Stemco 359-6124 Sentinel ESP Hub Cap Plug - 2 Pack

The Stemco 359-6124 Sentinel ESP (Extended Service Plug) features an enhanced dual O-ring design that provides superior contamination resistance and improved retention performance. This vented hub cap plug is designed to protect commercial truck and trailer wheel ends from dirt, debris, moisture, and contaminants that can compromise lubrication and bearing life.

Key Features:

• Dual O-ring design for increased plug retention
• Umbrella check valve remains closed to stop lubricant from leaking out and prevent contaminants from flowing in
• Protective shield guards venting mechanism during oil filling and normal vehicle operation
• Water-resistant construction
• Fits all Stemco hub caps with 1-1/8 inch plug opening
• Sold as blister pack containing 2 plugs

The Sentinel ESP allows economical retrofitting of wheel ends with the benefits of Stemco's exclusive Sentinel filtration technology. Sentinel Technology provides an unmatched filtering system to eliminate contamination of lubricant from grime, dirt, or water. Ideal for fleet maintenance applications on trailers, steer axles, and drive axles.

Compatible with Stemco part number 350-4119 and other Stemco hub cap systems requiring 1-1/8 inch plugs. Manufactured by Stemco in Longview, TX.