6J1972 Piston Seal for Caterpillar Equipment

The 6J1972 is a hydraulic piston seal used in Caterpillar articulated dump trucks. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The seal is identified by SKU 6J1972 and is intended for hydraulic applications on the Caterpillar equipment models listed below. The available product data identifies the component as a piston seal with seal form Type 1.

Fitment

This piston seal is listed for Caterpillar articulated dump trucks, including the following models and model variants:

• Caterpillar 725
• Caterpillar 730
• Caterpillar 735
• Caterpillar 740
• Caterpillar D250E
• Caterpillar D250E II
• Caterpillar D300E II
• Caterpillar D350E
• Caterpillar D350E II
• Caterpillar D400E

Fitment is specified for the Caterpillar articulated dump truck equipment group. The model designation and machine configuration should be checked against the seal dimensions before installation.

Cross-reference numbers

The part is identified by the following number formats:

• 6J1972
• 6J-1972

6J1972 is the SKU and primary part number provided for this piston seal. The hyphenated designation 6J-1972 is another written format of the same number.

Specifications

The dimensional data includes the groove diameter, outer diameter, hole diameter and groove width supplied for the seal. Groove diameter H is specified with a tolerance of ±0.003 in, while groove width A is specified with a tolerance of ±0.002 in.

Before fitting, compare the seal dimensions and part-number format with the hydraulic assembly and the Caterpillar machine documentation. The listed dimensions are provided in inches unless another unit is stated.