Grease Cover Dust Cap

Universal Replacement Trailer Hub Dust Cover, Trailer Axle Hub Cap.
Providing tight fit, long service life.
Made of high quality materials,ensure good durability.
Designed to proper fits & functions,keeps grease in and dirt out to protect bearings
1.9" OD dust cap for HK3, HK4 & HK8.
2.5" OD dust cap for HK12.
2.7" OD dust cap for HK78.