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Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1

Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1

Item # PF775X21W
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7-3/4" Wide x 21" long x 5-1/4" tall. This corrosion- and impact-resistant plastic fender is designed for single-axle trailers and is perfect for marine applications. It fits 8-12" wheels and installs with steel brackets. Lowest Prices for the best trailer fenders from Redline. Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1 part number PF775X21W can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (58)
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Redline Trailer Fenders - PF775X21W

  • 8 Inch Wheels
  • 10 Inch Wheels
  • 12 Inch Wheels
  • For Single-Axle Trailers
  • Bolt-On
  • Plastic
  • 20 Inch Long
  • No Step
  • 7-3/4 Inch Wide
  • White
  • Redline

7-3/4" Wide x 21" long x 5-1/4" tall. This corrosion- and impact-resistant plastic fender is designed for single-axle trailers and is perfect for marine applications. It fits 8-12" wheels and installs with steel brackets.


  • Designed for single-axle trailers
    • Works great for marine applications
  • Constructed of white plastic
    • Corrosion and impact resistant
  • Requires 2 installation brackets (PF775-BKT-2; sold separately)
  • Made in the USA


  • Application: single-axle trailers with 8" - 12" diameter wheels
  • Dimensions: 7-3/4" wide x 21" long x 5-1/4" tall
  • Qty: 1 fender

PF775X21W Plastic, Single-Axle Trailer Fender - White - 8" to 12" Tires

Video of Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1

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

Video Transcript for Redline Trailer Fenders - No Step - PF775X21W Review

Today we're going to be reviewing part number PF775X21W. This is the Redline Single-Axle Trailer Fender in white. It is designed to fit 8 to 12-inch wheels. With this part number, one fender is included. It is designed to work for single-axle trailers. It's going to work great for marine applications. It's constructed of a white plastic, which makes it corrosion and impact-resistant. This does require 2 installation brackets that are sold separately.

Those can be found at with part number PF775-BKT-2. You can see here that it does have 2 pre-drilled mounting holes on each side. Those are square. Each one is going to measure about 3/8 of an inch in width. This square is going to be 3/8 by 3/8. To be exact, it's right at, from edge to edge, 7/16 of an inch. Keep in mind, when using plastic, you do have a little bit of flex in there, since it is a plastic material.

That will give a little bit, if you need to use a larger bolt application. The distance from the center of one hole to the center of the other is going to measure 3-1/2 inches. That's going to be the same on each side. If we measure from the center of one hole on the front to the center of one hole on the rear, it's going to give us a measurement right around 18 inches. Once again, this is designed to be used with single-axle trailers with 8-inch to 12-inch diameter wheels. You can see here that we have the nice curved lip 01:48 on both sides. Thats really going to help trap in the road debris that may flare up from the wheel, keeping it from harming any vehicles around us and also keeping it from damaging any cargo that we're holding on our trailer. The overall length is going to give us a measurement of 21 inches.

Overall height is going to measure 5-1/4 of an inch. Then the overall width is going to measure 7-3/4 of an inch. Keep in mind that when mounting, you want to be sure that you do it in such a way that's going to be best suitable for your trailer. That's going to do it for today's review of part number PF775X21W. This is the Single-Axle Trailer Fender from Redline for 8-inch to 12-inch wheels. .

Customer Reviews

Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1 - PF775X21W

Average Customer Rating:  4.6 out of 5 stars   (58 Customer Reviews)

7-3/4" Wide x 21" long x 5-1/4" tall. This corrosion- and impact-resistant plastic fender is designed for single-axle trailers and is perfect for marine applications. It fits 8-12" wheels and installs with steel brackets.


Matched my old fender perfectly. It will hold my weight unloading the boat from my trailer.


These were and exact replacement for the fenders on my Jon boat trailer. Very happy with the product.


Boat fenders were sent promptly and they were exactly as described. Perfect! Thanks so much!


I needed a new fender after a tire blew and took out the old one. This fender was a exact match. Thanks


I have an old utility trailer and just finished a renovation of it. These fenders were just what I needed to finish the job. Be sure to order the angle brackets for mounting. Hardware not provided.

One year later, the fenders are holding up well. They provide a nice finished touch to the appearance of the trailer.
Bill S - 12/27/2014


The fender was a perfect fit for the one I had ruined. The old fender was fastened with steel bolts and nuts that were badly rusted and they were extremely hard to get off. I decided I would go one better on the replacement. I purchased stainless steel stove bolts and stainless steel nylon insert nuts. That was a mistake. The plastic square hole in the fender to hold the top of the stove bolt was not strong enough to endure the pressure of the nylon insert nuts. So I had to get in there with a vice grip to hold the heads. I made a simple project very difficult. And Heaven help me if I EVER have to get that fender back off! So advice - good idea to use stainless steel bolts but also just use plain stainless steel nuts!
Fender still looks good and I am pleased!


Lowered my skiff 4 inches on my trailer for easier loading at shallow ramps and old steel fenders were too tall and also heavy. My tires are 12 inch and fenders were just right for protective coverage. These short and light weight plastic fenders did the trick with the help of 1/2 inch spacers to make sure they were out wide enough to miss the hull. Plus, plastic won't hurt the hull if they did hit slightly.
Great little fenders, made in USA, great price and service from etrailer!


The fenders arrived in two days, shipped out the same day as ordered. They are very nicely made and do a great job of covering the wheel on the trailer. The original steel fenders were cracked and in danger of falling off. These fenders with the mounting brackets fixed the problem. I am very satisfied with them.


I've been searching far and wide for a replacement trailer fender and finally to a bit of a risk and ordered one from eTRailer based on the comments about the fender. I had to ferret out the dimensions and this fender and hope it fit - it did - it wasn't an exact replacement. Recommendation - include a fitment guide in the description with exact hole pattern layout an make this easier. Thanks for making this available and carrying it.


I have mixed emotions about my fender order. The order was processed quickly and were shipped quickly. When I received them I was very impressed with them. The fender color and my trailer color are exactly the same. The problem is that they don't fit. My original fender was about one inch longer than these are so now I will have to cut off the mounts and get new ones welded on the trailer in order to make these fit. When ordering I checked measurements and they seemed to be the same, but reality says that they weren't.


Just what I needed. Inexpensive and does the trick. Looks fine! Real value


Just got my fenders they look great, haven't install them yet due to my jet ski is at the dealer ship but as soon as get it back I will post a pic, costumer service is wonderfull, I'll definitely recommend etrailer for all you need, thanks against for all your help folks.


Great little fenders for the price. Assembly easy enough after cleaning the existing bolts. Would have bought these replacements earlier had there been mounting dimensions. Wife is happy I won’t be tossing rocks up behind me in traffic anymore.


The fender for my jet ski trailer arrived promptly and was the exact size of the one that needed to be replaced . It did come in somewhat dirty though. Which was no big deal to clean off.
Thanks Ken


I have not yet installed the fenders on my sailboat trailer bu I have been able to hold them in position and it looks like they will work just fine. They are exactly as described and will work well.


As advertised and meets the criteria for my home built trailer. Remember to order the brackets... I forgot


I can always count on getting a great product and getting it delivered in a short
amount of time. This is the reason I keep shopping at Keep up the
great work.


This product came in record time and at a low cost for the quality. I will consider ordering again from etrailer in the future because of the way they do business.
Thanks, etrailer.


Excellent product selection and service! Thank you


Perfect fit . Little modification for brackets and bolted right to the frame. Looks great.


exactly what I wanted...


Trailer fender was ordered and acknowledged alomost immediately with several follow-up emails. Product was received and delivered
as promised. Will use etrailer again. Thank You for the excellent service.


Ordered a trailer fender for my boat , was deliverd on time. I'm totally satisfied.


fenders came packed to ensure no damage during shipping.
exact replacements! couldn't be more satisfied.


The product was exactly what I expected at a good price, shipping was very fast with frequent tracking updates.

Show More Reviews

See what our Experts say about this Redline Trailer Fenders

  • What is the Lengthwise Spacing of the Mounting Holes for Trailer Fender # PF775X21W
    It looks like the Single Axle Trailer Fender # PF775X21W is the same fender you have on your trailer. I went out into our warehouse and measured the distance lengthwise between the mounting holes of the fender and found it to be 18 inches.
    view full answer...
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  • Will the Galvanized Steel, L-Shaped, Bolt-On Bracket # PF775-BKT fit a Utility Trailer
    In order to determine if the Galvanized Steel, L-Shaped, Bolt-On Bracket # PF775-BKT would fit your trailer you would want to check out the picture I attached that shows it's dimensions. You will then need to compare them to your trailer to see if they would fit. This bracket is designed to work with the Single Axle Trailer Fender # PF775X21W that is designed for 8-12 inch wheels.
    view full answer...
    Image 1 for
  • What is the Spacing on the mounting Holes for Trailer Fender PF775X21W
    I went out to the warehouse and pulled trailer fender # PF775X21W. The holes on the top are 3-9/16 inches apart on center. The holes are 3/8 to 7/16 inches wide (there is a little room for tolerances since the plastic can expand and contract a little). You can use mounting brackets # PF775-BKT-2 to mount the fender.
    view full answer...
  • Boat Trailer Fender # PF775X21W Mounting Bracket and Hardware
    The Single Axle Trailer Fender - White Plastic - 8" to 12" Wheels - Qty 1 # PF775X21W you asked about uses the Galvanized Steel, L-Shaped, Bolt-On Brackets for Plastic, Single-Axle Fender PF775X21W - Qty. 2 # PF775-BKT-2 but the hardware is not included and we don't carry it. You will need to obtain what you need from a local hardware store.
    view full answer...
    Image 1 for
  • Availability Of Plastic Trailer Fenders For 12" Wheels On Harbor Freight 4x8 Trailer
    We offer quite a few different plastic trailer fenders that will work with the 12" wheels on your 4x8 Harbor Freight trailer like the Single Axle Trailer Fender # PF775X21W, but all of our fenders will require a mounting bracket and will not be able to be directly bolted on. For example the # PF775X21W will need the Bolt-On Brackets for Plastic, Single-Axle Fender # PF775-BKT-2. I included a video for the # PF775X21W and a link to all of our plastic fenders for 12" wheels for you to take...
    view full answer...
  • Does the Fulton Plastic Fender with Top Step # F008554 Require Mounting Brackets
    You will need to mount the Fulton Plastic Fender with Top Step, item # F008554, using existing mounting brackets or by making mounting brackets to mount the fender. We do carry fender mounting brackets for another style of fender that may work for you. The Galvanized Steel, L-Shaped, Bolt-On Brackets for Plastic, Single-Axle Trailer Fender PF775X21W (pair), item # PF775-BKT-2, is designed for use with the Plastic, Single-Axle Trailer Fender, item # PF775X21W, and does not include mounting...
    view full answer...
  • Mounting brackets for Mounting the Fulton Trailer Fenders # F008550 to a Motorcycle Trailer
    We carry fender mounting brackets that may work for your application. Check out the Galvanized Steel, L-Shaped, Bolt-On Brackets for Plastic, Single-Axle Fender PF775X21W (Pair), item # PF775-BKT-2. These brackets are designed for the Plastic, Single-Axle Trailer Fender - White - 8 inch to 12 inch Tires, item # PF775X21W. This style of fender is only available in white. At this time we do not have specific mounting brackets designed to work with the Fulton Plastic Fender - Black - 8...
    view full answer...
  • How to Choose the Correct Boat Trailer Fender
    What determines the size fender you need is your trailer's wheel size. The fender in your photo looks like the model from Redline. The smallest version of this we carry is # PF775X21W and is for wheels that are between 8" and 12". It is 7-3/4" wide x 21" long x 5-1/4" tall and requires installation brackets # PF775-BKT-2. If you have wheels that are 13" you may want to take a look at the Fulton # F008543 which is 9" wide x 29-1/4" long x 12" tall. I have added links to video reviews of...
    view full answer...
    Image 1 for
  • Comparing the Redline # PF775X21W and Fulton # F008549 Fenders for 8
    Aside from the mounting holes being different, because the Fulton is 2 inches longer, the only other difference between the Redline # PF775X21W and the Fulton # F008549 fenders is that the Fulton version has a step that can hold up to 300 lbs. They both are White and made from a plastic that is durable and will resist corrosion much better than a steel option. You are correct that Fulton does not offer a design that fits the exact same mounting holes as the Redline version so if you were...
    view full answer...
  • What Mounting Hardware to Mount Fulton Single Axle Trailer Fenders
    The Galvanized Steel, L-Shaped, Bolt-On Brackets for Plastic Single-Axle Fender # PF775-BKT-2, which can be used to mount the Fulton # F008554 fenders have 1/2" bolt holes on them- so you'd need to use bolts that size if using those. You can also use any existing hardware that you might have from the parts you're replacing, but there is not specific hardware for these fenders or brackets.
    view full answer...
  • Metal Fender Recommendation for PWC Trailer
    We offer several metal fender that could work for your trailer (see attached link), but none of them are going to bolt directly to your current trailer fender brackets. A trailer fender like the part # CE17701G would work well on a smaller PWC trailer like what you have but mounting holes would need to be drilled in it. I attached a dimension picture for the fender as well as a review video for you to check out.
    view full answer...
    Image 1 for
  • Replacement Fenders for 2005 Triton LT WCI-I PWC Trailer
    I wasn't able to locate the Triton 0507453 fenders online. We classify our fender selections by the diameter of the trailer wheel. The # PF775X21W for instance, is designed for an 8-12 inch diameter wheel. I looked up your PWC trailer online, and it looks like we have some fenders that would be a pretty close match, assuming that your trailer uses 12 inch wheels. If that's the case, use # F008592 for silver, # F008582 for black or # F008572 for white.
    view full answer...
  • Steel or Aluminum Fenders Similar to the Redline Plastic Single-Axle Fender for 8 to 12 Inch Tires
    We have a few steel and aluminum fenders that are very similar to the Redline Plastic Fender for 8 to 12 inch wheels, # PF775X21W, but they are not exact matches. For 8 inch trailer tires, we offer part # CE17700G (steel). For 12 inch tires we offer part # CE17701G (steel) or # CE17701ATB (aluminum). The fenders for 8 inch tires measure 20 inches long by 7 inches wide by 6 inches tall and the fenders for 12 inch tires measures 23-1/2 inches long by 7 inches wide by 6-1/2 inches tall. If...
    view full answer...

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