1.99" Trailer Axle Solid Dust Grease Cap

Keep Your Bearings Protected. Keep Your Trailer Rolling.

The 1.99" Solid Dust Grease Cap is a must-have replacement part designed to protect your trailer hub bearings from dirt, water, and road debris. Built for durability and a tight interference fit, this cap ensures your hub stays sealed—extending bearing life and preventing costly failures.

Whether you're servicing a utility trailer, boat trailer, or cargo hauler, this dust cap delivers reliable protection and long-term performance.

⚙️ Key Features

✔ 1.99" Outer Diameter Fits most standard 2K–3.5K trailer hubs
✔ Solid (Non-EZ Lube) Ideal for standard grease-packed hubs
✔ Protects Bearings from Contamination Keeps grease clean and sealed
✔ Heavy-Duty Steel Construction Built to withstand road vibration and impact
✔ Drive-In Installation Secure press-fit design
✔ OEM Replacement Fit Matches common axle/hub specs

📏 Specifications

• Part Number:
• Outer Diameter: 1.99 inches
• Style: Solid dust cap (no rubber plug)
• Material: Stamped steel
• Finish: Zinc-coated (corrosion resistant)
• Fitment: Most 2,000 lb – 3,500 lb trailer hubs

🛠️ Applications

Perfect for:

• Utility trailers
• Enclosed cargo trailers
• Boat trailers
• Equipment trailers

👉 Works with standard hubs that use 1.98"–1.99" grease caps

🔩 Installation Notes

• Tap into place using a rubber mallet or cap driver
• Ensure a snug, even fit to avoid grease leakage
• Replace caps whenever servicing bearings for best results

⚠️ Important

• Not compatible with EZ Lube / Bearing Buddy style hubs
• Always verify cap diameter before ordering

💡 Why This Matters

A damaged or loose grease cap can:

• Let water and dirt into your hub
• Destroy bearings quickly
• Lead to wheel failure on the road

👉 This $10–$20 part prevents hundreds in repair costs

🔥 Bottom Line

The 1.99" Dust Cap is a simple but critical component that protects your trailer’s most important moving parts. If you're servicing hubs or replacing bearings, don’t skip this.

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.

To deliver your favorite products, we have partnered with the UPS & FEDEX . We are ready to entrust them with your orders and are always on your side if something goes wrong.

 We will be happy to assist you with eligible returns, the return instructions, and the shipping address. If you need a return or exchange, send us an email so we can discuss a replacement.