1B4208 Nut for Caterpillar Equipment

1B4208 is a nut used in Caterpillar equipment, including Caterpillar engines, engine-machine applications, and motor graders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a Caterpillar equipment nut and is listed for use with the engine and machine models shown below. The reference information includes Caterpillar engine families, the Caterpillar C-9 and C7 engines, and the Caterpillar 120G motor grader.

Fitment

• Caterpillar 3116 engine and machine applications
• Caterpillar 3126 engine and machine applications
• Caterpillar 3126B engine and machine applications
• Caterpillar 3176C engine and machine applications
• Caterpillar 3304 engine and machine applications
• Caterpillar 3306 engine and machine applications
• Caterpillar 3412 engine and machine applications
• Caterpillar C-9 engine and machine applications
• Caterpillar C7 engine and machine applications
• Caterpillar 120G motor grader

Equipment category identified for this part: Caterpillar engine-machine and Caterpillar motor grader. Compatibility should be confirmed against the machine serial number and the part number installed on the equipment before replacement.

Cross-reference numbers

Part number 1B4208 is used as the primary identification for this nut. Number 1A5666 is listed as a known interchangeable reference. Verify the required application and dimensions when substituting between the listed numbers.

Specifications

The listed dimensions are 3.1 cm in length, 3.1 cm in width, and 1.9 cm in depth. The recorded weight is 0.2 lb. Thread size, pitch, material, finish, and the quantity supplied are not specified in the available part data.

Application summary

Use 1B4208 as the part-number reference when identifying the nut for the listed Caterpillar equipment. The fitment data covers Caterpillar 3116, 3126, 3126B, 3176C, 3304, 3306, 3412, C-9, and C7 engine applications, together with the Caterpillar 120G motor grader. The corresponding reference number 1A5666 may also be used for identification where applicable.