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Horse Trailer Dust Caps: Top 5 Options in Canada for 2025 — Maintenance-Proven Picks to Protect Your Investment

Published on Monday, August 25, 2025

Small protective caps that keep grease in and contaminants out of wheel bearings are an essential maintenance item for any horse trailer. Available in multiple bearing sizes and materials including stamped steel and plastic, dust caps range from simple stamped covers to greaseable systems that actively retain lubricant. Canadian owners favor durable, salt-resistant options and greaseable designs that simplify winter and long-haul maintenance, while fleet operators look for standardized sizes and aftermarket availability. Choosing the right cap balances fit, material performance, and the ability to service bearings without compromising protection — factors that determine longevity and reduce repair costs across Canada's varied climates.

Quick Menu

1. Best EZ-Lube Fit

2. Best OEM Replacement Fit

3. Best Dust Protection Cover

4. Best Value Replacement

5. Best Heavy-Duty Grease Cap

1
BEST EZ-LUBE FIT

Dexter EZ-Lube Dust Cap 1.98

Dexter

Dexter EZ-Lube Dust Cap 1.98 earns a best-in-class spot for horse trailer use because it directly supports EZ-lube spindles with a grease zerk access that simplifies scheduled lubrication and reduces downtime. Compared with the bulkier Bearing Buddy or the basic stamped caps from Reliable, it strikes a balance of durable construction, wide compatibility, and lower replacement cost for owners wanting straightforward, serviceable protection.

4.4
★★★★☆

  • EZ-lube ready

  • Weather tough

  • EZ-lube ready

  • Weather tough

Review Summary

88%

"Users report the Dexter EZ-Lube 1.98 cap fits tightly, seals well, and retains grease effectively; a few noted occasional paint flaking or tight tolerances on older hubs."

  • Snap-on charm

  • Designed for 1.98-inch EZ-lube hubs for a direct press-fit

  • Snap-on charm

  • Designed for 1.98-inch EZ-lube hubs for a direct press-fit

Time-Saving Convenience

Eco-Friendly Living

Recreational Enjoyment

Dexter EZ-Lube Dust Cap 1.98 earns a best-in-class spot for horse trailer use because it directly supports EZ-lube spindles with a grease zerk access that simplifies scheduled lubrication and reduces downtime. Compared with the bulkier Bearing Buddy or the basic stamped caps from Reliable, it strikes a balance of durable construction, wide compatibility, and lower replacement cost for owners wanting straightforward, serviceable protection.

  • EZ-lube ready

  • Weather tough

  • Snap-on charm

  • Designed for 1.98-inch EZ-lube hubs for a direct press-fit

  • Built with an access point to accommodate grease zerk fittings

  • EZ-lube ready

  • Weather tough

  • Snap-on charm

  • Designed for 1.98-inch EZ-lube hubs for a direct press-fit

  • Built with an access point to accommodate grease zerk fittings

Order Now

$8-18 CAD

2
BEST OEM REPLACEMENT FIT

Tie Down Engineering Dust Cap 81093

Tie Down Engineering
🏠 Local Product

Tie Down Engineering Dust Cap 81093 is a market-leading OEM-style cap noted for its precise fit and corrosion-resistant finish, which makes it a strong choice for long-term protection on horse trailers exposed to road salt and mud. While it typically costs more than generic caps, its heavier-duty materials and exact tolerances offer better seal longevity compared with economy options like Reliable and make it a good middle ground between basic caps and the higher-maintenance Bearing Buddy system.

4.3
★★★★☆

  • Heavy-duty hug

  • Corrosion-proof grin

  • Heavy-duty hug

  • Corrosion-proof grin

Review Summary

86%

"Owners praise the Tie Down Engineering 81093 for its heavy-duty construction and precise fit, with long-term users noting reliable sealing; a minority report fitment variations on non‑standard spindles."

  • Tool-less pop

  • Precision-engineered to match common OEM hub profiles

  • Tool-less pop

  • Precision-engineered to match common OEM hub profiles

Time-Saving Convenience

Eco-Friendly Living

Tie Down Engineering Dust Cap 81093 is a market-leading OEM-style cap noted for its precise fit and corrosion-resistant finish, which makes it a strong choice for long-term protection on horse trailers exposed to road salt and mud. While it typically costs more than generic caps, its heavier-duty materials and exact tolerances offer better seal longevity compared with economy options like Reliable and make it a good middle ground between basic caps and the higher-maintenance Bearing Buddy system.

  • Heavy-duty hug

  • Corrosion-proof grin

  • Tool-less pop

  • Precision-engineered to match common OEM hub profiles

  • Durable stamped steel with protective zinc/plated finish

  • Heavy-duty hug

  • Corrosion-proof grin

  • Tool-less pop

  • Precision-engineered to match common OEM hub profiles

  • Durable stamped steel with protective zinc/plated finish

Order Now

$10-25 CAD

3
BEST DUST PROTECTION COVER

Fulton Bearing Buddy Bra 19B

Fulton

Fulton Bearing Buddy Bra 19B stands out for its technical advantage as a pressurized-reservoir greasing solution that actively maintains grease pressure at the bearings, helping extend repack intervals and reduce heat-related wear on horse trailers doing frequent or long hauls. Although it is pricier and more specialized than simple dust caps such as Dexter or Reliable, its continuous-protection design can cut maintenance labor and bearing failures over time, making it cost-effective for heavy-use trailers.

4.5
★★★★☆

  • Bra-style fit

  • Vibration taming

  • Bra-style fit

  • Vibration taming

Review Summary

90%

"The Fulton Bearing Buddy Bra 19B is widely liked for keeping grease fittings clean and preventing water intrusion and is easy to install; some users report material wear after several years of sun exposure."

  • Grease-access wink

  • Durable synthetic cover that seals over the grease cap to block dirt and moisture

  • Grease-access wink

  • Durable synthetic cover that seals over the grease cap to block dirt and moisture

Time-Saving Convenience

Recreational Enjoyment

Fulton Bearing Buddy Bra 19B stands out for its technical advantage as a pressurized-reservoir greasing solution that actively maintains grease pressure at the bearings, helping extend repack intervals and reduce heat-related wear on horse trailers doing frequent or long hauls. Although it is pricier and more specialized than simple dust caps such as Dexter or Reliable, its continuous-protection design can cut maintenance labor and bearing failures over time, making it cost-effective for heavy-use trailers.

  • Bra-style fit

  • Vibration taming

  • Grease-access wink

  • Durable synthetic cover that seals over the grease cap to block dirt and moisture

  • Quick hook-and-loop style installation for an adjustable, snug fit

  • Bra-style fit

  • Vibration taming

  • Grease-access wink

  • Durable synthetic cover that seals over the grease cap to block dirt and moisture

  • Quick hook-and-loop style installation for an adjustable, snug fit

Order Now

$18-35 CAD

4
BEST VALUE REPLACEMENT

Reliable Trailer Parts RG04-070 Dust Cap

Reliable Trailer Parts

Reliable Trailer Parts RG04-070 Dust Cap is positioned as the value pick for horse trailer owners who need straightforward bearing protection at the lowest upfront cost, offering a no-frills stamped design that fits common hub sizes. It lacks the EZ-lube access of Dexter and the active protection of Fulton, but its affordability and broad availability make it ideal for fleet replacements or budget-conscious buyers who plan routine maintenance rather than long-term sealed protection.

4.1
★★★★☆

  • Precision seal

  • Salt-ready armor

  • Precision seal

  • Salt-ready armor

Review Summary

80%

"Buyers appreciate the Reliable Trailer Parts RG04-070 for its low price and acceptable fit, but several users warn the metal feels thin and the finish can chip over time."

  • Low-profile smirk

  • Cost-effective direct replacement sized for standard trailer hubs

  • Low-profile smirk

  • Cost-effective direct replacement sized for standard trailer hubs

Time-Saving Convenience

Eco-Friendly Living

Reliable Trailer Parts RG04-070 Dust Cap is positioned as the value pick for horse trailer owners who need straightforward bearing protection at the lowest upfront cost, offering a no-frills stamped design that fits common hub sizes. It lacks the EZ-lube access of Dexter and the active protection of Fulton, but its affordability and broad availability make it ideal for fleet replacements or budget-conscious buyers who plan routine maintenance rather than long-term sealed protection.

  • Precision seal

  • Salt-ready armor

  • Low-profile smirk

  • Cost-effective direct replacement sized for standard trailer hubs

  • Stamped steel body with rust-resistant plating for prolonged use

  • Precision seal

  • Salt-ready armor

  • Low-profile smirk

  • Cost-effective direct replacement sized for standard trailer hubs

  • Stamped steel body with rust-resistant plating for prolonged use

Order Now

$9-22 CAD

5
BEST HEAVY-DUTY GREASE CAP

Curt Manufacturing Grease Cap 22178

Curt Manufacturing

Curt Manufacturing Grease Cap 22178 is a dependable aftermarket choice that combines quality stamped steel construction with good fitment and an attractive price-performance ratio for horse trailers. It generally provides better durability and finish than the cheapest caps from Reliable while remaining less complex and less expensive than the Bearing Buddy option, making it a sensible upgrade for owners who want improved longevity without the premium cost of OEM heavy-duty caps.

4.3
★★★★☆

  • Press-fit speed

  • Stamped strength

  • Press-fit speed

  • Stamped strength

Review Summary

87%

"Reviewers find the Curt Manufacturing grease cap 22178 durable, easy to install, and a reliable seal for trailer hubs; a few mention minor fitment flex on older or non-standard hubs."

  • Maintenance wink

  • Made from heavy-gauge steel suited for rugged trailer applications

  • Maintenance wink

  • Made from heavy-gauge steel suited for rugged trailer applications

Time-Saving Convenience

Skill Development & Mastery

Curt Manufacturing Grease Cap 22178 is a dependable aftermarket choice that combines quality stamped steel construction with good fitment and an attractive price-performance ratio for horse trailers. It generally provides better durability and finish than the cheapest caps from Reliable while remaining less complex and less expensive than the Bearing Buddy option, making it a sensible upgrade for owners who want improved longevity without the premium cost of OEM heavy-duty caps.

  • Press-fit speed

  • Stamped strength

  • Maintenance wink

  • Made from heavy-gauge steel suited for rugged trailer applications

  • Precision fit helps retain grease and keep contaminants out

  • Press-fit speed

  • Stamped strength

  • Maintenance wink

  • Made from heavy-gauge steel suited for rugged trailer applications

  • Precision fit helps retain grease and keep contaminants out

Order Now

$12-30 CAD

Why Dust Caps Matter: Research and Industry Findings

Tribology and corrosion science consistently show that keeping contaminants out of bearings and maintaining an adequate lubricant film are key to reducing wear and preventing premature failure. Laboratory tests and industry field reports demonstrate that even small amounts of water, dirt, or road salt entering a bearing assembly accelerates corrosion and abrasion, shortening service life. Greaseable and sealed caps reduce recontamination during servicing and help maintain proper grease levels, which translates into fewer bearing failures and lower long-term maintenance costs.

Contamination control: Studies in tribology indicate that reducing particulate ingress greatly lowers abrasive wear rates in rolling element assemblies.

Corrosion reduction: Research on chloride-induced corrosion shows that exposure to road salts increases corrosion risk; robust caps and corrosion-resistant materials help mitigate this.

Lubrication retention: Controlled tests show that greaseable caps and well-sealed designs maintain lubricant presence longer, reducing metal-to-metal contact and heat build-up.

Material trade-offs: Stamped steel offers impact resistance and conductivity for heat dissipation; engineered plastics resist corrosion and can be lighter, but may be less impact tolerant in very cold climates.

Serviceability benefits: Greaseable systems, like bearing buddies and EZ-lube styles, make regular maintenance easier and encourage proper lubrication intervals.

Cost vs. lifespan: Preventive protection via appropriate dust caps typically lowers lifetime cost by reducing frequency of bearing replacement and emergency repairs.

In Canada, selecting the right dust cap depends on your trailer use, local road salt exposure, and maintenance habits. The five top choices covered here — Dexter EZ-Lube Dust Cap 1.98, Tie Down Engineering Dust Cap 81093, Fulton Bearing Buddy Bra 19B, Reliable Trailer Parts RG04-070 Dust Cap, and Curt Manufacturing Grease Cap 22178 — represent durable stamped steel, greaseable, and corrosion-conscious options for 2025. For general use and broad compatibility, the Dexter EZ-Lube Dust Cap 1.98 stands out as the best all-around choice for many Canadian horse owners, while the Fulton Bearing Buddy Bra 19B is ideal if you prefer a grease-preservation system. I hope you found what you were looking for; if you want to refine or expand your search by bearing size, material, or greaseable vs non-greaseable options, use the search to narrow results.

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