original 0R-0471 Injection Valves Fuel Injector 102-7038 101-4561 0R-8467 for 3116 Truck Engine 320B 322B new injector original new original new injector

Specifically engineered for the 3116 inline six-cylinder 4-stroke diesel engine, this fuel injector delivers precise fuel metering through a purely mechanical unit injector design driven directly by the camshaft. With a 6.6-liter displacement and output range of 205 to 350 HP, the 3116 platform relies on consistent injection timing and quantity, which this assembly provides via hardened multi-hole sacless nozzle tips and precision-machined plunger, barrel, and spring components. The injector is built to OEM tolerances using thermal and wear-resistant materials, ensuring long service life under the heavy cyclic loads typical of excavators, backhoe loaders, trucks, marine engines, and generator sets.

Installation requires strict adherence to service procedures, including confirmation of part numbers, recording of engine serial and CPL data, replacement of all O-rings and seals, verification of injector seating height, and dial-gauge timing checks. After installation, the fuel system must be primed to remove trapped air, and the engine monitored for leaks, idle stability, smoke, and load response. Routine maintenance—clean diesel supply, regular fuel filter and water separator service, and periodic bench testing of nozzle pop pressure and spray pattern—helps maintain consistent atomization and prevents common failure modes such as hard starting, rough idle, black smoke, and power loss.

This injector carries an extensive cross-reference list, including 0R-0471, OR0471, 4P-9077, 9Y-4982, 101-4561, 127-8205, 0R-3389, 0R-8467, 0R-8682, 127-8220, 4P-2995, 7E-8952, 105-1694, 7E-8727, 162-0212, and 127-8230, allowing broad interchangeability for OEM and aftermarket replacement needs. Available in original, aftermarket, and remanufactured options, it supports B2B buyers serving construction, mining, marine, and power generation fleets that depend on the proven 3116 engine family.