Caterpillar original Fuel Injector 0R-3002 Common Rail Diesel Injector Nozzle Replacement for 7E-8727 0R-8475 0R-8471 0R-8483 Truck Engine Parts original new injector

The Caterpillar CAT 3116 3114 diesel fuel injector with OE number 0R-3002 and 7E-8727 is engineered to deliver precise fuel metering and controlled atomization for heavy-duty Caterpillar engines. Listed for CAT 3114 and CAT 3116 engines, this reman-style injector supports multiple search numbers including 0R-3002, 0R3002, 7E-8727, 7E8727, CA0R3002 and CA7E8727, allowing accurate cross-reference during procurement and replacement. It is designed for stable combustion, reduced smoke and controlled fuel consumption, providing reliable power output under high load, vibration, temperature variation and continuous-duty operation. The injector is suitable for global aftermarket distribution, fleet repair and diesel engine maintenance across construction and earthmoving equipment.

This injector fits a wide range of Caterpillar machinery, including excavators such as 205B, 213B, 214B, 214B FT, 224B, E110B, E120B, E240B, E240C, EL240B and EL240C, backhoe loaders 446 and 446B, compactors CB-434, CP-533, CP-563, CS-531, CS-533, CS-563, CS-573 and CS-583, and asphalt pavers AP-1000 and AP-1050. Before installation, operators should compare the existing injector number with 0R-3002, 7E-8727, 0R3002 or 7E8727, confirm engine model, serial number and arrangement number, clean the injector bore and fuel connection area, replace required sealing parts, and keep the fuel system clean. After installation, prime the fuel system, check for leaks and test idle stability to ensure proper performance.

Common fault symptoms related to worn or failed injectors include hard starting, rough idle, black smoke, white smoke, power loss, fuel knock, high fuel consumption, fuel leakage, cylinder misfire and excessive exhaust temperature. Possible causes involve poor atomization, internal leakage, restricted nozzle, uneven cylinder fuel delivery, damaged seals or incorrect installation. Recommended actions include injector testing, fuel pressure inspection, fuel filter replacement, leak inspection and professional diesel system diagnosis. To maximize service life, use clean diesel fuel, replace fuel filters on schedule, drain the water separator regularly and store injectors in sealed, clean and dry packaging when not in use.