bing tracking image
  1. Boat Trailer Parts
  2. Yates Rubber
  3. Rollers
  4. Bow Roller
  5. 3-1/2 Inch Diameter
  6. 3-7/8 Inch Long
Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft

Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft

Item # YR4174-4
Our Price: $16.54
You Save: 12%
Boat Trailer Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.9 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Replace the worn-out roller on your boat trailer with this heavy-duty rubber one. This bow roller functions as a direct replacement for rollers that fit standard 4" wide brackets with a 1/2" diameter shaft. 1-800-940-8924 to order Yates Rubber boat trailer parts part number YR4174-4 or order online at Free expert support on all Yates Rubber products. Great prices and Fastest Shipping for Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft. Boat Trailer Parts reviews from real customers.
  • All Info
  • Reviews (119)
  • Q & A (0)
  • Videos (2)
  • Photos

Yates Rubber Boat Trailer Parts - YR4174-4

  • Rollers
  • Bow Roller
  • 3-1/2 Inch Diameter
  • 3-7/8 Inch Long
  • Black Rubber
  • Fits 1/2 Inch Shaft
  • Yates Rubber

Replace the worn-out roller on your boat trailer with this heavy-duty rubber one. This bow roller functions as a direct replacement for rollers that fit standard 4" wide brackets with a 1/2" diameter shaft.


  • Replaces 1 bow roller on your boat trailer
  • Eases loading and unloading of boat
  • Supports front of boat as it sits on trailer
  • Helps to absorb road shock while boat is being towed
  • Constructed of heavy-duty rubber
  • Made in USA


  • Application: 4" wide bracket with 1/2" diameter shaft
  • Dimensions: 3-7/8" long x 3-1/2" diameter

4174-4 Yates 4" Bow Roller - Black Rubber

Video of Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft

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

Video Transcript for Yates Rubber Boat Trailer Parts - Roller and Bunk Parts - YR4174-4 Review

Today we're going to review part #yr4174-4. This is the Yates bow roller for boat trailers. This bow roller is constructed of a heavy duty rubber material. It is made in the USA. This will replace the worn out bow roller on your boat trailer. This will help in the loading and unloading of the boat and it will support the front of the boat as it sits on the trailer.

This will also help absorb the road shock while the boat is being towed. Now we are going to do a few measurements on this. The length is 3 and 7/8 inches. The diameter is 3 and a half inches. This bow roller is designed to fit on a 4 inch wide bracket that has a half inch diameter shaft.

And that should do it for part #yr4174-4.

Customer Satisfaction Score:

Customer Reviews

Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft - YR4174-4

Average Customer Rating:  4.9 out of 5 stars   (119 Customer Reviews)

Replace the worn-out roller on your boat trailer with this heavy-duty rubber one. This bow roller functions as a direct replacement for rollers that fit standard 4" wide brackets with a 1/2" diameter shaft.


Exact part that I needed for my 24yo boat trailer. I wanted to replace my old parts with the exact part that came with the trailer. I could have bought knock-off parts from another site but didn't trust the quality or the sizes that was offered. etrailer had what I wanted. Quick shipment too. Kept me informed of the process of my order.


Works just fine! Just can't tighten the bolt as tight as humanly possible or it won't allow the roller to turn. Use a nylon nut and/or put a tack weld on the nut and you're good to go.




Exact replacement, less than 5 minutes ro replace. Took more time to get the tools and put them away.


The correct product was delivered right on time, with no surprises. This company is very easy to do business with.


Working as it should.


Bought everything to completly rebuild my trailer. All products were good quaility and fit perfectly. The outstanding service was the best part. Never have done trailer work before and I called and talked to support. Got me everything I needed and it was all correct. Upgraded my shipping for free and I still recieved my order quicker than they told me I would.


Product was easy to order, Product was exact replacement, Fast shipping, Great communications AAA+++

John S.


Just like OEM, Working well.


Fits perfectly on my 1985 EZ loader boat trailer and matched the old worn out bow rollers.


This bow roller fit perfect on my shorelander trailer winch. They call it a 4 inch wide roller and was wondering if it would fit but when I received it I measured and it was 3-3/4 inches wide and fit perfect. It only took about 4-5 days to receive it. Great place to order parts.


direct fit replacement.
price very
good compared to other suppliers.
on time delivery .





Exact replacement for my 2003 trailer.



Product is a lot more cooperative than my fishing schedule. No issues 1 year later.


A quality product.


Product was easy to locate and order, quick and simple. Price was very reasonable and even beat the best prices on eBay! Checkout was very smooth and delivery was timely and as promised.
I'd definitely consider when my next boating accessory need arises.


Ordered 4" bow roller and it fits perfectly. Shipping was fast and I'll be ordering more items from etrailer. Great company to buy from.


Well, it's a bow roller, what else can I say? It fits well with the roller bracket you can order on the website and with the shaft as well. Service was awesome and turnaround time was quick. Thanks etrailer!


perfect replacement and good quality

John S.


All of these products are fine. I have no complaints.


Item as described. I had to replace my roller because it fell apart from being old. My boat trailer is from 1991 and this is the first time I replaced the roller on the bow. Great service and fast shipping.


The bow roller fit perfectly as it was a direct replacement for what was there. The quality looks great and the installation was easy. I would definitely use your company again


Items appeared to be of good quality, service was very good and delivery was ahead of schedule. I have the web page bookmarked for any future trailer needs.


Hello all, I ordered new boat trailer rollers... Great products and quick shipping


etrailer's website is so easy to use, they have a huge selection of products, and after days of searching I finally found the roller I needed. And surprise! they delivered it to Hawaii in a couple of days!!


I am very pleased with how easy and efficient the entire process went in ordering and reciving my product. I am happy to continue doing business with in the future!


Product was very easy to install, very well built and looks good on my trailer


happy with the products I purchased and pleased with the pricing of the itmes. Will surely be purching from Etrailer in the future.

Gary Lippa

Show More Reviews

See what our Experts say about this Yates Rubber Boat Trailer Parts

  • What is the Largest Diameter 4 Inch Bow Roller for Boat Trailer Available
    Currently the CE Smith Bow Roller for Boat Trailers - PVC - 4" Long - 1/2" Shaft - Amber # CE29543 is the largest diameter roller we carry at 3-3/4 inches. The Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft # YR4174-4 is the next largest at 3-1/2 inches and the other options are 3-1/4 inches in diameter. I've linked the page to all your options to assist.
    view full answer...
  • Bow Roller Recommendation to Replace a Bow Stop on a 1986 Eagle Trailer
    The Yates 4 Inch Bow Roller, # YR4174-4, is designed to be used with a 4 inch wide mounting bracket. The roller itself actually measures 3-7/8 inches long so it can fit in a 4 inch space and roll. This roller should work great on your 1986 Eagle trailer. A small gap between the roller and the bracket is ideal to allow the roller to rotate freely. A 3 inch roller would not stay centered with the boat hull when loading as well as the 4 inch roller would.
    view full answer...
  • Replacement Bow Roller Brackets for Boat Trailer
    While we don't have any specific replacements for your boat trailer we do have bow roller brackets that you may be able to use. For example, the CE Smith Bow Roller Bracket # CE31005PG with the Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber # YR4174-4 and Roller Shaft with Pal Nuts for Boat Trailer Rollers # CE10700A. I have added links to video reviews of these parts as well as links to our entire selection of brackets for you to look through.
    view full answer...
    Image 1 for
  • Replacement Bow Roller for 5/8 inch Shaft
    I have a few different options for you. The Rubber Endcap # YR134-5 that you mentioned can be used with keel rollers, spool rollers, or bow rollers. If you are wanting to stick with a bow roller, We do have a Bow Roller Assembly # YR450B-400B available that comes with a 1/2 inch shaft. This will eliminate the need to find a bow roller with a bigger shaft hole. I did go out to the warehouse to see with it was possibly that a 5/8 inch shank could fit in a bow roller that has a 1/2 inch hole...
    view full answer...
    Image 1 for
  • Replacement Option for 3-1/2" Rubber Bow Roller
    The closest thing we have to a 3-1/2" long bow roller is the # YR450BLK. This is 3-3/4" long x 3-1/4" diameter and made of thermal-plasticized rubber. If you don't want the thermal-plasticized rubber we have the # YR4174-4 which measures 3-7/8" long x 3-1/2" diameter. Both of these are made for a 4" wide bracket with a 1/2" diameter shaft.
    view full answer...
  • 3 inch Boat Roller Availability
    We sell 3 inch bow rollers like the part # YR300Y that is designed to attach to a 1/4 inch stud. Or for a 3-3/4 inch one you would want part # 804 or # YR4174-4.
    view full answer...
  • Recommendation for Replacement Bow Stop Roller Measuring 4 Inches with 1/2 Inch Hole
    Hey Craig, thanks for your recent order with We really appreciate your business. I have a couple different options that would work for you. Yates offers the thermoplastic rubber bow roller in yellow, # YR450Y, and blue, # YR450B. The thermoplastic rubber material is stronger and softer than the standard polyurethane rollers and it won't leave marks on your boat. These rollers measure 3-3/4 inches long and are made to be used in 4 inch wide brackets with 1/2 inch diameter...
    view full answer...

Do you have a question about this Boat Trailer Part?

Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Lindsey S
Written by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee John H
Expert Research:
John H
Employee Aidan B
Video by:
Aidan B

At 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.