Fuel Injection Pump 1-15603334-1 for ISUZU 6HK1 Engine The 1-15603334-1 fuel injection pump is a high-precision, heavy-duty fuel system component designed exclusively for industrial diesel engines. Responsible for generating and timing the extreme fluid pressures required for cylinder combustion, this injection pump ensures consistent power output, optimized fuel atomization, and responsive throttle control. Manufactured to withstand rigorous operating conditions, this premium replacement pump helps restore original equipment performance, reduce exhaust emissions, and maintain fuel efficiency in demanding earthmoving applications. Product Specifications Precision-engineered to exact mechanical and electronic calibrations to guarantee seamless integration with high-pressure delivery networks. Part Number: 1-15603334-1 Alternative Format: 1156033341 Product Class: Diesel Fuel Injection Systems Injection Type: Mechanical / Electronic Controlled Injection Pump Compatible Engine Brand: ISUZU Cross-Reference & Interchangeable Part Numbers This fuel injection pump corresponds with multiple equipment manufacturer references, historical supersessions, and specialized component codes: 1-15603334-0 (Earlier Production Reference) 1156033340 / 1156033341 (Alternative Numerical Formats) 294000-0019 (Denso Manufacturing Cross-Reference) 4647313 (Hitachi Primary Equipment Reference) Application and Machinery Compatibility Accurately calibrated to deliver optimal fuel curve mapping and structural alignment for the following heavy machinery and powertrain series: Compatible Engine Models ISUZU 6HK1 Series Diesel Engine ISUZU 6HK1X Series Tier 3 / Stage IIIA Engines Compatible Crawler Excavators Hitachi ZX330 Series Hitachi ZX330-3 / ZX330LC-3 Hitachi ZX350 / ZX350LC Series Installation and Fuel System Calibration Notes Technical Recommendation: Diesel injection pumps are highly sensitive to microscopic foreign particles and fuel contamination. Prior to mounting the new 1-15603334-1 pump assembly, thoroughly flush the entire fuel supply line, drain any water or sediment from the fuel tank, and replace all primary and secondary fuel filter elements. Ensure the engine timing marks are perfectly aligned according to factory specifications during installation to prevent timing advances or cylinder misfires. Related Part Numbers NO P.N. NAME 1 708-1H-00231 Komatsu 708-1H-00231 Hydraulic Main Pump for D85-15 Crawler Dozer 2 374-2640 Caterpillar C7.1 Engine ECM Controller 374-2640 for 320D2 323D2 329D2 ... 3 708-1S-00240 708-1S-00240 Hydraulic Pump Assembly for Komatsu D65-12 D65-15 D275-5D... 4 0445020608 Sany SY245 Fuel Injection Pump 0445020608 32R65-00100 5 6245-71-1100 Komatsu PC1250-8 Fuel Injection Pump 6245-71-1100 6 3G-8746 Hydraulic Cylinder Rod Assembly 3G-8746 for Caterpillar D7H D7R Tracto... 7 706-7K-01040 706-7K-01040 Swing Motor Assembly for Komatsu PC450-7 PC450LC-7 8 316-2157 316-2157 107-6882 Main Control Valve for Caterpillar 307 9 421-20-24510 Komatsu Transmission Axle Assembly 421-20-24510 for WA420-3 10 AK5337 AK5337 Flange for Komatsu 830E Mining Truck Front Wheel Rim Assembly 11 561-35-61601 Komatsu 561-35-61601 Relay Valve Assembly HD785-5 HD785-7 12 454-5091 Caterpillar E320D2 Fuel Injector 454-5091 T419385 for C7.1 Engine 13 4436203 Hitachi EX2500/3600/8000 Hydraulic Pump 4436203 14 708-2H-00453 Main Hydraulic Pump 708-2H-00453 708-2H-00450 for Komatsu PC400-7/450-... 15 723-63-24100 Komatsu 723-63-24100 723-63-22600 Main Control Valve for D65-15 D85-15... 16 56B-54-14351 Komatsu Regulator 56B-54-14351 for HD465 HD785 Mining Trucks 17 14X-911-7112 Komatsu PC1250SP-8R Air Conditioning Compressor 14X-911-7112 18 702-75-01900 Komatsu Valve Assembly 702-75-01900 for PC750SE-7 19 393-3606 Seal Kit 393-3606 for Caterpillar (CAT) Hydraulic Cylinder Systems 20 17M-911-3530 Komatsu PC200-8 D65EX Cabin Air Filter 17M-911-3530 21 6240-61-1106 Komatsu PC1250-7 Water Pump 6240-61-1106 22 2708317 Starter & Alternator 2708317 2980532 for Scania DC13 Heavy Truck E... 23 17A-22-11132 Komatsu Cylinder 17A-22-11132 - D155A-3/5/6/6R Steering Clutch Brake 24 6215-31-1101 Crankshaft 6215-31-1101 6219-31-1100 for Komatsu HD785 PC2000-8
