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U-Bolt Plate for 5" Diameter, Round Trailer Axles with 3" Wide Springs
etrailer Installation
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Redline

U-Bolt Plate for 5" Diameter, Round Trailer Axles with 3" Wide Springs

Part Number: 12-46
In Stock
$36.43
Trailer Suspension Parts
12-46 - Camper,Car Hauler,Utility Trailer Redline Trailer Suspension Parts
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Plate uses 3/4" diameter U-bolts to attach your round, 5" diameter trailer axle to your 3" wide leaf springs. Designed for use with 12,000-lb to 15,000-lb Dexter axles. Great Prices for the best trailer suspension parts from Redline. U-Bolt Plate for 5" Diameter, Round Trailer Axles with 3" Wide Springs part number 12-46 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (49)
  • Q & A (0)
  • Videos (1)
  • Photos

Redline Trailer Suspension Parts - 12-46

Highlights

  • Fits 5" Round Axles: Matches heavy-duty 12,000-lb to 15,000-lb Dexter axle setups.
  • Works with 3" Wide Springs: Keeps suspension aligned for solid trailer tracking.
  • Uses 3/4" U-Bolts: Secures axle tightly to springs for a stable load connection.
  • 9" x 6" x 1" Plate Size: Provides a broad, rigid base for strong axle clamping.
  • Steel Construction: Handles the stress of high-capacity hauling and rough roads.
  • Mounting Hardware Sold Separately: Pair with (2) 3/4" round U-bolts for install.

Features to know about

Solid Mount for Heavy Axles: Built for 12,000-lb to 15,000-lb Loads

Big trailers need parts that don’t flex or twist under pressure. This U-bolt plate is made for serious weight, fitting 12,000-lb to 15,000-lb Dexter axles. It uses 3/4" diameter U-bolts (sold separately) to clamp the axle tight to 3" wide leaf springs so everything stays securely in line mile after mile.

Dependable Fit Every Time: Made for 5" Round Axles and 3" Wide Springs

Getting the right fit matters when you’re tightening down your suspension. This plate is made specifically for round axles with a 5" diameter and pairs perfectly with 3" wide leaf springs. The geometry is spot-on so the U-bolts seat squarely and hold firm without distortion or uneven pressure.

Heavy-Duty Construction for Long Service Life: 9" x 6" x 1" Plate

Built with strength in mind, the plate measures 9" long, 6" wide, and 1" thick. That kind of size and thickness gives your suspension a rigid mounting surface that won’t bend or warp under load. It’s the kind of hardware you install once and trust to stay put through years of hard use.

Simple Setup for Strong Results: Uses 3/4" Diameter Mounting Hardware

This plate is designed to work with (2) 3/4" diameter round U-bolts (not included). The straightforward layout makes it easy to bolt everything together securely so your axle and springs act as one solid unit. It’s a clean, no-nonsense solution that keeps your suspension tight and reliable.

Specs

Dimensions

  • Length: 9"
  • Width: 6"
  • Thickness: 1"

Dimensional diagram of Redline U-bolt plate for 5-inch diameter round trailer axles showing measurements for bolt spacing and plate size.

Compatibility

  • Axle Type: Round trailer axle
  • Axle Diameter: 5"
  • Spring Width: 3"
  • Axle Capacity: 12,000 lbs to 15,000 lbs Dexter axles

Hardware

  • U-Bolt Diameter: 3/4"
  • Mounting Hardware: Not included
  • U-Bolts: (2) 3/4" diameter, round U-bolts (sold separately)

12-46 U-Bolt Round Axle Plate - 3" Springs - 5" Diameter Axle





Video of U-Bolt Plate for 5" Diameter, Round Trailer Axles with 3" Wide Springs
Video Thumbnail Video Player Dialog

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




Video Transcript for In-Depth Review of the U-Bolt Plate for 5" Diameter, Round Trailer Axles with 3" Wide Springs

Speaker 1: Today we're taking a look at a U-bolt plate for five inch diameter round trailer axles with three inch wide springs. This is used with U-bolts to secure an axle to lee springs, which are mounted to the trailer frame. This unit's made from a durable steel construction that attaches with two 3/4 inch diameter around U-bolts, which are sold separately. They're available at etrailer.com. When it comes to the dimensions of this U-bolt plate, edge to edge going this direction, we're looking at about nine inches. Edge to edge this direction is about six inches.

Top to bottom measures about one inch. Now this is designed to fit round trailer axles with a five inch diameter. We can tell that by taking a measurement from the closest point of one hole to the closest point of the other going straight across. So we can see that that space right there measures about five inches, so that's the five inch diameter axle. And then side to side this way we can see that it works with three inch wide lee springs, again, closest edge of one hole to the closest edge of the other, that's three inches right there.

Now this fits round trailer axles with a five inch diameter and it is designed for use with 12000 pound to 15000 pound Dexter axles.That's gonna do it for today's look at the U-bolt plate for five inch diameter round trailer axles with three inch wide springs.

Customer Satisfaction Score:

Ratings & Reviews

4.9

49 reviews
Review sort icon
Plate uses 3/4" diameter U-bolts to attach your round, 5" diameter trailer axle to your 3" wide leaf springs. Designed for use with 12,000-lb to 15,000-lb Dexter axles.

by:

Item came quicker than expected, great quality.



by:

Easy install. Holding up well in salt water.



by:

Great product, very good price, quick ship…Rose was very helpful, I was ordering the wrong things and she helped me get it just right. Thank you



by:

Customer service and product excellent.



by:

Seems sturdy, still working nice on my vintage trailer.



by:

Fast shipping, excellent customer service



by:

Excellant product quality and communicatiion. Fast shipping. I have made several orders from ETrailer and all have been great.



by:

Easy to find online. Quick shipping, Perfect fit, Will do business again



by:

Product arrived quickly and accurately content wise. The hangers are going to be tight fit on 1 3/4 wide springs (weld on and spread a little).
I immediately ordered from etrailer again as I only ordered 2 u bolts rather than the 4 necessary.



by:

THANKS ETRAILER FOR YOUR ONLINE PRODUCTS ON MY ORDER



by:

1 Year in and still working flawlessly. Put around 2500 miles on the boat trailer since they have been installed.



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exactly as described



by:

My entire axle assembly turned to rust. I rebuilt the whole thing. I metal prepped and painted including mating surfaces.
Nice parts



by:

The plates seem to be made well. I haven't had time to install them. So im hopeing they fit well. Shipping was poor through the postal service. They were supposed to be here on 9-2 but dident show up until 9-8. But I know you guys can't control Shipping. The product seems to be made well.



by:

thanks super fast shipping.. these plates worked perfect on my 1947 ford F1 truck I'am restoring. Joanne is the most pleasant sales rep. I've ever delt with.. Thanks Russ



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Fit perfect!



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Just what I needed



by:

Thanks for you help . Received at 2 pm thrusday and by 4 the trailer is back on the road. Thanks again for great service.



by:

all parts fit perfect. the sales staff at etrailer were absolute professionals. even the woman!!!awsome company!!!

thanks so much!!



by:

This. Bracket. Are. Really n goodim. Using. This. On. My. Car. Hauler


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See what our Experts say about this Redline Trailer Suspension Parts


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B

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