1M3909 Engine Bearing for Caterpillar Equipment

1M3909 is a plain engine bearing with a Babbit lining on a steel base and formed holes. It is used in Caterpillar earthmoving compactors and Caterpillar engine applications, including the equipment and engine models listed below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The bearing is identified by the SKU 1M3909. The supplied dimensional data includes the outside diameter, inside diameter, and overall length. These measurements describe the bearing itself and should be checked against the installed component and the applicable engine service specifications before assembly.

Fitment

The bearing is listed for the following Caterpillar equipment and engine applications:

• Caterpillar Earthmoving Compactor
• Caterpillar Engine - Machine

Compatible Caterpillar models and engine series:

• Caterpillar 836G
• Caterpillar 836H
• Caterpillar 3176C
• Caterpillar 3306
• Caterpillar 3406
• Caterpillar 3406B
• Caterpillar 3406C
• Caterpillar 3406E
• Caterpillar 3408
• Caterpillar 3408C

Fitment is specified for the model and engine designations above. The equipment brand covered by this listing is Caterpillar; CTP is identified as the manufacturer of the spare part, not the manufacturer of the equipment.

Cross-reference numbers

The part is listed under the following number formats:

• 1M3909
• 1M-3909

1M3909 is the catalog SKU used for this listing, while 1M-3909 is the corresponding hyphenated number format. No additional supplier or equipment-manufacturer numbers are provided in the available product data.

Specifications

The dimensional values are provided in both metric and imperial units where available. The outside diameter, inside diameter, and length refer to the bearing dimensions; the separately listed length, width, and depth are the supplied product specification values.