Lockwasher Handrails to Dash 3B4508

The 3B4508 lockwasher is a hardware component used in the handrail-to-dash fastening arrangement on Caterpillar asphalt pavers. It is identified by the Caterpillar equipment application and is listed for the machine models shown below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part number is also written as 3B-4508 in Caterpillar-style product descriptions. The component is supplied as a lockwasher for installation between the relevant fastener and the mating surface in the handrail-to-dash connection. The available product data identifies the application, interchangeable numbers, weight and overall dimensions.

Fitment

The 3B4508 lockwasher is used on the following Caterpillar asphalt paver models:

• AP-1000
• AP-1000B
• AP-1000D
• AP-1050
• AP-1050B
• AP-1055B
• AP-1055D
• AP-600D
• AP-650B
• AP-655C

Fitment is specified for the handrail-to-dash installation on the Caterpillar models listed above. The model designation should be checked against the machine parts documentation before installation when several versions of the same asphalt paver series are in service.

Cross-reference numbers

The following part numbers are listed as cross-reference or interchangeable numbers for this lockwasher:

When identifying the part, 3B4508 and 3B-4508 refer to the same listed Caterpillar number format. The other numbers in the table are supplied as interchange references associated with the same lockwasher application.

Specifications

The stated dimensions are 2.1 cm in length, 2.1 cm in width and 0.3 cm in depth. The listed weight is 0.1 lb. Material grade, thread information and the quantity supplied are not provided in the available product data and are therefore not specified here.