Dongfeng Xinjiang truck parts Muffler intake pipe 1203410-H5XF01Y

Built to enhance exhaust system efficiency, this intake pipe features a precision aerodynamic design that minimizes flow resistance. The inner wall undergoes a honing process to achieve a surface roughness of Ra ≤0.8μm, eliminating turbulence caused by uneven surfaces. The 30° bent section uses a gradual curvature (radius 150mm) instead of sharp angles, reducing flow loss by 25% compared to conventional bent pipes. This optimized design lowers exhaust backpressure to ≤3kPa at rated engine speed (2200rpm), allowing the engine to expel exhaust gases more smoothly. The reduced backpressure improves engine power output by 3-5% and reduces fuel consumption by 2-3%, particularly beneficial for long-haul logistics trucks with high load demands

Engineered to endure the harsh environment of diesel engine exhaust, the intake pipe boasts exceptional structural strength. The pipe body is made of 439 stainless steel with a thickness of 2.0mm—this ferritic stainless steel offers superior thermal fatigue resistance and corrosion resistance compared to carbon steel. It withstands continuous exhaust temperatures of up to 550℃ and intermittent peak temperatures of 650℃ without deformation. The flange connections are reinforced with 5mm-thick stainless steel plates, ensuring tight sealing with the exhaust manifold and silencer. The pipe undergoes a 100,000km vibration test (5-2000Hz, ISO 16750-3) with no cracks or loose connections, meeting the durability requirements of commercial trucks

Designed for Dongfeng Xinjiang trucks operating in diverse regions—from coastal high-salt areas to desert high-temperature zones—the intake pipe exhibits excellent resistance to corrosion and heat. The outer surface undergoes a two-step anti-corrosion treatment: zinc phosphate pretreatment and high-temperature ceramic coating (thickness 80μm), passing 1200-hour salt spray testing (ASTM B117) with no red rust. The inner surface is coated with a heat-resistant aluminum-silicon alloy layer, preventing corrosion from acidic exhaust gases (e.g., sulfur dioxide) and reducing carbon deposition. The pipe maintains structural integrity through 500 thermal cycles (-40℃ to 500℃), adapting to extreme temperature changes in northeast China and northwest desert regions

Optimized for efficient maintenance of commercial truck fleets, the intake pipe features a user-friendly design. The 4-bolt flanges at both ends use M10×25 galvanized high-strength bolts (grade 8.8) that match the original mounting holes, requiring only a torque wrench (25-30N·m) for installation. Two technicians can complete the replacement process in 30 minutes, 40% faster than non-OE parts. The integrated mounting brackets come with pre-installed rubber bushings, reducing vibration transfer to the chassis. The pipe’s smooth inner wall minimizes carbon deposition, eliminating the need for regular cleaning—maintenance is only required every 150,000km. Additionally, the clear part number and direction markings prevent installation errors, further streamlining the maintenance process