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The c-aterpillar 304-3637 fuel injector is a premium, OEM-compatible Common Rail fuel injector specifically engineered for c-aterpillar C9.3 series diesel engines, with cross-reference part numbers 3043637, 304-3637, 324-5467, 364-8024, 392-9046, 3245467, 3648024, and 3929046. As a critical core component of the C9.3 engine’s fuel delivery system, it strictly adheres to c-aterpillar’s original design standards and performance parameters, designed exclusively for the C9.3 engine (9.3L displacement, 270–390 horsepower output) and also compatible with C9.3-powered heavy-duty equipment, ensuring perfect fit and optimal performancesuperscript:2:. Equipped with a precision-machined 6-hole VCO nozzle (0.0157 inch hole size) with a 162° spray pattern, this injector delivers ultra-accurate fuel metering (error ≤±1.6%), precise injection timing, and superior atomization effect—its atomization particle size can be as fine as 13.9 microns, forming a 99.3% suspended oil film to achieve an ideal air-fuel mixture ratio, which ensures efficient, stable, and clean combustion. With a rated working pressure of 2250–2650 bar, it can effectively reduce fuel consumption by 3.8–5.4% compared to conventional injectors and minimize harmful emissions (CO reduced by 35%, HC reduced by 52%), fully meeting EU Stage V, EPA Tier 4 Final, and global environmental protection standards. Produced in strict accordance with c-aterpillar OEM standards, ISO 9001:2015 and CE certific-ation requirements, each injector undergoes 100% professional factory bench testing, including electrical characteristics, high-pressure performance verific-ation, spray pattern detection, leakage test, and strict sealing inspection, ensuring reliable performance and consistent quality even in the harshest heavy-duty working conditions such as high temperature, high dust, and long-term continuous operation. It features a high-strength coated plunger and corrosion-resistant stainless steel body with vacuum quenching heat treatment (hardness HRC66-69), which significantly enhances wear resistance, corrosion resistance, and service life, perfectly matching the C9.3 engine’s overhaul cycle and adapting to harsh operating environments such as construction sites, mining areas, industrial workshops, and heavy-duty voc-ational vehicles. As a direct OEM replacement part, it supports plug-and-play installation without any modific-ations to the engine or fuel system, effectively solving common engine problems such as misfires, power loss, excessive fuel consumption, and abnormal emissions caused by injector wear, aging, or failure. Available as a new aftermarket part with a 6-month to 12-month quality warranty (optional), flexible MOQ (1 piece minimum for sample order, 5 pieces for bulk orders), neutral or original c-aterpillar export packaging (customizable according to customer requirements), and fast global logistics delivery (3-7 working days via DHL, FedEx or TNT), the 304-3637 injector is a cost-effective and reliable choice for maintaining the peak performance of c-aterpillar C9.3 series engines, widely supplied to global aftermarket markets including North America, Europe, and Southeast Asia. Its optimized electromagnetic solenoid control ensures fast response (≤16.8ms), enabling multiple injections to further optimize the combustion process, reduce noise, and lower emissions, while its stable performance ensures minimal downtime for equipment operations, with a supply capacity of 320 pieces per month to meet bulk order demands.

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