8N6739 Internal Snap Ring for Caterpillar Equipment

8N6739 is an internal snap ring used in Caterpillar equipment, including cold planers, earthmoving compactors, and engine-machine applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The retaining ring is designed for internal installation in a component assembly. The supplied part data identifies the ring as rectangular in shape, with a free diameter of 1.71 in and a thickness of 0.252 in. The part is listed for Caterpillar machines and engines using the 8N6739 retaining ring specification.

Fitment

The 8N6739 internal snap ring is used on the following Caterpillar equipment types:

• Caterpillar cold planers
• Caterpillar earthmoving compactors
• Caterpillar engine-machine applications

Compatible Caterpillar models listed for this part:

• PM-565 cold planer
• PM-565B cold planer
• 836 earthmoving compactor
• 3408 engine
• 3408C engine
• 3408E engine
• 3412 engine
• 3412D engine
• 3412E engine
• C27 engine

Fitment should be verified against the machine model, serial number, and the retaining ring position in the assembly before installation. The model list above reflects the Caterpillar applications provided for SKU 8N6739.

Cross-reference numbers

• 8N6739
• 8N-6739

8N6739 and 8N-6739 identify the same internal snap ring reference in the supplied part information.

Specifications