3B5316 Cotter Pin for Caterpillar Equipment

3B5316 is a split cotter pin used with Caterpillar backhoe loaders, Challenger equipment, and Caterpillar engine-machine applications. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed as a steel split pin with a zinc-plated coating. The supplied specifications identify a beveled end type, miter point type, nominal diameter of 5/16 inch, and nominal length of 2 1/2 inches.

Fitment

The cotter pin is listed for the following Caterpillar equipment categories:

• Caterpillar backhoe loaders
• Caterpillar Challenger equipment
• Caterpillar engine-machine applications

Listed Caterpillar models and series include:

• Caterpillar 428
• Caterpillar VFS50
• Caterpillar VFS70
• Caterpillar 3306
• Caterpillar 3412
• Caterpillar 3412D
• Caterpillar 3412E
• Caterpillar 3508
• Caterpillar 3508B
• Caterpillar 3512

Fitment should be checked against the equipment model, serial-number range, and the dimensions of the installed pin before replacement. The model information above is the equipment application data provided for SKU 3B5316.

Cross-reference numbers

• 3B5316
• 3B-5316

These numbers identify the same cotter pin designation in the supplied product data.

Specifications

The inch measurements supplied for the pin are a 5/16-inch diameter and a 2.5-inch overall length. The metric length, width, and depth values are included as listed in the product data and may represent package or catalog dimensions rather than the pin's direct dimensional equivalents.