Choosing the right trailer bearings and seals is essential for safe, smooth towing and fewer roadside repairs. This guide highlights five seal-and-bearing kits that fit common 3500 lb trailer axles (1-3/16″ to 1-3/8″ spindles, #84) and are popular across American DIYers and hobbyists. The top picks are designed for easy installation, value for money, and durable materials. This overview helps buyers decide who each kit is best for and why. Below is a quick summary of the chosen products to compare at a glance.
| Product | Brand | Fit | what’s included |
|---|---|---|---|
| GREPSPUD 4Sets L44649 L68149 | GREPSPUD | 3500 lb axles, #84 spindle | Bearings, races, grease seals, cotter pins, dust caps, rubber plugs, spindle nuts |
| XiKe 3500 Lbs Kit | XiKe | 1-3/8″ to 1-1/16″ axles | Bearings, races, seals, cotter pins, dust caps |
| iBroPrat 4 Sets | iBroPrat | 3500 lb axles, #84 spindle | Bearings, races, grease seals, cotter pins, dust caps, spindle nuts, washers |
| Oacdiel 2 Pack | Oacdiel | 1-3/8″ to 1-1/16″ axles | Bearing pairs, seals, cotter pins, dust caps |
| KABOBEARING 2 Set | KABOBEARING | 1-16″ to 1-3/8″ axles | Bearings, seals, cotter pins, dust covers |
GREPSPUD 4Sets L44649 L68149 Kit
This kit fits 3500 lb trailer axles with spindle #84, EZ-Lube design. It includes 4 sets with 4 bearings (L68149) and 4 races (L68111), 4 bearings (L44649) and 4 races (L44610), 4 grease seals (171255TB, 1.719″ ID, 2.565″ OD), along with cotter pins, dust caps, and rubber plugs. The packaging is sturdy for protection during shipping. Best for owners doing multiple repairs or stocking spare parts for the long term. Caution: verify your spindle and seal sizes before purchase to avoid misfit.
Best for: users needing a comprehensive, multi-part kit with spare parts for future maintenance. Choose this if you want ready-to-use replacement parts without shopping separately.
XiKe 3500 Lbs Trailer Bearings Kit
XiKe emphasizes high performance with rotating quiet operation and high-speed chrome steel bearings. The kit is 100% dimensional-tolerance checked and claims complete compatibility for 1-3/8″ to 1-1/16″ trailer axles, including L68149/L68111 and L44649/L44610 bearings, plus the 171255TB seal, cotter pins, and two dust covers. Best for users prioritizing precise fit and reduced noise and vibration. Limitation: real-world performance depends on correct installation and bearing lubrication.
Best for: buyers who want a high-precision kit with attention to tolerance and noise. Choose this if quiet, smooth operation matters most.
iBroPrat 4 Sets 3500 Lb Kit
This luxury kit includes 4 sets (40 pieces total): 4 bearings (L68149), 4 races (L68111), 4 bearings (L44649), 4 races (L44610), 4 grease seals (171255TB), cotter pins, dust caps, spindle nuts, washers, and shims. It also provides extra dust caps and spindle nuts for convenience. Best for budget-conscious buyers who want a robust, all-in-one replacement set. Caution: ensure the included spindle nuts and washers match your trailer’s hardware for proper fit.
Best for: users wanting a comprehensive kit with extra hardware. Choose this if you want ready-to-install parts including nuts and washers.
Oacdiel 2 Pack Trailer Bearings Kit
Oacdiel offers a 2-pack with L68149/L68111 and L44649/L44610 bearings, along with 171255TB grease seals and two of each essential fasteners. The kit covers 3500 lb trailers from 1-1/16″ to 1-3/8″ axles. Best for small fleets or weekend warriors who want a solid backup kit. Limitation: the listing emphasizes ease of installation but does not detail warranty or long-term life data.
Best for: buyers who want a compact, value-focused option with spare parts ready for two hubs. Choose this if you prefer a smaller, economical kit for a single project.
KABOBEARING 2 Set
The two-set kit includes 4 bearings (L44649 and L44610), 2 sets of seals (12192TB OD 1.980″), two cotter pins, two dust covers, and chrome steel bearings. The ABEC-3 rating is noted for smoother operation. Best for those who want a compact, well-sealed kit with durable materials. Caution: confirm seal dimensions match your hub to avoid interference with wheel fitment.
Best for: buyers needing a compact set with solid seals and basic hardware. Choose this if you want a mid-range option with essential components.
Buying Guide
What should you consider when buying trailer bearings and seals? Start with axle and spindle compatibility. Look for kits labeled to fit 1-3/8″ to 1-1/16″ axles and spindle #84, as many singles use these specs. Consider the balance of bearings, races, and grease seals included, plus cotter pins, dust caps, and nuts. Durability matters: chrome steel bearings resist corrosion and wear. Packaging quality helps protect parts during shipping and storage.
Installation ease is a practical factor. Kits that include extra caps, nuts, washers, and shims save time and reduce the need for additional parts. For fleets or frequent maintenance, multi-set kits with spare seals and hardware can be cost-effective. If noise and vibration are a concern, prioritize kits advertised for high-precision tolerances and quiet operation.
Another perspective is value and breadth. Some kits are broad and include more hardware, while others are lean. Evaluate your typical trailer length, load, and axle type to select the best fit. Finally, verify the dimensions of grease seals (ID and OD) to ensure compatibility with your hub assembly.
FAQ
- What size bearings fit a 3500 lb trailer axles?
Most 3500 lb axles use bearings sized L68149/L68111 and L44649/L44610 with seals like 171255TB; confirm your spindle size is #84 and the axle measures 1-3/8″ to 1-1/16″ for proper fit.
- Should I buy a multi-set kit or single kit?
Multi-set kits are convenient for multiple hubs or future maintenance. If you only service one axle, a smaller kit may be sufficient and cheaper.
- Are grease seals included in these kits reliable?
Most kits include double-lip grease seals designed to be leak-resistant and durable. Always check the seal dimensions before installation.
- Do I need spindle nuts and washers with bearings?
Some kits include spindle nuts and washers; others do not. If missing, you may need to purchase them separately to ensure secure mounting.
- Is noise a concern with upgraded bearings?
Quality chrome steel bearings and proper lubrication can reduce noise; selecting a kit with tolerance checks can help maintain smooth operation.
- How do I verify fit before ordering?
Measure your hub bore, seal ID/OD, and spindle size. Compare with product specifications to avoid mismatches.