Cummins engine spare parts Turbocharger fuel supply pipe C5547724

Built to withstand the high-pressure fuel supply requirements of Cummins turbocharged engines, this fuel supply pipe is crafted from seamless 316L stainless steel—offering a tensile strength of ≥580MPa and yield strength of ≥210MPa, far exceeding the performance of ordinary carbon steel pipes. The material’s excellent fatigue resistance enables it to endure continuous fuel pressure of 1600 bar (common rail system pressure) and pressure fluctuations up to 2000 bar without bursting or deformation. The pipe undergoes cold drawing and annealing processes, ensuring uniform wall thickness (3mm) and smooth inner surface (Ra ≤0.4μm), which minimizes fuel flow resistance and prevents pressure loss. Finite element analysis confirms it can withstand 100 million pressure cycles without structural failure, matching the engine’s service life

Engineered for leak-proof fuel delivery, the C5547724 fuel supply pipe features precision-machined connection interfaces that ensure a tight seal. The M14×1.5 threaded ends undergo rolling tapping, achieving a thread precision grade of 6H and a surface finish of Ra ≤0.8μm, which forms a secure fit with the fuel rail and turbocharger connectors. Each threaded end is equipped with a stainless steel conical seal washer (hardness HRC30-35) that deforms slightly under torque (45-50N·m), creating a metal-to-metal seal that eliminates leakage. The pipe’s welding joints (for pre-formed bends) are made via TIG welding with full penetration, ensuring no internal pores or cracks—leakage rate is ≤0.01L/min at 1600 bar, far below the industry limit of 0.1L/min

Designed to endure the harsh conditions of the engine compartment (high temperature, fuel impurities, road salt), the fuel supply pipe exhibits exceptional corrosion and heat resistance. The 316L stainless steel material is inert to diesel fuel, biodiesel, and fuel additives, resisting chemical corrosion that causes pipe degradation. The pipe’s external surface undergoes passivation and electropolishing treatment, forming a dense oxide layer that resists rust and pitting—passing 2000-hour neutral salt spray testing (ASTM B117) with no red rust. It maintains structural stability at continuous operating temperatures up to 200℃ (from the turbocharger and exhaust system) and extreme cold down to -40℃, avoiding brittleness or cracking in frigid environments

Optimized for efficient fleet maintenance, the turbocharger fuel supply pipe features a user-friendly design that simplifies installation and reduces downtime. Its pre-formed bends eliminate the need for on-site bending, ensuring precise alignment with the engine’s mounting points. The pipe comes with pre-installed rubber mounting clips that fit the original engine bracket holes, securing the pipe and preventing vibration-induced wear. Installation requires only a torque wrench and standard hand tools—two technicians can complete replacement in 45 minutes, 50% faster than non-OE pipes that require custom fitting. The pipe’s smooth inner surface reduces carbon deposit formation, eliminating the need for regular cleaning. Backed by a 1-year/100,000km warranty, it minimizes maintenance frequency and ensures reliable fuel supply to the turbocharger, reducing long-term operational costs