Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Buyers Products · Hardware & Fasteners
KAN
In stock · ships from Knoxville
This is a Woodruff key—a half‑moon shaped metal piece that fits into a curved keyway on a shaft to lock a pulley, gear, or pump hub in place.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Not vehicle- or model-specific; fits any shaft keyway that matches the 1/4" thickness and 7/8" diameter dimensions.
Part data verified against 2 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It’s commonly used in heavy‑duty truck and equipment drivelines to drive shaft‑mounted accessories like hydraulic pumps, air compressors, and water pumps. You replace it when the key becomes worn or sheared, preventing the accessory from slipping on the shaft and causing loss of drive or component damage. The part is machined from carbon steel with a plain finish and measures 1/4 inch thick by 7/8 inch in diameter.
Part Number: KAN
KEY STOCK KAN
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more