This axle spindle is not recommended for use on boat trailers, as its 1045 steel construction is prone to rapid rusting when repeatedly exposed to water.
Ultra-Tow Trailer Axle Spindle, 1-3/4in. Square, 8in.L, Single

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
Shipping:
Free shipping (lower 48 states) - Available now
$19.99 Same DayStore Pickup:
4 in stock at Fredericksburg VA - Pickup in under 1 hr
- High-tensile strength steel axle
- Spindle is precisely machined
- Spindle must be properly welded to axle tube
- Includes castle nut, cotter pin and washer
See full description
Description
Key Specs
Reviews
Q & A
Warranty
Compare
Product Summary
What's Included
- (1) Ultra-Tow Trailer Axle Spindle (1) Castle nut (1) Cotter pin (1) Washer
Downloads
Features + Benefits
- High-tensile strength steel axle
- Spindle is precisely machined
- Spindle must be properly welded to axle tube
- Includes castle nut, cotter pin and washer
Key Specs
| Attribute | Specification |
|---|---|
item# | 5712455 |
Brand | Ultra-Tow |
Manufacturer's Warranty | 2 year limited warranty |
Ship Weight | 4.72 LB |
Rated Load | 1,750 lb |
Overall Length | 8 in |
| Attribute | Specification |
|---|---|
Spindle Shape | Square |
Spindle Diameter | 1-3/4 in |
Seal Size | 1.72 in |
Inner Bearing Size | 1.375 in |
Outer Bearing Size | 1.063 in |
Reviews
Questions & Answers
Questions
-
· 11 months ago
Will this work on boat trailers
1 answer-
UltraTowExpert12· 11 months ago
Helpful?
-
-
· 12 years ago
Need a new nut for one of these, what is the diameter and thread pitch required
1 answer-
UltraTowExpert11· 3 years ago
The replacement 1" castle nut is part number 777124. To order, please contact our sister company Jack's Small Engine at 877-737-2787.
Helpful?
-
-
· 15 years ago
What hub?
Will hub #572251 work with this spindle if not which ones will? Thanks
1 answer-
UltraTowExpert11· 3 years ago
The spindle will not work with the hub item number 572251. The hubs that will work with spindle are item numbers 572061 and 57206. Both of the hubs will have a 5 bolt on 4.5" bolt circle.
Helpful?
-
-
· 15 years ago
What's the length of the square part?
It would be really convenient if I knew how far on my axle could or couldn't be.
1 answer-
UltraTowExpert11· 3 years ago
The length of the square section of the spindle is 3 3/16".
Helpful?
-
Warranty
Manufacturer's Warranty
2 year limited warranty
Compare with Most Popular in Trailer Spindles
See All Trailer Spindles
See All Ultra-Tow Trailer Spindles
Currently Viewing This Product
$47.99Shipping:
Free shipping (lower 48 states) - Available now
$19.99 Same DayStore Pickup:
4 in stock at Fredericksburg VA - Pickup in under 1 hr
- $37.99
Shipping:
Available now
$19.99 Same DayStore Pickup:
4 in stock at Fredericksburg VA - Pickup in under 1 hr
Item # 5712451
$24.99Shipping:
Available now
$19.99 Same DayStore Pickup:
6 in stock at Fredericksburg VA - Pickup in under 1 hr
- $39.99
Shipping:
Available now
$19.99 Same DayStore Pickup:
4 in stock at Fredericksburg VA - Pickup in under 1 hr
Specifications
1,750 lb
1,350 lb
1,250 lb
1,250 lb
8 in
7 in
8.56 in
8 in
Square
Round
Round
Square
1-3/4 in
2 in
1-1/4 in
1 in
1.72 in
1.25 in
1.25 in
1.25 in
1.375 in
1.063 in
1 in
1 in
1.063 in
1.063 in
1 in
1 in
See All Trailer Spindles
See All Ultra-Tow Trailer Spindles
Recently Viewed Items
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.



