Dutton-Lainson Company

A Dependable Company Since 1886

6331 Grease Keeper Caps | 3/4 in.

Part Number 21841
Price: $19.99
Manufactured in the USA
  • Grease Keeper® 3/4" wheel bearing protectors
  • Zinc plated steel dust caps with grease zirk and pressure relief valve
  • Protects wheel bearings from water and dirt with a positive hub seal
  • Supplies a reserve of lubrication and has built-in positive relief
  • Longer time between periodic repacking of bearings
  • Protects and extends bearing life
  • Zirk permits frequent greasing and relief valve eliminates excess pressure on grease seal
  • No complicated moving parts or gaskets that require costly maintenance and replacements
  • Easily installed in seconds- no need to remove hubs
  • A positive hub seal minimizes water entry when wheels are submerged
  • Includes two protectors and two vinyl dust covers
  • Made in the U.S.A.


1601 W. 2nd Street
Hastings, NE 68901