9W3621 Bearing for Caterpillar Equipment

9W3621 is a bearing used in equipment manufactured by Caterpillar, including track-type tractors, pipe-layers, skidding Caterpillar tractors, and excavators. This is a new aftermarket bearing manufactured by CTP (Costex Tractor Parts).

Fitment

The bearing is listed for the following Caterpillar equipment models and machine series:

• Track-Type Tractor: 4, 4A, 4P, 4S, 54, 55, 57H, 8SU, 58L, 59L, 59N, 8, 8A, 8U, 9, 9SU, D4H, 9U, D8, GC, D8GC, D8N, D8R, D8R II, and D9N.
• Pipe-Layer: 578, 583R, 587R, and 589.
• Skidding Caterpillar Tractor: 4P, 54H, and D4HTSK II.
• Excavator: 245D, 375-A, 375-A L, and 5080.

Track-type tractor applications:

• Model 4
• Model 4A
• Model 4P
• Model 4S
• Model 54
• Model 55
• Model 57H
• Model 8SU
• Model 58L
• Model 59L
• Model 59N
• Model 8
• Model 8A
• Model 8U
• Model 9
• Model 9SU
• Model D4H
• Model 9U
• Model D8
• Model GC
• Model D8GC
• Model D8N
• Model D8R
• Model D8R II
• Model D9N

Pipe-layer applications:

• Model 578
• Model 583R
• Model 587R
• Model 589

Skidding Caterpillar tractor applications:

• Model 4P
• Model 54H
• Model D4HTSK II

Excavator applications:

• Model 245D
• Model 375-A
• Model 375-A L
• Model 5080

Cross-reference numbers

• 9W-3621
• 9W3621

The number 9W3621 is also written in the hyphenated format 9W-3621. Both formats identify the bearing listed for the Caterpillar equipment applications above.

Specifications