, stored in a compartmentalized box. Bulk packs of 50 are available for fleet customers at volume discounts.
To verify authenticity, scan the QR code on the packaging – it links to the material certificate and corrosion test report. Always insist on genuine XCMG 800166264; counterfeit clamps have caused catastrophic boost leaks and turbocharger damage.
XCMG tested the 800166264 stainless steel clamp under extreme conditions: -45°C cold soak, +300°C hot air cycling (1,000 cycles), and 1,000 hours of salt spray. The clamp showed no loss of clamping force, no thread corrosion, and no band deformation. The bolt remained operable after 500 tightening/loosening cycles.
For applications with continuous exposure to high‑temperature diesel soot (EGR systems), XCMG offers a high‑temperature version with a 316L stainless steel band and a heat‑treated bolt (800166264‑HT). This variant withstands continuous operation at 450°C.
Vibration resistance: The clamp withstood 10 million cycles of 15g vibration (2–200 Hz) without loosening. The rolled‑edge housing prevents the band from cutting into silicone hoses, even under extreme vibration.
