Spindle 1.75" RD x 4" STUB

Spindle 1.75" RD x 4" STUB

Item # R20484

lowest price pledge

Our Price: $45.32

Trailer Spindles

Orders above $50 qualify for Free Shipping

Shipping Weight: 5 lbs

Quantity: 
Redline Standard Spindle - R20484
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

Customer Photos

Videos

Lowest Prices for the best trailer spindles from Redline. Spindle 1.75" RD x 4" STUB part number R20484 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (24)
  • Q & A (28)
  • Videos (1)
  • Photos
  • Why etrailer?

Redline Trailer Spindles - R20484

  • For 3500 lb Axle
  • Standard Spindle
  • 1-3/4 Inch Diameter
  • Round
  • Redline
  • 4 Inch Long


  • Includes washer, castle nut and pin with the spindle

Part No. Capacity A B C D E F Round/Square
R20484 1750 lb 1.75 1.73 1.38 1.06 1.00 4.00 Round




Video of Spindle 1.75" RD x 4" STUB


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redline Trailer Spindles - Standard Spindle - R20484 Review


Customer Reviews

Spindle 1.75" RD x 4" STUB - R20484

Average Customer Rating:  4.9 out of 5 stars   (24 Customer Reviews)


- R20484
by:

Fast delivery and sales lady Shawn was great to work with. 345863



- R20484
by:

well I cant say much bad but I did get one out of four that was cut from a 2" stock instead of 1.75 like i ordered luckily I own a lathe and turned the 2" part down to 1.75 thanks though all worked great KC 464152


Comments

been working great so far no issues

Kim - 01/06/2019

48280

- R20484
by:

I bought this to make a tire carrier using a spare hub. It works as it should and was welded to some steel box tubing and then welded to my trailer. I paired it with a Dexter hub. 724580



- R20484
by:

Good product just want I wanted will buy from again. 586299



- R20484
by:

I ordered the stuff to rebuild my boat trailer. Everything showed up when promised, and was of very high quality. I am very pleased with etrailer's products and staff. I will be ordering again when the need arises. Thank you. 513286



- R20484
by:

It works great but it wasn’t the exact part that I needed but I made it work and trailer running great knock on wood 450952



- R20484
by:

Worked great , fast shipping and Great customer service !!! 406191



- R20484
by:

everything looks good ,have not put it together yet,but with previous experience with etrailer im sure it will go together fine. 377881



- R20484
by:

Very nice item at a great price. Customer service and shipping were spot on, actually received it quicker than estimated. 376723



- R20484
by:

Great product, it was a direct replacement for the factory part. 325967



- R20484
by:

Exactly what I needed. Fast shipper. 325865



- R20484
by:

No issues. Using them for axles on a 6x10 trailer that I converted to a fish house, used them to build "drop down" axles. Trailer has been through some rugged conditions, still performing well. 318333



- R20484
by:

Item as described and at a good price. 308665



- R20484
by:

Fast delivery Perfect for my custom t railer. 304414



- R20484
by:

Received order complete and on time. Will purchase from them again. 292348



- R20484
by:

Great website, good prices, good products and great service. Will buy from again. 291541



- R20484
by:

Great product great service fast ship t hanks 233969



- R20484
by:

I got everything in record time. All was in good shape. Building a tow dolly.. Your products are great and the free shipping makes it twice as good. dave H. 209455


Comments

My trailer is working great. Great products and excellent prices... Thanks

William D - 07/04/2016

19100

- R20484
by:

These work great with round or square tubing. The trailers I build always seem to have odd measurements and this makes it easy to make whatever size axle I want. 167771



- R20484
by:

Good prices. Fast shipping.Very good information on website making easy to select correct parts for you application. This is my go to website for trailer parts and information. Thanks! 160277



- R20484
by:

Order was shipped and delivered in a timely manner everything was good quality parts, haven't had time to install all of it, but what I have Is working out fine Thanks Etrailer, Thank you Renee 151816



- R20484
by:

Worked great for building a log arch. great quality. 125178



- R20484
by:

Excellent product; great quality; superb service from Zachary. Thank you, John 116836


Comments

Hi Jon,I have a boat trailer and the original axle is rated at 3500 lbs. Will this spindle work for me? It seems to mach the original but Im not sure about the load capcity.

-- comment by: Barry M - 07/30/2014

5978

The axle weight rating of 3500 pounds includes the capacity of each spindle at 1750 pounds. So as long as the other measurements on this spindle match your current set up, this will work just fine for you.

-- Rachael H - 8/1/2014

Comments

Perfect spindles for my 16 utility trailer. They are great! Thanks for thefollow-up, and stay warm.

John S - 03/05/2015

9871

- R20484
by:

Used new spindles with no problem at all. I ended up having to change spindles from old 4 star dexter rim set up. Anyone trying to order just hubs and brakes for old trailer should beware that a spindle upgrade my have to happen to. I had great tech help from etrailer.com guys on the correct parts for my old tag-a-along trailer and all parts went together great. 104507


25
25

Ask the Experts about this Redline Trailer Spindles

Do you have a question about this Trailer Spindle?


  • What Size of Spindle is Needed for a 3,500-Lb Axle
  • I have three spindles that are for a 3,500-lb axle and have the bearing dimensions you have listed. The only difference is the dimension for the grease seal is 1.75 inches, not the 1.795 inches that you have mentioned. Maybe you typed in the seal diameter wrong. The hub number you have mentioned is just a casting number, not a part number. The three spindles I have for a 3,500-lb axle are as follows. Redline Spindle 1.75 Inch Round x 4 inch Stub, part # R20484 Redline EZ Lube Spindle...
    view full answer...

  • Recommended Spindles for 1750 lb Axle
  • Given the measurements you provided, there are three spindles we offer for a 1750 lb axle. Part # R20484 4 Inch Long Stub Part # R20384EZ EZ Lube Spindle with 4-bolt Brake Flange Part # R2061-284 6.5 Inch Long Stub The bearing surfaces of each of the three are the same, with the difference being the overall length of the spindle. I would recommend using a digital caliper and comparing the bearing surfaces shown in the diagram on each product page to the existing spindle. All...
    view full answer...

  • How to Determine Hub and Spindle Size
  • The spindle dimensions are as follows: A is the mounting dimension, B is the seal dimension, C is the inner bearing surface, D is the outer bearing surface and E is the diameter of the threaded portion of the spindle for spindle nut selection. Say you need a spindle and hub for a wheel with 5 on 4-1/2 inch bolt pattern and an axle that is 3500 lbs. For a single axle trailer you can use two of either the item # R20484, if your axle is round or item # SP20484 if your axle is square....
    view full answer...

  • What Size Spindle do Bearings L68149 and L44649 fit on
  • Yes, you are going to want a spindle that has the 1.063" and 1.378" measurements. This is commonly known as a #84 spindle and can be found on our site with a few variances. For example, the Redline EZ Lube Spindle # R20384EZ comes with a brake mounting flange and a grease zerk fitting while the Redline Spindle # R20484 does not come with the flange or a zerk fitting. These fit the typical round applications but we also have one for a square application with part # SP20484. Any of...
    view full answer...

  • Spindles for a Trailer Hub Assembly for 3500 lb Axle
  • The following spindles will fit hub 84545BX 1. Spindle 1.5 SQ x 4 STUB, # SP20484, 1750 lb 2. Spindle 1.75 RD x 4 STUB, # R20484 3. Spindle 1.75 RD x 6.5 STUB, # R2061-284.
    view full answer...

  • Spindle Replacement Recommendation For Donahue Horse Trailer
  • In order to make sure you get the right components for your Donahue Horse Trailer, we will need some more information. If you are wanting to replace the spindle, the first thing you will need to know is the weight capacity and dimensions of the axle you plan on using the spindle on. Please keep in mind that installing the spindle require welding it to the axle by a certified welder. They use special jigs so that it is concentric and square on the axle or it can cause problems with uneven...
    view full answer...

  • Spindle and Idler Hub Assembly for 3500 lb Round Trailer Axle
  • The Trailer Idler Hub Assembly, # AKIHUB-655-35-K, with a 6 lug on 5-1/2 inch wheel bolt pattern will fit the Redline Spindle # R20484. These parts are compatible for use on a 3500 lb round trailer axle. When installing these parts, I recommend the LubiMatic Deluxe Bearing Packer, # L70025, along with LubriMatic LMX "Red" Industrial Strength Grease, # L11390. For a grease gun, I'd suggest # L30200.
    view full answer...

  • What are the Length Dimensions of the Steps on Spindle Part # R20484
  • I pulled one of these from the ware house and used a set of calipers to measure the portions you asked about. The total length of the spindle, part # R20484, is 8-3/4 inches. I used the labels assigned to the steps on the spindle on the product page. Section B is .61 inches, section C is .80 inches, the section between C and D is 1.30 inches, and section D is 1.00 inch in length and the threads are .93 inches long. Listed in the chart are the diameter sizes.
    view full answer...

  • Recommendation of Trailer Hub and Drums and Axles
  • The trailer hub and drum assembly # 845476UC3 includes bearings and races from Redline. They are made in China. I would assume you have 5 on 4-3/4 inch bolt pattern but you will need to replace the spindle. Welding on a new spindle is a precision trade craft requiring a special jig installed by an experienced professional. Otherwise, you could continue having the same problem. Depending if you currently have a round or square will determine which spindle you need. If it's round, you...
    view full answer...

  • Recommended Trailer Idler Hub for a Trailer with 84 Spindles
  • The threaded portion of the spindle isn't that important when picking out a replacement hub. That portion of the spindle is only for the castle nut, and since you have that already you would be fine. As long as the rest of the dimensions of your spindle match the # R20484 then the hub part # 84545BX would fit.
    view full answer...

  • Replacement Hub And Spindles For A 2018 Pace Journey Trailer
  • I do have a few hub and spindle replacement options for you to consider however, replacing the spindle on the axle will require you to cut the old spindle off and weld the new one on, in the exact angle it was installed. If not done so properly, the camber of the wheels will be off causing multiple other problems. Therefore, I recommend having a professional certified welding perform this task. In many cases it can be easier and more cost efficient to just replace the axle with a new...
    view full answer...

  • Troubleshooting Hub and Spindle Not Fitting Together after Replacing Spindle on a Utility Trailer
  • It sounds and looks to me like you have the wrong hub assembly for the spindle that is welded to the axle on your trailer. The photos you sent clearly show a 1-1/16 inch spindle similar to the EZ Lube Spindle 1.25 RD STUB - 1.06 inch Bearing ID, item # R104BTREZ. This is a spindle for a 2,000 pound axle. The parts that you referenced are for a 3,500 pound axle and definitely will not work on a spindle designed for a 2,000 pound axle. In addition, the photo of the hub that you sent looks...
    view full answer...

  • Spindle Recommendation for a Hub that Has Bearing Dimensions 1.06 and 1.38
  • The spindle we offer that has the closest dimensions to what you listed will be an 84 spindle like part # R20484. The surface of the spindle where the bearings will ride is 1.06 inch and 1.38 inch which is pretty close to what you have but not exact so you would want to double check the measurements you took. For a hub then with the bolt pattern 5 on 4-1/2 inch like you said you need you would want the part # 84545BX.
    view full answer...

  • Availability Of 5-5 1/2 Inch Hub Assembly, Spindle, Bearings Rated For 1,750 lbs. Each
  • I have the Dexter Trailer Hub Assembly - 3,500 lbs Axles - 5 on 5-1/2, # 84555UC1, which is rated at 1,750 lbs. each. The bearings, races, cap and seal included. The only other option I would have is the Dexter Trailer Hub & Drum Assembly - 3,500 lbs. Axles - 5 on 5-1/2, # 84557UC3, if you were wanting brakes. The capacity is 1,750 lbs. and comes with a 10 inch X 2-1/4 inch drum. It also comes with bearings, races, cap and seal. The spindles that are available for both hub assemblies...
    view full answer...

  • How Far Out will a Hub Face be on a #84 Trailer Spindle
  • I can tell you roughly where the hub face will be on a #84 spindle but I would have to use # R20384EZ as an example. On this spindle from the brake mounting flange to the hub face it will be approximately 3 to 3-1/2 inches. Since spindle # R20484 does not have a mounting flange you would be looking at the distance from about an 1 back from the line between the raw steel and the machined steel on the stub to the hub face. These are the best guesstimates I can provide without having...
    view full answer...

  • What Size are the Bearings in the Titan Disc Brake Kit # T4843200 and the Spindles That They Fit
  • The bearings that are included in the Titan Disc Brake Kit, part # T4843200, are the # L44649 for the outer bearing and the # L68149 for the inner bearing. The # L44649 outer bearing has an inside diameter of 1.063, which is 1-1/16 inches and the # L68149 inner bearing has an inside diameter of 1.378, which is 1-3/8 inches. These dimensions match the dimensions on your spindle. The Titan Disc Brake kit will work on tandem axle trailers with 3,500-lb axles and a wheel size of 14 inch...
    view full answer...

  • What Spindle Will Work for Trailer Hub Assembly with L68149 Inner and L44649 Outer Bearings
  • The Trailer Hub Assembly # 84550BX that you referenced will use # L68149 as the inner bearing and # L44649 as the outer bearing. These are the inner and outer bearings used by a # 84 spindle. We offer the following # 84 spindles: Spindle 1.75 Inch RD x 6.5 Inch STUB # R2061-284 EZ Lube Spindle 1.75 Inch RD x 3 Inch STUB # R20384EZ Spindle 1.75 Inch RD x 4 Inch STUB # R20484 Spindle 2 Inch x 4 Inch Round Stub # R40484 Spindle 1.5 Inch SQ x 4 Inch STUB # SP20484. Out of these...
    view full answer...

  • Compatibility of Disc Brake Kits for Idler Hubs on Boat Trailer
  • The Kodiak Disc Brake Kit # K2R35S is designed for 3500-lb-rated axles that have idler hubs and allows converting them from idler to disc brake operation. The bolt pattern determines whether they will fit on your idler hubs; and they will fit a #84 spindle like # R20484. This system would brake too aggressively if installed on a 2100-lb GAWR axle. Brakes should always be selected based on the axle weight rating; this is true for disc or drum brakes. Typically a 2100-lb axle will...
    view full answer...

  • Spindle Recommendation for the Titan 5 on 4-1/2 Complete Hub-and-Drum Assembly # T1544600042
  • Yes we do. The Titan 5 on 4-1/2 Complete Hub-and-Drum Assembly # T1544600042 that you referenced is designed to fit a number 84 spindle like the part # R20484.
    view full answer...

  • Spindles That Will Work With Dexter Trailer Hub Assembly # 84545UC1-EZ
  • We offer 3 spindles that have the dimensions compatible with the Dexter Trailer Hub Assembly, part # 84545UC1-EZ. The first is part # R20384EZ. This is a 1.75 inch round EZ-Lube spindle with brake flange. This spindle has a length of 9-1/4 inches including the grease zerk fitting. The next is part # R20484. This is a 1.75 round spindle that does not have the brake flange or grease zerk fitiing. The third is part # R40484. This is a 2 inch round spindle that does not have a grease...
    view full answer...

  • Recommended Spindles And Hubs For Trailer With 6 on 5-1/2 Inch Wheels
  • The sizes you gave line up with Timken bearings and races, however they are not compatible with standard size hubs and spindles. I recommend changing out your spindles for more long term options and compatibility. This will require a professional welder, but is a better long term option to have standard spindles. You may want to consider changing out your spindles for EZ Lube Spindle 1.75" RD x 3" STUB # R20384EZ or Spindle 1.75" RD x 4" STUB # R20484. This will give you spindles...
    view full answer...

  • Can Hydraulic Disc Brakes and an Actuator be Added to a Trailer that Does Not Have Brakes
  • The first thing you will need to check is whether or not your axle has a brake mounting flange welded to the axle. I have included a video below. At the 1 minute and 5 second mark, there is a good shot of what the brake mounting flange will most likely look like if the trailer has one. It will have 4 bolt holes spaced 2-7/8 inches apart on center. If your trailer does not have a brake mounting flange, you will have to have one welded on by a qualified welder at a shop that does work...
    view full answer...

  • Trailer Hub To Spindle Combinations for 2000 Pound or 3500 Pound Axle
  • The HUB KIT # 8-259-5UC1, uses a 1,000 pound spindle, item # R104BTREZ. This setup is for a 2,000 pound axle. The Spindle 1.75 inch RD x 4 inch STUB, item # R20484, is for a 3500 pound axle. If you need a hub and spindle for a 3,500 pound axle then you would use the # R20484 spindle and the Trailer Hub Assembly for 3,500 lbs Axles with 5 on 4-1/2 bolt pattern, item # 84545BX.
    view full answer...

  • What Spindle Does Trailer Hub # AKIHUB-655-35-K Fit
  • The trailer hub part # AKIHUB-655-35-K that you referenced is designed to fit a 84 spindle like the part # R20484.
    view full answer...

  • Which Trailer Spindles Fit Trailer Hub Assembly # 84555UC1
  • I have three options that will fit with Trailer Hub Assembly # 84555UC1. Part # R20484 is a 1-3/4-inch round spindle with a 4-inch stub. It has a weight capacity of 1,750 pounds. Part # R2061-284 is a 1-3/4-inch round spindle with 6-1/2-inch stub. It has a weight capacity of 1,750 pounds. Part # R20384EZ is a 1-3/4-inch round spindle with 3-inch stub with a grease zerk that allows you to pump grease internally into the spindle. It has a weight capacity of 1,750 pounds and contains...
    view full answer...

  • Recommended Idler Hubs and Electric Drum Hub and Brakes for Horse Trailer with 3,500lbs Axles
  • It sounds like you have a 3,500lb axles on your horse trailer from your measurements. For 5 on 4-1/2 bolt pattern idler hubs I recommend the # AKIHUB-545-35-K. For the 5 on 4-1/2 bolt pattern electric brake hub I recommend the # AKHD-545-35-K. For self adjusting 10 inch brakes that will work with the # AKHD-545-35-K hub you will want (right) # AKEBRK-35R-SA and for (left) # AKEBRK-35L-SA. I have linked the above mentioned products to this page for your convenience.
    view full answer...

  • Spindle Length Needed for Titan Disc Brake Kit
  • Thank you so much for the measurements. Your photo did not come through, however based on the 1/2" you gave for "F" the hubs on the Titan Disc Brake Kit # T4843100 won't work for you because as you mentioned, your spindle is not long enough. I am not certain which hubs you currently have but you will need a spindle such as # R20484 which has a 4" shaft length as opposed to the 1/2" you currently have in order to get the Disc Brake Kit to work. You can replace the spindles on your trailer,...
    view full answer...

  • Spindle and Hub that Fits Dexter Hub 8-248
  • We have the Dexter hub part # 8-248-50UC1 that you are looking for. Then for the correct spindle that fits this hub you'd want the part # R20484.
    view full answer...


Do you have a question about this Trailer Spindle?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality trailer spindles for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer spindle information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Jackie C
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.