Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16"

Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16"

Item # 7163183UB

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Our Price: $21.98

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Shipping Weight: 0.93 lbs

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Trailer Square U-Bolts Qty 2 3-1/8 Inch X 3 Inch X 7/16 Inch
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Product Images


  • Roller and Bunk Parts
  • U-Bolts
  • 3 Inch Long
  • Zinc-Plated Steel
  • Redline
  • 7/16 Inch Diameter
  • 3-1/8 Inch Wide
Call 800-298-8924 to order Redline boat trailer parts part number 7163183UB or order online at etrailer.com. Free expert support on all Redline products. Guaranteed Lowest Price and Fastest Shipping for Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16". Boat Trailer Parts reviews from real customers.


  • All Info
  • Reviews (23)
  • Q & A (11)
  • Photos
  • Why etrailer?

Redline Boat Trailer Parts - 7163183UB


Trailer U-bolts ideal for boat, snowmobile, and standard utility trailers.

  • Zinc Plated to resist corrosion
  • Square bend simplifies attachment of hardware to square trailer frames
  • Dimensions:
    • A: 3-1/8"
    • D: 7/16"
    • L: 3"

cargo control display

7163183UB Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16"








Customer Reviews

Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16" - 7163183UB

Average Customer Rating:  4.9 out of 5 stars   (23 Customer Reviews)


- 7163183UB
by:

Quality Parts...heavy duty and well mad e. 60528



- 7163183UB
by:

Product received as expected. Great service. will definitely use again. 340202



- 7163183UB
by:

Well made great price 681399



- 7163183UB
by:

as described good quality 635122



- 7163183UB
by:

Exactly what I needed. Great quality parts for rebuilding my bunk hardware. 629101



- 7163183UB
by:

Great customer service, fast shipping. I love the free shipping on $100 or more !! My new go to place for all my trailer needs, thanks 617776



- 7163183UB
by:

Fit perfectly 607265



- 7163183UB
by:

Worked great for mounting ammunition tool box to ROPS bar on Kubota BX 2350 tractor 480625



- 7163183UB
by:

Got just what I needed at a fair price. Got parts for my boat trailer. 378311



- 7163183UB
by:

Finally found them, should've checked etrailer first. 345325



- 7163183UB
by:

Received parts far quicker than I was expecting. The worked great and fit just like the old ones. Will use etrailer.com again. 336005



- 7163183UB
by:

Awesome support while ordering the parts. Everything fit perfectly. Shipping was very fast. 305787


Comments

Everything is working fine.

J W - 10/10/2017

28943

- 7163183UB
by:

Fast shipping!! 302159



- 7163183UB
by:

Just as described and fast shipping. Will defiantly buy from you again. Thanks 288058



- 7163183UB
by:

Excellent quality replacement from my 18 year old originals that needed to be replaced. 241487



- 7163183UB
by:

Part came just as stated, installed and ready. Would buy again from etralier! 220295



- 7163183UB
by:

they fit !! 196581



- 7163183UB
by:

Great servive and very quick delivery. Price was very fair. I will buy again if the need arises. 192296



- 7163183UB
by:

Great Service and value! Company followed up after delivery to make sure order was as expected. Thats customer service!! Replacement parts for my trailer fit as advertised and arrived in a few days. I highly recommend etrailer if you want customer satisfaction. 108085



- 7163183UB
by:

Second set of these I've ordered. Perfect fit and size for my application over 3"x2" square steel tubing. Can't beat the quality! 100288



- 7163183UB
by:

These bolts were used on a 2x3 square steel tube to hold casters. The extra 1/8" in width made installation a breeze and the bolts themselves are well made. Mounting hardware is a big plus with self locking nuts included. 99544



- 7163183UB
by:

good quality 99229



- 7163183UB
by:

EXellent product...everything was exactly as advertised and shipping was quick 64535


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23

Ask the Experts about this Redline Boat Trailer Parts

Do you have a question about this Boat Trailer Part?


  • Recommended U-bolts and Brackets for Boat Trailer Bunk Boards
  • I recommend the Trailer Square U-Bolts (Qty 2), 3-1/8" x 3" x 7/16" # 7163183UB to go with the CE Smith Bolster and Swivel Bracket Assemblies - Galvanized Steel - 9" - Qty 4 # CE10000G-4. This will allow you to mount them to your 3x3 inch square tube trailer. For your bunk boards, I recommend the Fulton Marine Grade Carpeting, 12" Wide x 144" Long - Black # FCR8012 to cover your bunk boards. Make sure to use pressure treated lumber and attach with corrosion resistant hardware and...
    view full answer...

  • U-Bolts to Attach Bunk Brackets to Trailer with 3 inch Frame
  • For a 3 inch trailer frame like you said you have we have the U-bolts part # 7163183UB which will work great for attaching roller bunk brackets like the part # CE10000G-4. The inside portion of the U-bolt is 3-1/8 inches wide by 3 inches long.
    view full answer...

  • Mounting Instructions for Redline # PF11X35W-2 Fenders
  • I do not have instructions, but I can explain how the fender brackets are used. The mounting brackets slide into the underside of the step on either side of the fender with the open end of the bracket facing downward. The fender secures to the bracket by running a bolt (not included) through existing holes in the fender into holes in the bracket. The flat top edge of the bracket attaches to the underside of the trailer frame using U-bolts that are not included. We offer two suitable...
    view full answer...

  • Availability of U-Bolts to Fit Around a 4-Inch RV Bumper
  • The only U-bolts we sell that are designed to fit around a 4 inch bumper are meant to be used with a spare tire carrier like part # TR-1. The replacement U-bolts are part # TR-2200. These are meant to secure a spare tire carrier only, and would not be recommended for a bike rack or a bumper mounted receiver. If you could tell me what you were needing the U-bolts for, I might be able to find you a more suitable replacement.
    view full answer...

  • Looking for 6 Galvanized U-Bolts that are 3 Inches Square with 7/16 or 1/2 Inch Diameter
  • We have a few different options for you to choose from. The CE Smith U-Bolt, # CE15252A, is zinc-plated and it is 3 inches long x 3-1/8 inches wide x 7/16 inch diameter. This u-bolt was designed to fit around 3 inch trailer frames. We also offer this u-bolt in a set of 2 as part # 7163183UB and with a stainless steel finish which is part # CE15502A. I have attached links to each of these parts below. We do not carry any square u-bolts that are 3 inches wide because they would be more...
    view full answer...

  • Would the Single Axle Trailer Fenders # PF11X35W-2 fit on an EZ Loader Trailer with 15 in Wheels
  • The Single Axle Trailer Fenders # PF11X35W-2 you referenced are designed to fit 13-15 inch wheels so it should fit your wheels. The fenders are 11-5/16 inches wide by 45 inches long by 13 inches tall, you will need to compare those dimensions to your setup to see if they will be compatible. I also attached a picture that shows how the installation hardware installs on a trailer for you to check out. We offer two suitable u-bolts that might work for you, depending on the height of...
    view full answer...

  • Recommended Roof Rack For 2007 Toyota Prius To Carry Plywood Mounted Solar Panel
  • We do not have roof racks with holes in them as you mentioned but the best option I can recommend is to install a roof rack with a square crossbar like the Thule Traverse roof rack. This roof rack has 43-inch square steel crossbars and a custom fit kit for your 2007 Prius. to order this roof rack you will need part # TH712100, part # TH710501, and part # TH145181. I then recommend using U-bolts similar to part # 7163183UB to secure the plywood on the roof rack. These U-bolts come with...
    view full answer...

  • Do Roller Bunk Brackets DL21742 Require 7/16" U-Bolts?
  • The Boat Trailer Roller Bunk Brackets # DL21742 do require 7/16" U-bolts such as # 7163183UB. The bunk brackets are designed to be used with Roller Bunks # DL21740 or # DL21741.
    view full answer...

  • How Many U-Bolts Come with the Trailer Square U-Bolts (Qty 2) # 7163183UB
  • The Trailer Square U-Bolts (Qty 2) # 7163183UB that you referenced contains 2 u-bolts per order.
    view full answer...

  • How to Secure Removable Cargo Box from Rola Tilting Enclosed Cargo Carrier # 59110
  • The Rola Tilting Enclosed Cargo Carrier # 59110 that you referenced does come with locks to secure both the lid of the cargo box and to secure the box to the tray portion (using the same key) but it does not have a built-in facility to allow the box portion to be locked to a stationary object such as a tree at your campsite. I checked with my contact at Rola and confirmed that no optional lock kit is offered for this item for that particular application. However, it is certainly possible...
    view full answer...

  • Replacement Hardware for Hitch for 1994 Toyota Camry
  • The best way to insure you have the proper hardware is to order a Replacement Hardware Kit, it comes with all the nuts, bolts and other hardware that originally came with the hitch. Use part # RHK and enter in the manufacturer and model number of the hitch and we can send you all the hardware that should be used to install the hitch.
    view full answer...


Do you have a question about this Boat Trailer Part?




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Info for this part was:

Expert Research:
Patrick B
Expert Research:
Jameson C
Updated by:
Laura H

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