Unitized Oil Seal
(35 reviews)
Price: $52.17
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Redline Trailer Bearings Races Seals Caps - 10-51
- Seals
- Oil Seals
- 3.880 Inch O.D.
- 2.875 Inch I.D.
- Redline
A unitized seal is a dual action seal. The inner part stays fixed on the spindle and the outer casing rotates with the hub. This type of seal has less wear and tear and provides better leak protection.
| 2.875 | 3.880 | Dexter 9K, 10K G.D. |
TCM OB2838051 is stamped on the air side of the seal.
Customer Reviews
Unitized Oil Seal - 10-51
Average Customer Rating: 4.8 out of 5 stars (35 Customer Reviews)
by: Tommy 09/15/2022
Quality products. I am happy with the p urchase
by: Jeremiah09/13/2021
Being on the trailer repair business I replace a lot of axle seals - and a n alarming amount of failed ones. It doesn't pay to go cheap. These hub oil seals by Redline seem to be good quality and hold up well.
by: David 08/11/2022
Work as it should.
by: Colin03/09/2022
These guys are great. Best service I have received. No reason to shop elsewhere.
by: Rachel03/12/2022
Customer service was great
by: Jeff Bonifield03/25/2017
Great product and fast service. I will be back I have other trailers and I have told several or maybe even many people about you. Thank you so much These were mostly bearings and seals for a heavy trailer so I don't have any pictures. Take my word for it though with them
by: Michael H.03/18/2013
Product was exactly what I needed to get back on the road. The picture zoom assured me that the part that I was getting matched to old one exactly. The product also arrived in a timely manner. To top it all off the customer service, attention, and follow up have been second to none.
by: Larry 07/22/2021
Good service and fast shipping!
by: B perry09/09/2017
Top quality products as well as service
by: Reid10/05/2016
It was the correct part, good fit, good quality. So far so good.
by: Derek Dennis06/02/2013
My old seals were discontinued, but they had the matching tables to the new ones which turned out to be a perfect match to the old. Did not have this luck at two other sites. Highly recommend this company as you get what you need the first time and you get it quick!
by: Mike Birdwell09/01/2016
Worked and fit just like described, good deal.
by: Hadley09/07/2022
by: Kevin 08/21/2022
by: Michael K01/28/2017
Great seal works great
by: Charles 12/11/2020
As expected, worked well
by: Larry12/21/2016
just what we expected
by: Gary 07/24/2022
by: Will07/14/2022
by: Ken 06/01/2021
Quality
by: Mike03/31/2022
by: Frank 07/26/2021
by: Randall 08/27/2022
by: tom05/24/2013
if you dont use these guys your missing out
by: Steve03/30/2017
Fast shipping and fit perfect
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See what our Experts say about this Redline Trailer Bearings Races Seals Caps
- Orientation Of Grease Seal On HubI have attached a photo of the inside of a hub you can check out. In the photo the arrow indicates how the seal is installed on the hub. As you can see the flat side of the seal is flush with the edge on the inside of the hub.
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- How To Determine The Right Replacement Grease SealIf you have the bearing numbers and the axle capacity, we may be able to find the right seal for your trailer. If not, you will need to take an accurate measurement of the outside diameter of your existing seal, or the inside diameter of the mounting surface for the seal in the hub. You will also need to get an accurate measurement of the spindle at the seal surface. I have attached a photo that shows the areas you will need to measure. You will need a precision instrument like a dial...
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- Replacement Oil Seal For Dexter 10,000 lb Hub From 2006 to Replace National 370150BGI'm not sure why they said those were your only options, but we do have the correct replacement oil seal for your Dexter 10k hub from 2006, and is the exact replacement for a National 370150BG: - Unitized Oil Seal # 10-51 The # 10-51 has an inner diameter of 2.875 inches and outer diameter of 3.880 inches; I verified with Dexter this is the correct part for your 10k hub.
view full answer... - Measuring for Correct Replacement Oil Seal for Oil Bath Type Trailer Hub on 2005 Ranger TrailerWe do carry a range of seals for oil bath type hubs like the ones from your 2005 Ranger trailer. I do not have access to all seal specs for Ranger trailers so you'll just want to take precise measurements of the current seal inner and outer diameters. Then you can use the linked page that displays all oil seals and select the matching dimensions. For example, a unitized seal like # 10-51 has an inner diameter of 2.875-inches and an outer diameter of 3.880-inches. This seal does have multiple...
view full answer... - RTV Sealant Recommendation for Oil Seal for Dexter AxlesThe Unitized Oil Seal # 10-51 would require that you apply RTV like part # LT37464 to the outer diameter of the seal before you install it per Dexter's seal installation instructions. This seal is designed as a replacement for Dexter 9K and 10K axles.
view full answer... - Determining Correct Oil Bath Seal For Dexter D100G 10000lb AxleThank you for the picture! I reached out to my contact at Dexter and your axle is indeed a 10000lb axle, but with the axles age they were unable to confirm the oil seal or bearings used. With that said your axle being a general duty 10000lb axle should use the Oil seal # 10-51, but could use # 10-56. To determine the correct seal you will want to use digital calipers like # PTW80157 to precisely measure the spindle where the seal rides as shown in the included diagram, and the diameter...
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- Recommended Replacement Oil Seal For A 2015 Big Tex 22GN TrailerFrom what I could find out, the Big Tex 22GN tandem axle trailers use 10,000 pound axles. However, this is the brand new ones so I highly recommend double checking this with Big Tex if you are unsure. They will need the VIN for your trailer, so have that near by. If they confirm this information or if you are already sure you have 10,000 pound axles, it does narrow the search down to 2 options. First is the # 10-51. This will have an inner diameter of 2.875" and an outer diameter of 3.880"....
view full answer... - Trailer Hub Bearings and Seal for 2000 Top Notch Trailer with Dexter 10k AxlesThe bearings you need are # 387A for the inner bearing, # 25580 for the outer bearing, and for the seal # 10-51 since we know you have 10k Dexter axles on your 2000 Top Notch trailer.
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- Replacement Oil Seal Needed for Older 9K Dexter AxleI spoke with my contact at Dexter Axle who said that your axle is rated for 9,000 lbs and uses the inner bearing # 387A, outer bearing # 25580, and seal # 10-51. This seal has an inner diameter of 2.875" and an outer diameter of 3.880". I would verify that this is compatible with your hub by using a digital caliper like part # 301-17068.
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- Recommended Electric Brake Magnet And Hub Components For Dexter 9000-Lb AxleThe Replacement Magnet Kit for your Dexter 12-1/4 inch brake assemblies is part # BP01-301. The kit includes the magnet, the spring, and the clip. For a Dexter 9K system manufactured after October 1989, the unitized seal you need is part # 10-51. If your axle was made before October 1989 the seal you need is part # 10-63. The Oil Cap Kit is part # RG04-270. This kit includes the cap, O-ring, and plug.
view full answer... - Replacement Bearings and Seal for Dexter 9,000 Pound AxleFor your Dexter 9,000 pound axle, you will need the Inner Bearing # 387A and Race # 382A, along with the Outer Bearing # 25580 and Race # 25520. The correct oil seal should be part # 10-51, which features a 2.875 inch inner diameter and 3.880 inch outer diameter. These bearings and seal are not available as a complete kit, so they will just need to be purchased individually.
view full answer... - How to Pick Out Bearing for 10,000 lb Dexter AxleWe have the bearing part # 387A which is over 2 inches in inner diameter and is seen on 10,000 lb axles but I'd have to know exactly what your spindle dimensions are to know for sure what you'd need. If you can use a digital caliper like the # PTW80157 to get me the exact dimension of the spindle where the bearings and seal ride I'll be able to let you know which parts you need. A very common bearing combo for Dexter 10k axles is # 387A and # 25580. Races needed are # 382A and # 25520....
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- Bearing, Races, and Cap for 10,000 lb Dexter AxleThe bearings you need are # 387A and # 25580. Races needed are # 382A and # 25520. The oil cap kit you need is part # RG04-300. If you need a seal too you would need the part # 10-51.
view full answer... - Replacement Bearings and Seals for Dexter Axle 10K Axle with Oil BathI can give you a few different options but to know the exact bearings, races, and seals you need for an oil bath on your 10K Dexter Axle you will need to take some measurements on your spindle using a digital caliper like part # 301-17068 or by finding the part numbers on these pieces. Attached is a photo to show you where the part numbers are located as well as where you will need to measure on your spindle. One set of common bearings/seals are inner bearing # 387A (2.250" inner diameter)...
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- Replacement Oil Seal and O-Ring for Dexter Drum Hub with Oil BathThe Dexter Trailer Hub and Drum Assembly - 9,000-lb to 10,000-lb - 8 on 6-1/2 - Oil Bath - Non-ABS Drum # 8-430-5UC3 does have replacement parts so you can absolutely purchase the seal and o-ring separately from the entire hub. The seal is the Unitized Oil Seal # 10-51 and the o-ring is # 92127. If you want the entire too the Replacement Oil Cap Kit for 9,000-lb and 10,000-lb Dexter Axle # RG04-300 consists of the cap, the plug, and the o-ring. If you need more oil, I recommend the Kodiak...
view full answer... - Replacement Bearings and Seal for Dexter 10k Trailer HubThe bearings you need are # 387A for the inner bearing, # 25580 for the outer bearing, and for the seal # 10-51 since we know you have a 10k Dexter axle. For brake assemblies you'd need the part # 23-450 for the left hand side and part # 23-451 for the right hand side. For a hub you'd need # 8-430-5UC3.
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- Recommended Brakes, Bearings and Seals for Dexter 10k General Duty AxleI reached out to Dexter and found that your axle is a 10,000 lb general duty axle. The correct inner bearing and race is the # 387A and # 382A, the correct outer bearing and race is the # 25580 and # 25520. For a replacement seal you want the # 10-51. For electric brakes I recommend the Dexter Electric Trailer Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 10K # 23-438-439. These are self-adjusting brakes so there will be no need for manual adjustment. I have attached...
view full answer... - Replacement Parts For Dexter 10,000LB Trailer Axle On 2019 PJ TrailerYour Dexter axle SN 125272197 came with the Dexter Electric Brake Kit # 23-450-451. It uses the following bearings and seals. Inner Bearing # 387A Outer Bearing # 25580 Inner Race # 382A Outer Race # 25520 Oil Seal # 10-51 Oil Cap # RG04-300
view full answer... - Bearings, Races and Oil Seals For Dexter 10K Axle On a 2018 Big Tex 22GN TrailerWhen you replace your Brakes # 23-450-451 it is a good idea to inspect the bearings at that time. The bearings and races will only need to be replaced if they are damaged or grooved. A visual inspection of the seal will tell you if it leaking or you notice any damage to the seal. Depending on if your Dexter 10K axle is a general duty or heavy duty will decide the bearings and oil seal you will need. If you are unsure you can send me the axle serial number that is stamped in the rear portion...
view full answer... - Is Dexter Hub Drum Assembly # 8-430-5UC3 Available in Individual Parts?The Dexter Trailer Hub Drum Assembly - 9K to 10K - 8 on 6.5 - Oil Bath - Non-ABS Drum - After July 2009 # 8-430-5UC3 comes as the complete kit and the hub/drum is not available separately. The bearings, races, seals, and caps are available separately: Inner Bearing # 387A Outer Bearing # 25580 Inner Race # 382A Outer Race # 25520 Oil Seal # 10-51 Oil Cap Kit # RG04-300
view full answer... - Replacement Brake Assemblies for Dexter 10k Axles on Gatormade TrailerWe have what you need! Thanks for the photos. Even though the serial number is torn from the axle tag, we still identified the brakes you need with the Unique ID Number 124394998016 from your 10k Dexter axle tag. I confirmed with my tech at Dexter that you need the Dexter Electric Trailer Brake Assembly - Self-Adjusting - 12-1/4" # 23-450 (left side) and the # 23-451 (right side). These are direct replacements of brakes constructed for your 10k Dexter axles on your Gatormade trailer.
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- Disc Brake Conversion Parts For 10,000 lb Dexter Axle Made Before 2009Thank you so much for that information, and we can get you everything you need to convert to a disc brake set up for your 10k Dexter axles. While there isn't a single kit, we do have all of the parts you need, and let's start with the brake kit itself: - Kodiak Disc Brakes - 11" Rotor - 8 on 6-1/2 - Raw Finish - Leaf Spring - 10K Dexter and Lippert # K2R1058D11 This kit is designed to fit your 10k Dexter axles from pre-2009, which is why the year is important, and has all the parts you...
view full answer... - Replacement Bearings and Brake Assemblies For 1998 Dexter 9000lb AxleThank you for the pictures and information of your axle! I called Dexter and your Dexter P12 SLR axle with Serial Number D-423-4057 has a 9000lb axle rating, and uses an 8 on 6-1/2 hub and drum assembly with 5/8" studs like you mentioned. For replacement bearings there is not a kit that has all of the bearings and races but you can purchase them all separately as follows: Inner Bearing # 387A Inner Race # 382A Outer Bearing # 25580 Outer Race # 25520 Oil Seal # 10-51 And Oil Cap Kit...
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- Recommended Complete Disc Brake Conversion System For 10,000 lb Dexter AxlesTo replace your leaking seals, you will want the Unitized Oil Seal # 10-51. This is a confirmed fit for your hubs. I've attached a video of an oil seal installation on a similar hub to help. For your disc brake conversion, you will need to use the Dexter Trailer Hub Assembly - 9,000-10,000-lb Axles - 8 on 6-1/2 - Oil Bath # 8-288-3UC1 and then the Kodiak Disc Brake Kit - 11" Rotor - 8 on 6-1/2 - Raw Finish - Leaf Spring - 10,000-lb Dexter # K2R1058D11E compatible with these hub assemblies...
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