Caterpillar 5P-4837 Straight Orifice Adapter – 1/8" x 1/8" Hydraulic Fitting

The Caterpillar 5P-4837 Straight Orifice Adapter is a genuine Cat® hydraulic fitting designed to connect fluid-carrying lines and components in compatible Caterpillar equipment. This adapter features a compact, straight-through design with a calibrated orifice to help control fluid flow in hydraulic and other fluid systems. 

Built for use in demanding equipment applications, this fitting supports reliable fluid connections and helps maintain proper system operation when matched to the correct equipment and specifications.

Key Features

• Genuine Caterpillar (Cat®) replacement part

• Part number: 5P-4837 (also written as 5P4837)

• Straight orifice adapter design

• Nominal connection size: 1/8" x 1/8"

• PTF-SAE male thread-to-port connection

• Orifice diameter: 0.8 mm

• Designed for compatible Cat hydraulic and fluid systems

Compatible Caterpillar Equipment

Published Cat parts information lists applications including the following models and equipment types. Verify fitment by machine serial number before ordering. 

• Wheel Loaders: 988B, 992C

• Generators: SR4

• Cold Planers: PR-450, PR-450C

• Industrial Engines: 3408B, 3412

• Generator Set Engines: 3408, 3408B, 3408C, 3412, 3412C

• Marine Engines: 3408, 3408B, 3412

Product Specifications