1B3953 Cone-Roller Bearing Fits Caterpillar Models

One New Aftermarket Replacement Cone-Roller Bearing for Caterpillar Equipment

This tapered roller bearing cone (1B3953 / 1B-3953) is an aftermarket replacement for Caterpillar articulated dump trucks, motor graders, wheel tractor-scrapers, excavators, soil compactors, and machine-mount engines. The cone (inner ring assembly) pairs with a separately sourced cup (outer ring) to form a complete tapered roller bearing capable of handling combined radial and axial loads. Interchange number for the Timken 2788 tapered roller bearing cone series.

Specifications

• Type: Tapered Roller Bearing Cone (single row)
• Cone Bore (ID): 1.500 in (38.1 mm)
• Cone Width: 0.9375 in
• Cone Length: 1.010 in
• Cone Backface Radius: 0.140 in

Compatible Models

Caterpillar (Cat) Articulated Dump Trucks: D350E, D350E II, D400E, D400E II

Caterpillar Soil Compactors: 836, 836G, 836H, 834H

Caterpillar Motor Graders: 12G, 120G, 130G, 140G, 160G

Caterpillar Wheel Tractor-Scrapers: 611, 615, 621, 621E, 621F, 621G, 621K, 623E, 623F, 623G, 623H, 623K, 627, 627E, 627F, 627G, 627H, 627K

Caterpillar Excavators: 215, 215B

Caterpillar Graders: 24H, 24M

Caterpillar Engines (machine-mount): 3304, 3306, 3406

Replaces Part Number(s):

1B3953, 1B-3953, 1B3954, 37499, 776374

Aftermarket Interchange Numbers

Timken 2788; also referenced as 1B-3953/E and 1B-3953-T

New aftermarket replacement part - not remanufactured, not used.