How to Pick out the Correct Dust Cap Size for a Trailer
Updated 06/30/2025 | Published 06/18/2014
Question:
My 2014 Haul-Master 600 lb, boat trailer, item # 5002, came without dust caps. The Bearing Buddies at 2.047 in dia are just a bit too large to fit without doing a little machining. Ive also tried 2 in dia caps and theyre a bit too small. I need a source for the correct dust caps.
asked by: Gerald P
Expert Reply:
The Bearing Buddy part # BB2047 is supposed to be a snug fit. If a 2 inch diameter cap is too small the # BB2047 should be the right fit. But without knowing what the diameter of the hub bore its hard to say that definitively. I would recommend you use a micrometer to determine the bore and go from there.
I attached a page that has all of the grease caps we offer.
Product Page this Question was Asked From
Bearing Buddy Bearing Protectors - Model 2047 - Chrome Plated (Pair)
- Trailer Bearings Races Seals Caps
- Caps
- Bearing Protector Grease Cap
- 2.05 Inch
- 2000 lbs Axle
- Bearing Buddy
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: greystone microwave
- Search Results: bow rollers
- Search Results: bow stop
- Search Results: cotter pin
- Search Results: l68110
- Search Results: l68111
- Search Results: 2 1/8" dust cap
- Shop: Terran Industries 2" Trailer Hub Lube Style Dust Cap for 2K to 4.4K Axles - Qty 1
- Video: Review of Greystone RV Microwaves - Built In Stainless Steel RV Convection Microwave - GR27FR
- Shop: Replacement Black Trim Kit for Greystone Built-in Microwave
- Shop: Greystone Built-In RV Convection Microwave - 1.1 Cu Ft - Stainless Steel
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Shop: Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased
- Q&A: How to Measure a Trailer Hub or Dust Cap to Find the Right Replacement Dust Cap
- Q&A: Replacement for UFP HD1377 Trailer Hub/Drum
- Q&A: What is Difference Between Single and Double Lip Grease Seal
- Q&A: Solution for Replacement Seal for 171255UC Oil Seal
- Shop: Hub Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Shop: Bearing Buddy Bearing Protectors - Model 2047 - Chrome Plated (Pair)
- Shop: Timken Bearing Kit for Lippert, Dexter, and AL-KO Axles - 3,500 lb with #84 Spindle
- Q&A: Recommended Fenders w/ Built-In Steps for a Boat Trailer w/ 12" Wheels
- Q&A: Standard Color Code for Wiring Simple 4 Wire Trailer Lighting
- Q&A: Recommended Replacement For A UFP Model A-70 Brake Actuator
- Video: Review of Caliber Boat Trailer Parts - Rollers - CA62AJ
- Video: Review of Caliber Boat Trailer Parts - Rollers - CA42AJ
- Shop: Suspension Enhancement
- Video: An In-Depth Look at the CE Smith U-Bolt
- Video: Complete Breakdown of the Demco Channel Tongue Trailer Coupler
- Shop: Truck Topper
- Video: Review of etrailer Trailer Bearings Races Seals Caps - Hub Bearing Kit 3500LB Axle - BK2-100
Dan C.
6/30/2025
i have the exact same issue as this guy i measured the bearing buddy 2.055 and my hub with is 2.04 i even tried and no matter how i started the bearing buddy in the hole it would not go in at all.