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
- 2.047 Inch
- Bearing Buddy
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Bearing And Seal Kit Needed For A Dexter D60 Axle
- Shop: Timken Bearing Kit 15123/ 25580 Bearings, 15245/25520 Races, 412920 Seal
- Q&A: How to Measure a Trailer Hub or Dust Cap to Find the Right Replacement Dust Cap
- Search Results: 412920
- Search Results: gs 2250dl
- Search Results: ez lube spindle trailer spindles
- Shop: Grease Cap, 2.72" OD Drive In with Plug - Qty 2
- Video: Grease Cap, 2.72" OD Drive In with Plug Review
- Video: Timken Bearing Kit Installation - Enclosed Trailer
- Video: Hands-On with the 25 Ft 4-Way Trailer Wiring Harness
- Search Results: 168233
- Search Results: 23~468
- Search Results: brake drum
- Shop: Bearing Buddy Bearing Protectors - Model 2047 - Chrome Plated (Pair)
- Search Results: hub grease
- Shop: Replacement Trailer Hub Bearing - L44649
- Shop: Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 3,500 lbs
- Shop: Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Right Hand - 3,500 lbs
- Shop: Grease Seal
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Q&A: Recommended Grease Caps for 2.04 Inch Diameter Hub Bore on Trailer
- Q&A: Trailer Hub Dust Cap with a 2.125" Outside Diameter
- Q&A: Determining the Size of Grease Cap Needed for Axle
- Q&A: How to Pick Out the Correct Replacement Hubs and Brakes for a Vanguard Trailer
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.