6T0252 Transmission Seal Ring for Caterpillar

The 6T0252 transmission seal ring is an O-ring used in transmission and torque converter rotary couplings on Caterpillar equipment. It is installed at the interface between stationary and rotating components to support oil transfer and limit fluid leakage in the coupling assembly.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The part is listed for Caterpillar tracked bulldozers and pipe-layers using the 6T0252 transmission seal ring application.

Fitment

The seal ring is used on the following Caterpillar equipment models and machine series:

Tracked bulldozers:

• 57
• 7
• 7A
• 7S
• 7SU
• 7U
• 8
• D6H
• 8A
• 8S
• D10N
• D7H
• D8L
• D9L
• D9N

Pipe-layers:

• 589
• 578

Fitment is determined by the equipment model and the transmission or torque converter configuration. The part number should be compared with the number installed in the machine before ordering or fitting the seal ring.

Cross-reference numbers

The numbers 6T0252 and 6T-0252 refer to the same seal ring identification, with the second format including a hyphen. The listed number is associated with the transmission seal ring used in the specified Caterpillar equipment applications.

Specifications

The seal ring is positioned in the rotary coupling area of the transmission or torque converter. Its stated function is to maintain the oil passage between stationary and rotating parts while reducing leakage through the coupling. The inner diameter and cross-section orientation are the stated dimensional parameters for checking compatibility with the sealing groove and mating components.

The product dimensions listed for the part are 20.32 cm in length, 20.32 cm in width, and 2.54 cm in depth. The listed weight is 0.1 lb. The supplied part identification is 6T0252, also written as 6T-0252.