8S3373 Ring for Caterpillar Equipment

The 8S3373 ring is an O-ring seal used in gearbox and torque converter assemblies of Caterpillar equipment. It is designed for rotary couplings that transfer oil from stationary components to rotating parts. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part belongs to the transmission seal rings category and is identified by the Caterpillar part number 8S3373, also written as 8S-3373. Its application includes Caterpillar articulated dump trucks and Caterpillar engine-machine applications listed below.

Fitment

• Caterpillar D250E articulated dump truck
• Caterpillar D250E II articulated dump truck
• Caterpillar D300E articulated dump truck
• Caterpillar D300E II articulated dump truck
• Caterpillar 3126 engine-machine application
• Caterpillar 3306 engine-machine application
• Caterpillar 3406 engine-machine application
• Caterpillar 3406B engine-machine application
• Caterpillar 3406C engine-machine application
• Caterpillar 3406E engine-machine application

Fitment should be confirmed by the equipment model, serial number, and the part number from the assembly documentation before installation, because the listed equipment may contain different configurations.

Cross-reference numbers

Specifications

The ring is supplied as the seal identified by SKU 8S3373. The available product data does not specify additional installation hardware, retaining elements, or other components included with the part.