Best Trailer Bearing Seals for 3500 Lb Axles and EZ-Lube Systems
If you’re shopping for boat trailer bearing seals, this guide helps you pick the right 1.719″ ID x 2.565″ OD double lip seals for #84 spindles used with 3500 lb axles. These seals keep grease in, dirt out, and extend wheel life. The top picks below cover common Dexter, Transcom, National, NOK, and GS-2250DL style seals, along with compatible cotter pins and related hardware. Ideal buyers include DIY trailer owners, boat trailers with EZ-Lube axles, and technicians replacing worn seals in mid-range trailers. A quick comparison table is provided to assist in choosing the best option for your setup.
| Product | Best For | Notes |
|---|---|---|
| Perfect Pairz 4pcs Trailer Axle Hub Wheel Grease Seals | Multiple repairs; durability-focused | Includes 4 seals and 4 cotter pins; replacement for common 10-19 84 spindle setups |
| iBroPrat 4pack ID 1.719″ x OD 2.565″ Seals | Cost-effective kit for frequent maintenance | 4 seals+4 cotter pins; Dexter 010-019-00 and 171255TB compatible |
| TiciKim 4Pcs Trailer Axle Hub Wheel Grease Seals | Single-axle wear replacement | Includes cotter pins; fits #84 spindles and common 10-19 references |
| DEEPDREAM 2 Sets Trailer Bearing Kit | Complete bearing kit value | Two sets; includes grease seals (171255TB) and related hardware |
| WPS Pack Of 4 Double Lip Seals 168255TB | High-volume replacement | Double lip rubber seal; works with 1-3/8″ axles and #84 spindle |
TiciKim 4Pcs Trailer Axle Hub Wheel Seals

Package includes four grease seals and four cotter pins designed for Dexter 010-019-00 (10-19), Transcom 171255TB, and National 473336 style hubs. Seals are sized ID 1.719″ and OD 2.565″, with cotter pins length 2.25″. Best for owners who want a ready-to-install set to replace worn seals in one go. The dual-lip design helps resist dirt intrusion and grease loss. A caution: verify the ID and OD match your existing seals before purchasing to ensure proper fit.
DEEPDREAM 2 Sets Trailer Bearing Kit

This kit provides two sets of bearing components for 3500 lb trailer axles, including L68149 and L44649 bearings and races, 171255TB grease seals (1.72″ ID x 2.56″ OD), spindle nuts, shaft washers, cotter pins, dust caps, and rubber plugs. It is best for buyers seeking a value-packed, multi-part replacement solution that covers both inner and outer bearings. A caveat: check compatibility with your exact bearing model numbers as listed in the kit to avoid mismatches.
Pack Of 2 Trailer Axle Bearings Kit L68149 L44649

Designed for 1-3/8″ to 1-1/16″ axles with 3500 lb ratings, this kit includes two inner bearings and two outer bearings plus grease seals (1.719″ ID x 2.565″ OD) and cotter pins. Best for do-it-yourselfers replacing worn bearings on mid-size trailers. Choose this if you need a compact, two-bearing solution with matching seals; avoid if your axle dimension differs from the stated range.
iBroPrat 4pack Seals With Cotter Pins

This set includes four seals and four cotter pins for 3,500 lb axles with #84 spindles. It suits owners who want a budget-friendly backup supply and quick replacement capability for Dexter 010-019-00, Transcom 171255TB, and related models. Limitation: ensure you don’t exceed the specific spindle compatibility; if your seals are a different ID/OD, another size may be required.
WPS Double Lip Trailer Axle Hub Seals (Pack Of 4)

These 1.68″ ID x 2.56″ OD double lip seals are compatible with 1-3/8″ axles and 3500-4200 lb trailers. They are a practical option for owners who want multiple seals in a single purchase, along with the robustness of rubber and steel construction. Best for frequent replacements; consider availability of the exact size for your spindle in your region.
WPS Pack Of 2 Seals For L68149/L68110

Compact two-seal pack designed for 3500-4200 lb trailer axles with L68149/L68110 bearings. The double lip design enhances sealing efficiency and provides reliability for daily trailer use. Choose this if you need a small, reliable replacement set; avoid if your seal dimensions differ from the listed 1.688″ ID and 2.332″ OD.
Buying Guide
- Seal dimensions matter: ID, OD, and width must match your existing seal. Re-measure before purchasing to avoid fit issues.
- Spindle compatibility: verify the seal is listed for #84 spindles and your axle rating (commonly 3500 lbs).
- Material and construction: double-lip rubber seals with steel backing perform better in dirty, wet conditions; look for NBR rubber for resistance to oil and weather.
- Included hardware: cotter pins and dust caps add value and simplify replacement; ensure the kit includes what you need.
- Quantity vs. cost: larger kits may reduce per-seal cost; balance your maintenance schedule with available storage space.
Frequently Asked Questions
- What size are the common boat trailer seals for 3500 lb axles?
Typical seals are ID 1.719″ and OD 2.565″ for 84 spindles, but always verify with your hub model. - Can I replace just the seal without removing the bearings?
Generally yes, but replacing bearings together is often recommended if you’re already disassembling the hub. - Are cotter pins included in most seal kits?
Many kits include cotter pins; if not, purchase them separately to ensure proper reassembly. - Is a double-lip seal better than a single-lip seal?
Double-lip seals offer improved dirt exclusion and oil retention, especially in wet or muddy conditions. - Do I need a complete bearing kit or just seals for maintenance?
For worn bearings, a full bearing kit provides new races and bearings; for seal-only wear, a seal kit may suffice.