4L3756 Thrust Bearing for Caterpillar Equipment

4L3756 is a thrust bearing for Caterpillar equipment and is listed in the Engine Bearings category. This is a new aftermarket thrust bearing manufactured by CTP (Costex Tractor Parts).

The part is identified for use in Caterpillar engines and equipment with D379, D398, and D399 engine applications. The available application data includes engine and generator kits, ship equipment, and industrial engines. Model designations are listed below according to the corresponding equipment application.

Fitment

• Engine and Generator Kit: Caterpillar D379B, D398B, D399
• Ship Equipment: Caterpillar D379A, D379B, D398A, D398B, D399
• Engine Industrial: Caterpillar D379, D379B, D398, D398B, G398, G399, D399, G379, G379A

The fitment information applies to the listed Caterpillar engine and equipment series. The same engine designation may appear in more than one application group because the source data separates industrial, ship, and engine-generator uses.

Before installation, the equipment model, engine designation, and existing bearing number should be checked against the part being replaced. The application list identifies the compatible series but does not specify an individual machine serial-number range.

Cross-reference numbers

• 4L3756
• 4L-3756
• 3119366
• 6L2135
• 5L7684
• 6L2166

4L3756 and 4L-3756 are two written formats of the same referenced part number. The numbers 3119366, 6L2135, 5L7684, and 6L2166 are listed as cross-reference numbers for this thrust bearing. Cross-reference information should be verified against the engine configuration before ordering or installation.

Specifications

The stated dimensions are 11.3 cm in length, 4.2 cm in width, and 11.3 cm in depth. The listed weight is 1.8 lb. No additional information about material, thread specifications, bearing clearance, installation position, or included components is provided for this part.