3-inch dust caps cover 3t Alko hubs, disc rotors and 12" electric drum brakes. Dust caps should be empty when installed and filled with catching excess grease once on the highway. It is common for folks to call dust caps, grease or oil caps. Dust caps catch excess grease. However, the standard procedure for service mechanics to load up the dust cap with grease is not a good practice. The overloaded bearing cavity and dust cap will eventually expel excess bearing grease out the rear grease seal. Dust caps perform two functions: •Keep Dust out •Catch excess bearing grease
SKU GRSCAP3
Brand Couplemate
Unit Of Measure Each
Diameter 76.6mm

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