If you’re shopping for boat trailer hub seals, you’re aiming to prevent leaks, keep bearings clean, and extend axle life. This guide highlights five reliable seals that fit common Dexter EZ Lube and #84 spindles and explains who each product is best for. Whether you’re a weekend boater or a commercial trailer operator, these options help you choose the right size, material, and lip design for lasting protection.
| Product | Brand | Key Fit | Notes |
|---|---|---|---|
| (Pack of 4) WPS Double Lip Trailer Axle Hub Seals | WPS | 3500/3750 lb trailers, 1 3/8″ spindles | Double lip design; steel construction |
| SUNCARACCL Trailer Hub Cap Rubber Plugs (4 Pack) | SUNCARACCL | 2000-3500 lb Dexter EZ Lube hubs | Dust plugs for hub protection |
| RV Murts 4 Double Lip Grease Seals | RV MURTS | 2000-2200 lb Dexters | Wide operating temp range |
| 4Pcs Trailer Axle Hub Wheel Grease Seals (4 Pcs) | TiciKim | 3500 lb #84 spindles | Double lip, fits several brands |
| RV MURTS 4pcs Trailer Axle Hub Wheel Seals | RV MURTS | 3500 lb #84 spindles | Double lip; cotter pins included |
(Pack of 4) WPS Double Lip Trailer Axle Hub Seals
The WPS set is designed for 3500 lb. and 3750 lb. trailer axles with #84 spindles. It uses a rubber, double lip design with steel construction to resist wear and maintain a tight seal. Best for boat trailers that frequently haul larger loads and require robust, long-lasting seals. Caution: verify compatibility with your exact spindle size before ordering.
SUNCARACCL 4 Pack Trailer Hub Cap Rubber Plugs
These rubber plugs are meant to seal dust caps and hub openings for 2000–3500 lb Dexter EZ Lube and standard axles. They’re best for boat trailers needing a quick, low-cost dust-cap protection solution. Choose this if you want easy installation and compatibility with common EZ Lube hubs. Limitation: ensure the 1.48″ diameter matches your cap hole before purchasing.
RV Murts 4 Double Lip Seals (ID 1.249″ x OD 1.983″)
Designed for 2000-2200 lb trailer axles, these double lip seals emphasize tight sealing and durability, with NBR rubber and mild steel construction. Best for small to mid-size boat trailers requiring reliable leakage protection and better temperature tolerance. Caution: ensure your axle’s inner diameter matches the 1.249″ ID to prevent leaks.
4Pcs Trailer Axle Hub Wheel Grease Seals
These seals fit most 3,500 lb hubs and #84 spindles, with a 1.719″ ID and 2.565″ OD. They come with cotter pins for quick replacement. Best for boat trailers that use Dexter 010-019-00 or Transcom 171255TB compatible parts. Limitation: always measure your seal’s ID/OD before buying to confirm fit.
GREPSPUD 20pcs Trailer Hub Rubber Grease Plugs
This value-pack includes 20 rubber grease plugs compatible with 1.17″ I.D. dust cap holes, suitable for EZ Lube caps on 2,000–3,500 lb trailers. Best for buyers who want abundant spares and a universal fit. Caution: verify hole size and compatibility before bulk purchase.
RV MURTS 4pcs Double Lip Seals with Cotter Pins
These 1.719″ ID x 2.565″ OD seals are paired with cotter pins for a straightforward replacement on 3500 lb #84 spindles. Best for trailers that need a ready-to-install kit with pins. Limitation: confirm that your spindle and cap dimensions match the listed size before purchase.
Buying Guide: Choosing The Right Boat Trailer Hub Seals
- Identify your spindle size and axle rating. Common boat trailers use 1.719″ ID for seals on 3,500 lb spindles or 1.67″–1.98″ dust-cap sizes for larger hubs. Align with your axle’s pounds (2k–3.5k) for best seal performance.
- Seal design matters. Double lip designs tend to provide better resistance to contamination and moisture than single-lip styles, especially in moist marine environments.
- Material choices. NBR rubber is common for its oil resistance and temperature tolerance. Ensure the seal’s steel backing or mild steel core offers adequate rigidity to maintain shape under heat and load.
- Durability vs. cost. Bulk packs save money, but verify fit to avoid premature replacements. Consider including cotter pins if the kit requires them for installation.
- Compatibility checks. Some products target Dexter EZ Lube or 84-spindle systems. Always compare dimensions (ID and OD) to your current seals before buying.
- Installation considerations. Some kits include pins and caps; others are seal-only. If in doubt, choose a kit with clear installation instructions or a compatible pin kit.
FAQ
- What size are boat trailer hub seals typically? Answer: Common sizes include 1.719″ ID x 2.565″ OD for 3,500 lb spindles and around 1.249″ ID x 1.983″ OD for mid-range setups.
- Why choose a double lip seal? Answer: Double lip seals offer improved protection against water, dust, and contaminants by providing two sealing edges and better resistance to pressure.
- Do I need cotter pins with these seals? Answer: Some kits include cotter pins; if not, you’ll need pins compatible with your hub to secure the seal and prevent movement.
- How do I confirm compatibility with my Dexter EZ Lube axle? Answer: Check the spindle size, hub type, and the ID/OD measurements of your current seals and compare to product specs.
- Can I mix brands on a single axle? Answer: It’s best to match seal dimensions and lip design. Inconsistent seals can lead to uneven sealing and potential leaks.
- What maintenance steps help extend seal life? Answer: Regularly inspect seals for cracks or wear, clean away salt and dirt, and replace seals showing signs of leakage or hardness.