2D2978 Spider A Fits Caterpillar
2D2978 Spider A Fits Caterpillar
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One New Aftermarket Replacement Spider and Bearing Assembly Fits Caterpillar (Fits CAT) Equipment
This aftermarket replacement Spider and Bearing Assembly (2D2978) is a differential drivetrain component Fits Caterpillar (Fits CAT) heavy construction equipment. The spider assembly sits at the heart of the differential, distributing torque between the axle shafts and allowing for speed differentiation during turns. This part is also cataloged as a Spider and Bearing Assembly and is confirmed compatible with both Fits Caterpillar and Fits John Deere equipment.
Compatible Equipment
Fits Caterpillar (Fits CAT): Verify specific model fitment with your serial number. Compatible equipment makes include Fits Caterpillar and Fits John Deere -- confirm application before ordering.
Replaces Part Number(s):
2D2978, 2D-2978
Aftermarket Interchange Numbers
6G0976, 6G976, AJ7329H
New aftermarket replacement part - not remanufactured, not used.
