WESTERNPRIME 4-Pack Trailer Bearing Kit for 3500 lb Tandem Axles — #84 Spindle, 10-19 Seals

WESTERNPRIME 4-pack trailer bearing kit supplies all inner and outer bearings, races, and reinforced 10-19 double-lip grease seals needed for standard 3500 lb tandem axles on #84 spindles.

This complete set bundles the most commonly replaced hub components for light-duty trailers so you can refresh four hubs at once. Included are inner bearings and races (L68149/L68111), outer bearings and races (L44649/L44610), and heavy-duty 10-19 grease seals (171255TB) with a reinforcing spring behind the lip. The parts are sized for a 1.719" inner diameter seal and designed to help retain lubricant while keeping out water and road debris.

What exactly comes in this 4-set kit and why does each part matter?

The kit contains matched bearing pairs and races for inner and outer positions and four double-lip grease seals. Bearings and races provide the rolling interface that supports the hub on the spindle; seals protect the bearings by keeping grease in and contaminants out.

• 4 inner bearing sets: L68149 with matching races L68111
• 4 outer bearing sets: L44649 with matching races L44610
• 4 double-lip grease seals: 10-19 (part 171255TB), 1.719" I.D., reinforced spring
• Fitment target: 3500 lb trailer tandem axles on #84 spindles

How do these 10-19 double-lip grease seals protect my trailer bearings?

The double-lip design creates two contact barriers that reduce grease loss and block dirt, water, and road grime. The built-in spring behind the lip maintains consistent pressure on the shaft, improving sealing over time and under vibration.

• Double-lip profile prevents contaminant ingress
• Reinforcing spring holds seal tight against spindle for consistent performance
• 1.719" inner diameter matches #84 spindle sizing for correct fit
• Helps extend bearing service life by preserving lubricant

Can I use this kit for both inner and outer bearing replacements?

Yes — the package includes both inner and outer bearing/race pairs so you can service each hub correctly. Replacing both bearings and races during a rebuild ensures even wear and accurate bearing preload.

• Inner bearings: L68149 paired with L68111 race
• Outer bearings: L44649 paired with L44610 race
• Replaces worn components for smoother rotation and reduced heat
• Good practice to replace seals at every rebuild

How do I know this kit fits my trailer axle and spindle?

Check the spindle designation (#84) and verify your hub uses a 1.719" I.D. seal. The bearing numbers (L68149 / L68111 for inner, L44649 / L44610 for outer) must match the parts called out in your trailer’s service information or the existing bearings and races.

• Match spindle type: #84 spindles typically use 10-19 seals
• Confirm existing bearing numbers on your hub or service manual
• Measure seal inner diameter (1.719") if uncertain
• Designed for 3500 lb axle capacity; check axle rating before installation

Who is this for? This WESTERNPRIME 4-set bearing kit is aimed at trailer owners, professional mechanics, and fleet managers who need a reliable, full-hub rebuild solution for light-duty tandem axles rated around 3500 pounds. It’s ideal for routine maintenance, bearing and seal replacements during axle servicing, or preparing trailers for long hauls and seasonal storage. If you’re refreshing all four hubs at once and need matched bearings, races, and reinforced seals built to industry sizing, this kit simplifies the parts list and helps ensure consistent fit across hubs.