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2D2978 Spider A Fits Caterpillar Models
2D2978 Spider A Fits Caterpillar Models
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£30.00 GBP
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One New Aftermarket Replacement Spider A (Universal Joint) for Caterpillar (Cat) Motor Graders
This Spider A is a universal joint cross assembly used in the driveline of Caterpillar motor graders. It transfers torque through the drivetrain while accommodating angular misalignment, making it a critical wear component in grading and road construction applications. This aftermarket replacement fits directly in place of Caterpillar OEM part number 2D2978 (also referenced as 2D-2978).
Specifications
- U-Joint Cap Diameter: 24.6 mm
- U-Joint Cap Length: 38.6 mm
- Snap Ring Style: Inside snap ring
- Grease Nipple: None
Compatible Models
Caterpillar Motor Graders: 12E, 12F, 14E, 16, 120, 120B, 140, 140B, AUTOGRADER 112
Replaces Part Number(s):
2D2978, 2D-2978
Aftermarket Interchange Numbers
6G0976, Spicer 5-13500X, Stahl CZ-106, AJ7329H
New aftermarket replacement part - not remanufactured, not used.



