3P0657 O-Ring Seal for Caterpillar Equipment

3P0657 is an O-ring seal used in Caterpillar engines and machines for sealing fixed and certain moving connections. The seal is intended to prevent leakage at the installation point. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The seal is listed for Caterpillar engine and machine applications, including the following models and series:

• Caterpillar 3116
• Caterpillar 3126
• Caterpillar 3408
• Caterpillar 3408C
• Caterpillar 3408E
• Caterpillar 3508
• Caterpillar 3508B
• Caterpillar 3512
• Caterpillar 3512B
• Caterpillar 3512C

Fitment should be verified against the equipment model, engine configuration, and the part number removed from the machine before installation. The listed applications identify Caterpillar equipment for which this O-ring seal is specified; they do not indicate that the part is manufactured by Caterpillar.

Cross-reference numbers

Specifications

The dimensions listed above are the supplied product dimensions. The cross-section diameter and inner diameter identify the O-ring size, while the length, width, and depth values correspond to the recorded product measurements. The seal is supplied as an individual O-ring; no additional components or installation hardware are specified in the available product data.