1B3993 Tapered Roller Bearing Cone for Caterpillar

The 1B3993 is a tapered roller bearing cone used in Caterpillar equipment. It is fitted to selected Caterpillar excavators and forest machines, including the 215, 215B, 219, 219D, 225, 225B, 225D, 227 and FB221 models. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The component is identified in the supplied part data as a cone and is listed under the bearing category. The applicable machine model must be checked against the equipment identification and the part number before installation, because the listed fitment covers specific Caterpillar machine models and series.

Fitment

• Caterpillar 215 excavator
• Caterpillar 215B excavator
• Caterpillar 219 excavator
• Caterpillar 219D excavator
• Caterpillar 225 excavator
• Caterpillar 225B excavator
• Caterpillar 225D excavator
• Caterpillar 227 forest machine
• Caterpillar FB221 forest machine

The listed application includes Caterpillar excavator models from the 215, 219 and 225 model groups, as well as the Caterpillar 227 and FB221 forest machine models. The part is intended for use where the equipment parts documentation specifies the 1B3993 or 1B-3993 bearing cone reference.

Cross-reference numbers

Number formats 1B3993 and 1B-3993 identify the same supplied part reference. The cross-reference information available for this item does not include additional supplier numbers or a separate bearing assembly number.

Specifications

The supplied dimensional data is recorded as length 11.8 cm, width 5 cm and depth 12 cm. These values describe the listed part dimensions and should be compared with the removed component and the service documentation for the specific Caterpillar machine. The supplied data does not specify material, bore, outside diameter, bearing angle, cage design, thread details or additional components included with the part.

Compatibility is listed for the Caterpillar 215, 215B, 219, 219D, 225, 225B, 225D, 227 and FB221 models only. Equipment identification, model designation and the installed part number should be verified before fitting the bearing cone.