BEARING-RLR-YM 3994443 - Caterpillar

Engine Identification
Cat engines are identified with serial numbers, with performance specification numbers, and with arrangement numbers. In some of the cases, modification numbers are used. These numbers are shown on the Serial Number Plate and the Information Plate that are mounted on the engine.Cat dealers need these numbers in order to determine the components that were included with the engine. This information permits accurate identification of replacement part numbers.Engine Information Plate
Illustration 1 g02935657
(1) Engine information plate
Illustration 2 g02935876The engine information plate is located between the last two crankcase covers on the right-hand side of the engine.Serial Number Plate
Illustration 3 g02935658
(2) Engine serial number plate
Illustration 4 g00123229The serial number plate is located between the last two crankcase covers on the right-hand side of the engine.
Illustration 5 g03527776
The serial number plated is located on top of the reactor housing.