1. Trailer Bearings Races Seals Caps
  2. Bearing Buddy
  3. Caps
  4. Bearing Protector Grease Cap
  5. 2.441 Inch
Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel (Pair)

Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel (Pair)

Item # BB2441T-SS
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Trailer Bearings Races Seals Caps
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Bearing Buddy Bearing Protector Grease Cap Trailer Bearings Races Seals Caps - BB2441T-SS
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Great for marine applications; the stainless steel construction provides the best in corrosion resistance. The design makes Bearing Buddy an easy way to protect your bearings by keeping water out and ensuring enough grease is in the hub. Lowest Prices for the best trailer bearings races seals caps from Bearing Buddy. Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel (Pair) part number BB2441T-SS can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (9)
  • Q & A (26)
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  • Why etrailer?

Bearing Buddy Trailer Bearings Races Seals Caps - BB2441T-SS

  • Caps
  • Bearing Protector Grease Cap
  • 2.441 Inch
  • Bearing Buddy

Great for marine applications; the stainless steel construction provides the best in corrosion resistance. The design makes Bearing Buddy an easy way to protect your bearings by keeping water out and ensuring enough grease is in the hub.


  • Replaces threaded grease cap in the axle hub
  • Prevents wheel-bearing failure
    • Keeps water and dirt out of hubs and bearings
    • Allows boat trailer wheels to be completely submerged
    • Stops corrosion and pitting on bearings
  • Provides easily accessible grease fitting
    • Makes adding grease to the bearings quick and simple
  • Maintains slight, controlled pressure (3 psi) with spring-loaded piston, preventing water from entering hub
  • Prevents overfilling and rear seal damage with automatic pressure-relief feature
    • Grease seeps around piston edges and into barrel when full
  • Constructed of stainless steel
    • Ensures longer-lasting fit than plastic or aluminum products
  • Includes rubber covers
  • Installs easily
  • Made in the USA


  • Fits 2.441" hub bore
    • Replaces Tie Down's Turbo Lube oil baths
    • Works with outer bearing models LM-67048 (hub counterbored), 15123 and others
    • Works with outer bearing cup (race) models LM-67010 and 15245
  • Bearing Buddy recommends using a grease proof gasket cement when installing
  • Lifetime warranty

Bearing Buddy installed diagram

Bearing Buddy Operation

Replace your existing grease cap with a Bearing Buddy to ensure a safe, easy way to monitor and control the level of grease in your axle hub. To adjust the amount of grease in the hub, use a grease gun to add more through the appropriate fitting. Adding grease moves the Bearing Buddy spring-loaded piston outward 1/8".

The O-ring inside the barrel of the Bearing Buddy maintains a seal from the outside. The interior of the Bearing Buddy is pressurized, preventing water from entering the barrel and diluting the grease.

An automatic pressure-relief feature is built into the Bearing Buddy. When the device is full, grease will seep around the edges of the piston and into the barrel. This prevents overfilling that can damage the inner seal.

You can manually check the grease level in your Bearing Buddy by pressing on the edge of the piston. If you can rock or move the piston, the hub is properly filled.

42418 Bearing Buddy Model 2441T-SS - Threaded - Stainless Steel (Pair)

Customer Reviews

Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel (Pair) - BB2441T-SS

Average Customer Rating:  4.8 out of 5 stars   (9 Customer Reviews)

Great for marine applications; the stainless steel construction provides the best in corrosion resistance. The design makes Bearing Buddy an easy way to protect your bearings by keeping water out and ensuring enough grease is in the hub.

- BB2441T-SS

These bearing buddy's are the perfect replacement for my turbo lube dust caps which they no longer make. I swapped from an oil bath to a grease lube system on my boat trailer and couldn't be happier. Thanks for your great service!

- BB2441T-SS

These also replace turbo lube 48399 covers, I put them on my 2009 z520 ranger, took all of 15 minutes to change out, perfect fit, easy installation , feel much better having these vs oil bath, highly recommend. Great buy, very happy!!

- BB2441T-SS

Did not fit threads on hubs. The threads on the hub were cast and poorly at that. So I never could get them to fit. Other than that I think they would have worked great.

- BB2441T-SS


- BB2441T-SS

If you own a trailer, this a must have! Don't ever risk repairing burnt out bearings along side the road with traffic whizzing by at 70mph, It only happened to me once!

- BB2441T-SS

Thanks for the fast shipping

- BB2441T-SS


- BB2441T-SS

- BB2441T-SS

worked as intended. Fast shipping.


Ask the Experts about this Bearing Buddy Trailer Bearings Races Seals Caps

  • Replacing Turbo Lube 48394 Oil Caps on Trailer
    We do not have your exact Turbo Lube Caps available but we do have the Bearing Buddy Bearing Protectors # BB2441T-SS that should work great as a replacement. These feature matching dimensions to your existing threaded caps and their stainless steel construction will ensure a long lifespan as they will be resistant to any rust or corrosion. I have attached a short video review on this product that you can check out as well.
    view full answer...
  • Can Oil Bath Hub Dust Cab Be Used with Grease Hubs
    There isn't a threaded bearing buddy that's going to fit the dimensions you have. You might just stick with the oil cap and pack the bearings with grease by hand.
    view full answer...
  • Bearing Buddy to Replace Tie Downs Turbo Lube Oil Bath 48394 Cap?
    Yes, Bearing Buddy # BB2441T-SS replaces Tie Down's Turbo Lube oil baths. I ran out to the warehouse and double checked that the outer dimension of the threaded portion matches the 2.33" of your Turbo Lube 48394 cap. You will want to remove the oil from the hub using shop towels and a mild detergent. Let them dry completely before packing them. Bearing Buddy also recommends using a High Performance Silicone Gasket Maker like Loctite's # LT37467 for the installation.
    view full answer...
  • How to Pick Out Threaded Bearing Buddy for Replacing Oil Bath Cap
    I wasn't able to find any reference to your oil cap or dimensions so what you'll need to do is measure the diameter of your cap so that we can determine if there's a threaded Bearing Buddy that would work. For example, we have the part # BB2080T-SS for if your hub bore is 2.08 inch in diameter, part # BB1980T-SS for 1.98 inch, or part # BB2441T-SS for a bore of 2.441 inch.
    view full answer...
  • What is the Outer Diameter and Thread Pitch of Bearing Buddies # BB2441T-SS
    I went out to the warehouse and pulled Bearing Buddies # BB2441T-SS. The outer diameter of the threaded portion is 2.34 inches using digital calipers to measure. The thread pitch is harder to determine. There are approximately 9 threads per inch (only three threads on the actual product) and it is coarse threaded as opposed to fine threaded. These Bearing Buddies are designed to replace Tie Down Turbo Lube oil baths.
    view full answer...
  • How To Convert From 2.441 Bub Bore Oil Bath Caps To Bearing Buddies
    Yes, the Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel part # BB2441T-SS will replace the oil bath caps on your oil bath hubs that leak. These bearing buddies fit a 2.441" hub bore so they will work well for you as long as the thread inside your hub bore is in good shape. You want to make sure you drain the oil as much as possible. Then remove the bearings from the hub, clean them and pack them with grease part # L11390. To grease the bearing buddies...
    view full answer...
  • What Causes Bearing Buddy Bearing Protectors Not To Thread In
    The Bearing Buddy Bearing Protectors like part # BB2441T-SS are very easy to install as they are just a threaded fastener essentially. Therefore, if you are having issues with the threads engaging first make sure that the diameter is correct. Once this is done you will want to inspect the threads on both the hub and bearing protector to ensure none are damaged. If the size is correct and none of the threads are damaged then odds are you just need to clean the threads on the hub more to...
    view full answer...
  • How to Remove a Threaded Bearing Buddy That is Stuck
    The vast majority of oil bath style hubs will indeed be threaded. These are also notorious for getting pretty stuck after a while. What you will need to do is spray some WD-40 all the way around it after being loosened as much as you can. Let that sit and then tighten, and back off. This may need to be done a few times to break up whatever it is that it is getting hung up on.
    view full answer...
  • Bearing Buddy Bearing Protectors To Replace Turbo Oil Bath Caps
    I recommend to measure the inside diameter of your hub bore to switch out the oil bath caps with threaded Bearing Buddy Bearing Protectors. The closest we have to the 3.3 inches that would thread into your oil bath hub is Bearing Buddy Bearing Protectors - Model 2441T-SS - Threaded - Stainless Steel part # BB2441T-SS which fit 2.441" hub bore inner diameters. These particular bearing buddies are designed for Turbo oil bath hubs like yours but you still want to measure your inner diameter...
    view full answer...
  • Is It Normal For Grease To Push Past The O-Ring On The Bearing Buddy Bearing Protectors?
    It is normal for grease to expand and can push out through the O-ring on the Bearing Buddy # BB2441T-SS. When you drive with the trailer, heat is created on the bearings as well as transferred into the hub from the brakes. As the parts heat up the steel and grease will expand. If your hub is packed full of grease it has to have somewhere to go so it pushes itself out through the O-ring.
    view full answer...
  • Replacement Bearing Caps for a Boat Trailer with 4.4K Axles
    For a boat trailer like yours, I recommend going with a Bearing Buddy that will keep the water out. With a gross vehicle weight rating of 8026 pounds, you probably have 4.4K axles. The appropriate Bearing Buddy will be part # BB2441SS. This will fit inner hub bores with inner diameters of 2.441", so be sure to measure yours to ensure it's correct. If, by chance, your hub bore is threaded, then use the Bearing Buddy with threading, part # BB2441T-SS. I've linked to video reviews...
    view full answer...
  • How to Determine Correct Bearing Buddy
    We may have something that will work, though to confirm the right Bearing Buddies you'll need to measure the hub bores on your trailer's hubs using your digital caliper, and match the hub bore diameter to the correct Bearing Buddies. For example, the Bearing Buddy Bearing Protectors - Model 2441 # BB2441 and Model 2441T-SS - Threaded (Stainless Steel) # BB2441T-SS fit a 2.441" hub bore and based on the measurements you gave these are pretty likely to fit your hub. I've added a link...
    view full answer...
  • Bearing Buddy Recommendation for Threaded Hub Bore
    Bearing Buddy does have options for thread hubs like what are seen on oil bath setups. We only have three options though: # BB1980T-SS for a 1.980 inch diameter # BB2441T-SS for a 2.441 inch diameter # BB2080T-SS for a 2.080 inch diameter
    view full answer...
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  • Is there a Trailer oil Bath Hub Oil Cap for a Dexter 6,000 Pound Axle
    The 21-36 oil cap, # RG04-270, fits 9K (after 10/1989) and 10K GD (2 piece drum), and 10K to 15K Dexter axles. The 21-35, # RG04-230, fits 6K to 8K ( and 9K before 10/1989) Dexter axles. It would be too large with its 2-7/8 inch thread diameter. All of these oil caps are for oil bath hubs. If you are replacing a dust cap, you probably have regular hubs. For bearing protectors measuring 2.441 inches, go with the stainless steel bearing Buddies, # BB2441SS, or, if the hub is threaded,...
    view full answer...
  • Bearing Buddy Bearing Protectors for 2.42-2.43 Inch Hub Bore
    Yes, based on the measurements you took of your hub bore diameter the correct Bearing Buddy Bearing Protectors is the part # BB2441 or # BB2441T-SS for the stainless steel model that will resist any corrosion. These are designed to fit hub bore diameters of 2.441 inches to allow for easy maintenance while also keeping dirt and water out of the hub. I have attached a short video review that you can check out as well.
    view full answer...
  • How to Pick out Bearing Buddies
    In order to pick out the correct bearing buddy you will need know the pilot hole of your hub. To do this, remove the wheel and tire and remove the grease cap from the center of the hub. Usually it is a metal cap that is just lightly hammered into place. Use a screwdriver to pry off the cap. Clean the grease off and measure the opening. I have included a video demonstrating the Bearing Buddy. The Bearing Buddies # BB2441 that you referenced are for hubs with a 2.441 inch hub bore. I...
    view full answer...
  • How to Convert Oil Bath Trailer Hubs to Grease Hubs
    Actually all you really have to do is remove the oil from the hub and then pack the hubs with grease and then get the correct bearing buddy to match the threaded hub bore. You will need to measure the inner diameter of where the old grease cap installed on your hub to pick out the correct bearing buddy. If that measurement is 1.98 then you would wan the # BB1980T-SS, if it's 2.080 inches and has 12 threads per inch then you'd need part # BB2080T-SS, if it's 2.44 inches you'd want the...
    view full answer...
  • Available Replacement Grease Seals and Grease Caps
    The best way to match up a new grease seal is to find the existing seal's part number and cross reference to a currently-available compatible part. When part numbers are not available measurements are needed, so thank you for those. Usually a grease seal's outer diameter should be only a few thousandths of an inch larger than the hub bore. For a grease seal to fit the 2.545-inch diameter of your hub's rear bore you would want one with a diameter in the range of 2.550-inches. We do have...
    view full answer...
  • Threaded Bearing Buddy for Mastercraft Prostar 190 Trailer
    The Bearing Buddy # BB2562 or # BB2562SS fits a 2.562 inch hub bore. There is not a threaded version of that size available. For threaded Bearing Buddies we have the following options: # BB2441T-SS which fits 2.441 inch hub bore # BB2080T-SS which fits 2.080 inch. # BB1980T-SS which fits 1.980 inch hub bore
    view full answer...
  • Grease Caps Available that Fit a 2.44 Diameter
    We do have a variety of grease caps that fit the 2.44 inch diameter that you reference; our selection has been linked for you to filter through. Among the options we have the non-threaded Bearing Buddy Bearing Protectors # BB2441, the threaded option # BB2441T-SS, as well as traditional grease caps for EZ Lube spindles # RG04-080, and non-EZ Lube spindles # RG04-060. Each of these part numbers come in a quantity of 2 and the prices can be found on the product pages. If you are talking...
    view full answer...
  • Bearing Buddy Bearing Protectors Needed for a 1965 Shasta Trailer
    The Bearing Buddies, # BB2047, are pressed into the hub for a tight fit. To determine the correct part for your trailer hub you will need to measure the diameter of the grease cap mating surface in the hub and match that as closely as possible to the measurements provided on the bearing buddy product pages, see link. If your grease caps are threaded, the Bearing Buddies, # BB1980T-SS, # BB2441T-SS or # BB2080T-SS, may be the correct size for your hubs, measuring to determine the correct...
    view full answer...
  • Wheel, Tire & Bearing Buddy for Trailer with 16-Inch Wheels & ST235-80R16 Tires
    The linked page displays all pre-mounted trailer wheel/tire products in your ST235-80R16 tire size and 8-on-6-1/2 wheel boot pattern. I also included linked to wheels only and tires only. We do offer Lions Head/Westlake products, both wheels and tires, including the Aluminum Jaguar Trailer Wheel # LHSJ513B. For a Bearing Buddy grease cap to fit your hubs you will need to measure the hub bore using a precision caliper like # PTW80157 and to note whether the bore is threaded or not. Then...
    view full answer...
  • Are the Bearing Buddy Bearing Protectors BB2441SS Threaded
    The Bearing Buddy Bearing Protectors # BB2441SS are not threaded. These are simply pushed into place. If you need this same size but that are threaded then the part number you're looking for is # BB2441T-SS instead. Same specs and still stainless steel, just with a threaded portion for the installation.
    view full answer...
  • Hubs, Bearings, and Rotors Part Numbers for FourWinns 2008 Trailer Model DO204KT
    In order to determine which size bearings, races, and grease seals you have, you will need to take apart your hub. The bearings and races will have numbers marked on them that you can cross-reference to determine which parts will work for replacements. If the numbers are worn off and impossible to read, you will need a high-precision caliper to measure the inner and outer diameters of your bearings and races because they have tight tolerances down to thousandths of an inch. You can determine...
    view full answer...
  • Available Sizes of Bearing Buddy Bearing Protectors
    We offer Bearing Buddy bearing protectors like the 1.98-inch ones # BB1980A-SS you referenced in many sizes to fit different hub bore dimensions. The range of sizes runs from 1.781-inches up to 2.717-inches. All of these are shown on the linked page. These include both threaded ones like # BB2441T-SS and non-threaded ones like # BB1980A-SS. Choosing the right ones for your hubs requires taking a precise measurement with a caliper like # PTW80157.
    view full answer...
  • Recommended Bearing Buddy Bearing Protectors for Montana Travel Trailer
    To determine which Bearing Buddies you'll need, use a digital caliper to measure the inside diameter of the hub bore, not the outside diameter of the grease cap. Given the 2.443 inch dimension you provided, it's extremely likely that you'd need the model 2441 Bearing Buddy which measures 2.441 inches in diameter. They're available in chrome as part # BB2441 or stainless as part # BB2441SS. If your hub bores are threaded, use part # BB2441T-SS. I'd still recommend you measure for confirmatio...
    view full answer...

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Hannah L
Updated by:
Hannah L

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