🔩 Bearing Buddy 2717A — 2-3/4" Bearing Protectors for Most 8-Lug Trailer Hubs | Pair with 23B Vinyl Covers

Bearing Buddy bearing protectors replace the factory grease cap on your trailer hub. A spring-loaded piston maintains constant 3 PSI positive pressure inside the hub — keeping water, road grime, and contaminants out while ensuring your bearings stay packed with grease. The blue Auto Check indicator ring provides a visual grease level check without removing the cap. When the blue ring protrudes, the hub is properly filled. When it recedes flush, it's time to add grease.

Genuine Bearing Buddy — the original bearing protector since 1958. Made in USA.

⚙️ Key Features

• Spring-Loaded Piston — 3 PSI Positive Pressure — Keeps water and contaminants out even when submerging trailer in water for boat launching
• Auto Check Blue Indicator Ring — Visual grease level check without removing cap; protrudes when full, recedes when low
• Chrome-Plated Exterior, Stainless Steel Internal Components — Corrosion-resistant construction for marine and outdoor environments
• Press-Fit Installation — Installs by hand-pressing or tapping into hub bore; replaces factory dust cap with no drilling or modification
• Grease Gun Compatible — Standard grease fitting accepts any grease gun for easy field lubrication without removing the wheel
• Prevents Bearing Failure — The #1 cause of trailer bearing failure is water intrusion; Bearing Buddy eliminates this risk
• Made in USA — Genuine Bearing Buddy, original design since 1958
• Sold in Pairs — One pair covers one axle (both hubs)
• Fits Most 8-Lug Hubs — 2-3/4" (2.717") bore is the standard for most 7,000–10,000 lb 8-lug trailer axle hubs
• Includes 23B Vinyl Bra Covers — Pair of 23B bras included to contain excess grease and protect wheels
• Compatible Bra: 23B (Mfg# 70023, AAA SKU 850-0323)
• Fits Dexter, Lippert, UFP, and most OEM 8-lug gooseneck and heavy-duty trailer hubs

📐 Specifications

• Brand: Bearing Buddy
• Model: 2717A
• MPN / Mfg#: 42717
• Hub Bore (O.D.): 2-3/4" (2.717")
• Includes: 2 Bearing Buddy protectors + 2 × 23B vinyl bra covers
• Compatible Bra: 23B (Mfg# 70023)
• Typical Axle Capacity: 7,000–10,000 lbs
• Finish: Chrome-plated exterior, stainless steel internal components
• Internal Pressure: 3 PSI spring-loaded piston
• Qty: Pair (2 protectors + 2 covers — covers one axle)
• Made in: USA

💡 Trailer Applications

• 8-lug gooseneck trailers — equipment, car haulers, flatbeds
• 8-lug dump trailers and heavy utility trailers
• 10,000 lb GVWR and above tandem axle trailers with 8-lug hubs
• Heavy-duty boat trailers for large vessels

🔁 Cross-Reference

• 42717 | 850-2717 | BB2717 | BB2717A | Mfg# 42717
• Compatible Bra: 23B (Mfg# 70023 / SKU 850-0323) — also fits 2328 and 2441

📞 Questions? Call or text: 517-225-1991 | AAATrailer.com — Howell, MI · Same-day shipping on most in-stock orders · Michigan's largest trailer parts selection

What sets us apart is our dedicated team of knowledgeable professionals who are always ready to assist. Great customer service isn't just a promise—it's the foundation of our success. We invite you to visit our showroom or reach out for personalized advice. Whether you're purchasing online or stopping by, we're here to make your trailer journey seamless. Visit Us Today

• Address: 4675 East Grand River Ave, Howell, MI 48843
• Phone: (517) 225-1991 (Call or text)
• Hours: Monday to Friday: 10:00 AM - 5:30 PM | Saturday: By appointment

Thank you for considering AAA Trailer. We're excited to help you hit the road with confidence! If you have any questions, don't hesitate to contact us.

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