Seal 1P4879 for Caterpillar Equipment

Seal 1P4879 is a stem seal used in hydraulic equipment manufactured by Caterpillar. It is installed in a gland and forms the primary sealing point around the rod, helping prevent hydraulic oil from passing through the sealed assembly. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The seal is listed for use with the following Caterpillar equipment models and machine series:

• Track-type tractors: 183B, 8D, 8S, D8H, D8K
• Pipelayer: 583K
• Excavators: 225, 225B, 229, 229D, 231D, 235, 235B, 235C
• Forest product machine: 227

Fitment should be checked against the equipment model, the installed sealing arrangement, and the dimensions of the existing part before installation. The model information above is based on the listed application data for seal 1P4879.

Cross-reference numbers

Numbers 1P4879 and 1P-4879 identify the same seal reference in the available product data. The hyphenated form is the equipment manufacturer part-number format shown for this item.

Specifications

The groove and rod dimensions identify the sealing geometry specified for this part: a 102 mm groove diameter, 17 mm groove width, and 76 mm rod diameter. The external length, width, and depth measurements are the listed package or part dimensions and should not be substituted for the groove and rod measurements when checking installation compatibility.