Finding the right trailer bearing kit for 1-3/8″ to 1-1/16″ axles is essential for a smooth, reliable tow. This guide focuses on kits designed for 3500 lb trailers, with a spindle #84. Each option below is evaluated for ease of installation, durability, and long-term performance. The top picks suit DIYers replacing worn bearings, fleet managers stocking spare parts, and boaters maintaining fishing or camping trailers. The following selections cover different pack sizes and brands to fit common 3500 lb axles while prioritizing quiet operation and leak-proof seals.
| Product | Fit | Kit Size | Spindle |
|---|---|---|---|
| Oacdiel 2 Pack | 1-3/8″ to 1-1/16″ | 2 bearings + seals | #84 |
| Lwlusup Pack of 2 | 1-3/8″ to 1-1/16″ | 2 inner + 2 outer bearings + races | 1.719″ ID / 1.063″ ID |
| DEEPDREAM 4 Sets | 1-3/8″ to 1-1/16″ | 4 sets with seals, caps, nuts | 1.719″ / 2.565″ OD seals |
| Misakomo 4 Sets | 3500 lb 1-1/16″ to 1-3/8″ | 4 bearings + 4 races + seals | EZ-Lube compatible |
| GREPSPUD 4Sets | 1-3/8″ to 1-1/16″ | 4 sets with caps, pins | 1.719″ I.D. / 2.565″ OD seals |
Oacdiel 2 Pack Trailer Bearings Kit
Best for quick replacements with minimal parts to manage. Features emphasize quick installation, durable materials, and quiet operation. This kit includes bearings and a double-lip grease seal for a clean, maintenance-free seal. Best for trailer owners who want a straightforward, reliable kit without extra components.
Who it’s best for: DIYers needing a compact kit for a 3500 lb axle and spindle #84. Why chosen: balance of essential parts, ease of install, and quiet performance. Caution: verify exact inner/outer race sizes to ensure a proper fit for your specific spindle.
Lwlusup 2-Pack Trailer Axle Bearings Kit
Better for owners who want a complete inner and outer bearing set with races included. This kit supports 1-3/8″ to 1-1/16″ axles with 3500 lb capacity and provides precise inner/outer dimensions (L68149/L68111 and L44649/L44610). The inclusion of both inner and outer bearings helps ensure proper fit and rotation, reducing maintenance frequency.
Who it’s best for: users looking for a full bearing set in a compact two-pack. Why chosen: comprehensive bearing/race pairing aids quick replacement. Caution: ensure your spindle length and race IDs match the kit’s specifications.
DEEPDREAM 4 Sets Trailer Bearing Kit
Best for multi-axle fleets or frequent trailer maintenance, offering a value-packed set with four complete assemblies and seals. This kit covers both sizes used on 1-3/8″ to 1-1/16″ axles, including 171255TB seals and dust caps to reduce contamination. The larger package size is ideal for maintenance cycles and spares stock.
Who it’s best for: fleet owners or frequent trailer owners who want spares. Why chosen: all-in-one option with substantial components. Caution: bulk packaging may require organized storage to prevent part mix-ups.
Misakomo 4 Sets Trailer Bearings Kit
Chosen for improved performance with low wear and low vibration, suitable for EZ-Lube axles. Includes bearings, races, grease seals, cotter pins, dust caps, and spindle nuts. This kit supports 1-3/8″ to 1-1/16″ axles and is designed to maintain proper rotation axis alignment.
Who it’s best for: users needing a robust, all-in-one kit with EZ-Lube compatibility. Why chosen: strong balance between durability and complete hardware set. Caution: confirm exact race sizes to avoid mismatched components.
GREPSPUD 4Sets Trailer Bearing Kit
Best value-per-part for a single purchase, featuring four complete sets with grease seals and dust caps. The kit is designed for 1-3/8″ to 1-1/16″ axles and spindle #84, with sturdy packaging to protect parts during transport. Provides a practical option for multiple trailer repairs and long-term spare parts readiness.
Who it’s best for: buyers seeking a comprehensive, multi-set solution with reliable seal options. Why chosen: bundled parts minimize additional purchases. Caution: check that the gasket and seal sizes match your axle’s exact diameter and spindle type.
Buying Guide
What should I look for in a trailer bearing kit?
Key factors include axle compatibility (1-3/8″ to 1-1/16″ and 3500 lb capacity), spindle size (#84), included seals, dust caps, and cotter pins. Kits that include inner and outer bearings with corresponding races simplify installation and reduce mismatch risks.
How important are seals and dust caps?
Seals prevent grease leakage and water intrusion, extending bearing life. Dust caps protect bearings during storage and transport. Look for double-lip seals for better leak resistance and seals sized to the correct inner diameter for your bearings.
EZ-Lube compatibility: should I care?
EZ-Lube axles simplify lubrication by allowing grease to be added via a zerk fitting. If your trailer uses EZ-Lube, confirm that the kit provides compatible seals and grease components for easy maintenance without disassembly.
How many sets should I buy?
For single-axle trailers with occasional maintenance, a 2–4 set kit is usually sufficient for spares and replacements. Fleets or frequent travelers may prefer 4-set or larger bundles to cover multiple repairs and spare parts.
What about fit and sizes?
Most kits target 3500 lb axles with 1-3/8″ to 1-1/16″ bearings and spindle #84. Double-check the inner/outer race IDs and grease seal IDs (typically around 1.719″ I.D. and 2.565″ O.D or similar) to ensure accurate fit for your trailer.
Which kit is best for my use case?
If you want a compact option with essential parts and quick install, choose the Oacdiel kit. For complete sets with more hardware and spare seals, consider DEEPDREAM or GREPSPUD. Fleet managers prioritizing value and bulk parts may prefer Misakomo or GREPSPUD 4Sets. Always match to your axle measurements and spindle design.
FAQ
- Q: Do these kits fit 3500 lb axles only?
A: Yes, all listed kits target 1-3/8″ to 1-1/16″ axles with 3500 lb capacity and spindle #84 where specified. - Q: Must I replace all bearings at once?
A: Replacing both inner and outer bearings together ensures balanced wear and consistent performance. - Q: What indicates a seal is not sealing properly?
A: Visible grease leakage, abnormal wobble, or unusual heat during operation can indicate a seal issue. - Q: Are there any warranty requirements for these kits?
A: Warranty details are not provided here; check the product listing and seller terms on Amazon for coverage. - Q: Can I reuse old races with new bearings?
A: It’s generally recommended to install new races with new bearings to ensure a proper fit and longevity. - Q: How do I know if I have EZ-Lube axles?
A: Check your trailer manual or inspect the grease fitting; EZ-Lube axles include a grease zerk fitting accessible for lubrication.