Specs:  

North American Trailer Dealers Association 2019 Product of the Year - https://valcrum.com/valcrum-wins-2019-product-of-the-year-at-natda/

This cap was created to solve the age-old trailer issue of constantly broken fragile plastic oil caps that:

• Cost you money replacing multiple caps year over year
• Cost you time & labor to stop, maintain, and replace broken caps
• Cost you a customer AND the job if your trailer breaks down due to leaking lubrication

Revolutionary Features:

• Magnetic vent plug that captures metallic particles & debris to preserves internal axle components and prevent bearing failure
• Heavy duty aluminum alloy body protects from exponentially more external damage to eliminate replacement frequency & decrease downtime
• Zerk fitting port allows for easy conversion of oil bath hubs to grease packed hubs

Fits:

• 9K-16K AL-KO/Hayes/QRG Axles
• 9K-16K Rockwell American Axles
• Replaces Dexter K71-859-00

W's Included:

• (1) 3 3/4" universal threaded hub cap
• (1) gasket
• (1) lens
• (1) retainer ring
• (1) foam gasket
• (6) Torx Screws
• (1) magnetic vent plug
• (1) 1/8 -27 NPTF plug included
• (1) O-Ring