3D4245 O-Ring for Caterpillar Equipment

O-ring 3D4245 is a sealing component used in Caterpillar articulated dump trucks, backhoe loaders, and earthmoving compactors. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is designed for use as an axial or radial seal in assemblies where an elastomeric ring is required to help separate fluids or contaminants between mating surfaces. The available equipment application data identifies the component for the Caterpillar machine models listed below.

Fitment

• Caterpillar D350E articulated dump truck
• Caterpillar D400E articulated dump truck
• Caterpillar 420E backhoe loader
• Caterpillar 430E backhoe loader
• Caterpillar 432E backhoe loader
• Caterpillar 434E backhoe loader
• Caterpillar 442E backhoe loader
• Caterpillar 444E backhoe loader
• Caterpillar 826C earthmoving compactor
• Caterpillar 836G earthmoving compactor

Equipment categories identified for this part are Caterpillar articulated dump trucks, Caterpillar backhoe loaders, and Caterpillar earthmoving compactors. Application should be checked against the machine model and the seal location before installation.

Cross-reference numbers

• 3D4245
• 3D-4245

The numbers above identify the same O-ring designation in formats with and without the hyphen. The SKU for this product is 3D4245.

Specifications

The sealing ring is supplied as a single component. The listed inner and outer diameters, cross-section, material, hardness, and SAE AS568 designation are the identifying dimensional and material data for the part. Installation position depends on the specific Caterpillar assembly in which the O-ring is used.