Dexter Marine Products 81313 Trailer Bearing Grease Seal 1-3/4" for 1-3/8" Spindles 2-Pack

The Dexter Marine Products 81313 is a premium replacement grease seal designed specifically for boat and utility trailer wheel hubs with 1-3/8" inner diameter wheel bearings. These high-quality seals are essential maintenance components that protect your trailer bearings from water intrusion and contamination.

Key Specifications:

• Seal Size: 1-3/4" (1.719" inside diameter, 2.565" outside diameter)
• Fits: 1-3/8" I.D. inner wheel bearings
• Application: 3,500-4,200 lb capacity trailer hubs
• Construction: Triple-lipped, spring-loaded all-rubber seal design
• Industry Interchange Code: 171255UC
• Package: 2 seals per pack

Superior Protection:

The advanced triple-lip design with spring-loaded construction provides superior protection against dirt and water intrusion compared to standard single-lip seals. This enhanced sealing capability is critical for marine trailer applications where wheel bearings are regularly exposed to harsh saltwater environments and boat ramp submersion.

Maintenance Notes:

Grease seals should be inspected frequently and replaced if they show signs of wear such as excess grease buildup on the inside of the wheel hub or trailer rim. Properly functioning hub seals are your first line of defense against bearing failure, helping prevent water and dirt from entering the hub assembly. Regular seal replacement is an inexpensive insurance policy against costly bearing damage and roadside breakdowns.