Ring for Caterpillar Transmission Seal, 1A1420

The 1A1420 ring is a transmission seal ring used in Caterpillar equipment. It is identified by the Caterpillar equipment part number 1A1420 and the hyphenated reference 1A-1420. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is intended for transmission sealing applications on the Caterpillar machines listed below. The equipment brand referenced for fitment is Caterpillar; the ring is supplied as an aftermarket part and is not identified as a Caterpillar-manufactured component.

Fitment

• Tracked bulldozers: Caterpillar D5, D7G
• Excavators: Caterpillar 235B
• Pipe layers: Caterpillar 561B, 561C
• Track loaders: Caterpillar 977D, 977H

The listed fitment includes several Caterpillar equipment types: tracked bulldozers, excavators, pipe layers and track loaders. Before installation, the part number and machine model should be checked against the transmission assembly documentation, because the same equipment series may contain different configurations.

Cross-reference numbers

• 1A1420
• 1A-1420

Part number 1A1420 is the primary reference supplied for this ring. The designation 1A-1420 is the same reference written with a hyphen and is used as an interchangeable identification for the part.

Specifications

The supplied dimensions are 15.24 cm in length, 20.32 cm in width and 2.54 cm in depth. The listed weight is 0.1 lb. No additional information is provided for the ring material, internal or external diameter, cross-section, thread, installation position or included components.