4D8648 Tapered Roller Bearing for Caterpillar Equipment

The 4D8648 tapered roller bearing is used in equipment manufactured by Caterpillar, including Caterpillar backhoe loaders, paving compactors, and engine-machine applications. The bearing is identified by the Caterpillar part number 4D8648 and the hyphenated designation 4D-8648. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The available application data identifies this bearing for selected Caterpillar machines and the Caterpillar 3054 engine-machine application. The fitment list below is limited to the models specified for part number 4D8648.

Fitment

• Caterpillar 426C backhoe loader
• Caterpillar 436C backhoe loader
• Caterpillar 438C backhoe loader
• Caterpillar 438D backhoe loader
• Caterpillar 442D backhoe loader
• Caterpillar PF-300B paving compactor
• Caterpillar PF-300C paving compactor
• Caterpillar PS-300B paving compactor
• Caterpillar PS-300C paving compactor
• Caterpillar 3054 engine-machine application

Cross-reference numbers

Specifications

Before installation, the part number on the removed bearing and the machine model should be compared with the identification and fitment information listed above. The dimensions provided are the recorded overall product dimensions: 9.3 cm in length, 4 cm in width, and 9.3 cm in depth. No separate inner diameter, outer diameter, bearing width, clearance, seal specification, or installation position is provided for this part.

The supplied identification applies to the bearing assembly listed under 4D8648. The model references include the Caterpillar 426C, 436C, 438C, 438D, and 442D backhoe loader models; PF-300B, PF-300C, PS-300B, and PS-300C paving compactor models; and the Caterpillar 3054 engine-machine application.