5K5887 Woodruff Key for Caterpillar Equipment

5K5887 is a Woodruff key used in Caterpillar equipment, including track loaders and track-type tractors. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by SKU 5K5887 and is listed for the Caterpillar equipment models shown below. The supplied product data identifies the part category and overall package dimensions but does not specify the exact shaft, hub, pulley, gear, or assembly position where the key is installed.

Fitment

• Manufacturer of equipment: Caterpillar
• Equipment type: Track loader
• Model: 941
• Equipment type: Track loader
• Model: 951B
• Equipment type: Track-type tractor
• Model: D4D
• Equipment type: Track-type tractor
• Model: D4E
• Equipment type: Track-type tractor
• Model: D4E SR

The listed application covers the Caterpillar 941 and 951B track loaders, as well as the Caterpillar D4D, D4E, and D4E SR track-type tractors. Model identification should be checked against the machine parts documentation before installation because the available data does not identify a serial-number range or a specific machine assembly.

Specifications

The dimensions and weight above are the values provided for this product listing. The available data does not provide the keyway width, key height, key radius, material grade, surface treatment, thread information, or a separate measured part drawing. These parameters are therefore not specified here.

The part data also does not include manufacturer cross-reference numbers from Caterpillar or other suppliers. No additional replacement or equivalent part numbers are listed.