5J7942 Piston Wear Ring for Caterpillar Equipment

The 5J7942 piston wear ring is used in Caterpillar Wheeled Tractor-Scraper equipment. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the SKU 5J7942. The available application data covers several Caterpillar Wheeled Tractor-Scraper models and model series, including machines from the 621, 623, 627, 631, 633, 637, 639, 641, 651 and 657 ranges.

Fitment

This piston wear ring is listed for the following Caterpillar Wheeled Tractor-Scraper models:

• 621
• 621B
• 621R
• 623
• 623B
• 627
• 627B
• 631C
• 631D
• 633C
• 633D
• 637
• 637D
• 639D
• 641
• 641B
• 651
• 651B
• 657
• 657B

Fitment is specified for the Wheeled Tractor-Scraper equipment type. The model suffixes shown above are part of the application reference and should be matched with the machine identification and the existing component before installation.

Cross-reference numbers

The following designations identify the same part reference in the available product data:

The unhyphenated SKU format and the hyphenated 5J-7942 format refer to the piston wear ring listed for the Caterpillar applications above.

Specifications

The dimensional references include the outside diameter, the A width dimension and the B inner diameter dimension. The stated tolerances apply to the corresponding width and inner-diameter measurements. Overall product dimensions and component dimensions are presented separately in the available specifications.