6Y4744 Composite Bearing — Caterpillar

6Y4744 is a composite bearing for Caterpillar equipment. It is used on selected Caterpillar asphalt pavers, track loaders, and track-type tractors listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by SKU 6Y4744 and is listed for equipment manufactured by Caterpillar. Fitment should be confirmed by matching the machine model and part number before installation.

Fitment

Asphalt pavers

• AP-1055D
• AP-650B
• AP-655D
• BG-225C
• BG-245C
• BG655D

Track loaders

• 931B
• 931C
• 931C II

Track-type tractors

• D3B
• D3C
• D3C II
• D3G
• D3K XL
• D3K2 LGP
• D4C
• D4C II
• D4C III
• D4G
• D4K XL
• D4K2 XL
• D5G

The listed application groups cover Caterpillar asphalt pavers, track loaders, and track-type tractors. The model designations should be checked against the identification plate and service documentation of the machine, especially where the same series includes several configurations or revisions.

For the asphalt paver application, the listed models are AP-1055D, AP-650B, AP-655D, BG-225C, BG-245C, and BG655D. For track loader application, the listed models are 931B, 931C, and 931C II.

For track-type tractor application, the listed models include the D3, D4, and D5 series specified above. The fitment list includes both standard model designations and configuration or generation identifiers such as II, III, XL, and LGP.

Specifications