Billet Aluminum Threaded Oil Bath Hub Caps — 2-7/8"-12 (Pair)

Part Number: 21-35-BILLET-KITX2

Pair of threaded oil bath hub cap kits machined from solid billet aluminum. These caps are designed to replace standard screw-in oil bath caps that use a 2-7/8"-12 external thread. Commonly used on oil-lubricated trailer hub and drum assemblies.

Features

• Threaded, screw-in oil bath hub caps
• Machined from solid billet aluminum
• Designed for oil-lubricated trailer hubs
• Each cap includes sealing components
• Kit quantity supports two hub positions

Specifications

Kit Contents

• 2 × Billet aluminum threaded oil bath hub caps (21-35 style)
• 2 × O-ring seals
• 2 × Rubber fill plugs

Commonly used on oil bath drums with casting numbers such as 8-219, 8-232, 8-285, and 8-286, and on some oil bath disc brake hub assemblies. This listing includes two complete cap kits, typically suitable for one axle. Verify thread size and hub type before installation.