Caterpillar original Diesel Injector 0R-8473 1278213 Replacement for OEM 3114 3116 3126 Engine 320 322 325 535B Skidder Construction Machinery Parts original new injector
Product Details
Caterpillar Diesel Injector 0R-8473
,OEM 3114 3116 3126 Engine Injector
,Caterpillar 320 322 325 Skidder Injector
Caterpillar original Diesel Injector 0R-8473 1278213 Replacement for OEM 3114 3116 3126 Engine 320 322 325 535B Skidder Construction Machinery Parts original new injector
|
Fuel Type |
Diesel |
|
Condition |
Remanufactured |
|
Applicable Engine |
Caterpillar CAT 3114 and CAT 3116 mechanical diesel engines |
|
Injector Type |
Mechanical Unit Injector (MUI) |
|
Quality Standard |
OE specification remanufactured replacement |
|
Packaging |
Sealed protective packaging |
|
Fuel System |
Mechanical Unit Injection (non-common-rail) |
|
OE Number |
0R-8473 / 0R8473 |
|
Brand |
CAT |
|
Cross Number / Universal Number |
0R-8473, 0R8473, 127-8213, 1278213, 101-8673, 1018673, 0R-4374, 0R4374, 0R-3382, 0R3382, 4P-1734, 4P1734 |
|
Vehicle / Equipment Application |
CAT 3116 industrial engines, excavators, trucks, and power units equipped with CAT 3114 or 3116 engines |
|
Application Type |
Construction machinery, diesel engine rebuilding, fleet maintenance, power generation, industrial equipment, diesel parts distribution, and repair workshop |
The CAT 3116 3114 Mechanical Unit Fuel Injector 0R-8473 is a remanufactured dual scroll 8mm nozzle injector engineered for Caterpillar 3114 and 3116 mechanical diesel engines. Designed as a direct OE-spec replacement, it supports fuel quantity control, spray atomization, and stable injection timing to maintain cylinder-to-cylinder fuel balance. This injector addresses common performance issues including hard starting, rough idle, and excessive smoke while protecting the piston crown from overheating caused by degraded spray patterns.
Compatible across multiple interchange numbers such as 127-8213, 101-8673, 0R-4374, 0R-3382, and 4P-1734, this mechanical unit injector serves a wide range of applications including excavators, industrial equipment, trucks, and stationary power units. The mechanical design eliminates the complexity of common-rail electronics, making it well suited for engine rebuilds, fleet maintenance programs, and parts distribution operations where reliability and OE form-fit-function are essential.
Installation requires clean diesel fuel meeting Caterpillar specifications, replacement of all sealing washers and O-rings, cleaning of the injector bore and cylinder head seating, and priming of the fuel system before initial start. Periodic inspection of fuel filters, water separators, and return fuel flow helps preserve injector performance and service life in demanding industrial and heavy-duty operating environments.
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