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Replacement Adjustment Knobs for Yakima RailGrab Roof Rack Towers - Qty 2

Replacement Adjustment Knobs for Yakima RailGrab Roof Rack Towers - Qty 2

Item # Y8880148
Our Price: $3.03
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Shipping Weight: 0.02 lbs
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Replace 2 adjustment knobs and screws for your Yakima RailGrab roof-rack towers for flush and raised roof-rack sider rails. These knobs secure the claws to the claw bases in theRailGrab towers, and allow vertical adjustment of the claws. 1-800-496-5010 to order Yakima accessories and parts part number Y8880148 or order online at Free expert support on all Yakima products. Guaranteed Lowest Price and Fastest Shipping for Replacement Adjustment Knobs for Yakima RailGrab Roof Rack Towers - Qty 2. Accessories and Parts reviews from real customers.
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  • Reviews (105)
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Yakima Accessories and Parts - Y8880148

  • Roof Rack
  • Tower Parts
  • Hardware
  • Yakima

Replace 2 adjustment knobs and screws for your Yakima RailGrab roof-rack towers for flush and raised roof-rack sider rails. These knobs secure the claws to the claw bases in theRailGrab towers, and allow vertical adjustment of the claws.


  • Replaces 2 knob and screw assemblies for your Yakima RailGrab roof-rack towers
  • Secures the claws in place on your RailGrab towers
  • Allows vertical adjustment of the claws for optimal positioning on your roof-rack side rails
  • Fits Yakima RailGrab roof-rack towers Y00138, Y00139, and Y00140

8880148 Replacement Knob and Screw Assemblies for Yakima RailGrab Roof Rack Towers

Video of Replacement Adjustment Knobs for Yakima RailGrab Roof Rack Towers - Qty 2

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

Video Transcript for Review of Yakima Replacement Roof Rack Adjustment Knobs - Y8880148

Michael: Hi there. I'm Michael with, we're going to take a quick look at the replacement adjustment knobs for your Yakima RailGrab roof rack towers. These are pretty small knobs, so I can imagine it'd be very easy to lose track of. So if you've lost or damaged your original knobs that screw into your Yakima RailGrab roof rack towers, these are going to be the exact replacements that you need. These are a Yakima replacement, so you can trust it's going to work with your towers. You're not going to have to worry about compatibility issues or anything like that.These will help to secure the claws in place in your RailGrab towers, which will allow you to vertically adjust the claws for optimal positioning on your roof rack side rails.

Now these are designed specifically to work with the Yakima RailGrab roof rack towers, whether that be any of the three numbers that you see on the screen there. So they are going to do a good job, and because they are Yakima products, you can trust they're going to work for you. So rest assured if you need the replacement for these, these are going to be the piece that you need.So that's going to complete our look for today. Again, I'm Michael with Thanks for watching..

Customer Satisfaction Score:

Customer Reviews

Replacement Adjustment Knobs for Yakima RailGrab Roof Rack Towers - Qty 2 - Y8880148

Average Customer Rating:  4.9 out of 5 stars   (105 Customer Reviews)

Replace 2 adjustment knobs and screws for your Yakima RailGrab roof-rack towers for flush and raised roof-rack sider rails. These knobs secure the claws to the claw bases in theRailGrab towers, and allow vertical adjustment of the claws.


These and some other parts I had to order later made for a complete rebuild of my Yakima roof rack to fit my Subaru Forester. The original Forester roof rach was too small for my canoe, but the Yakima works perfectly.


These small parts are difficult to find.
contacted Yakima directly but they instructed me to purchase through a Vendor. Fortunately etrailer had these items in Stock; so thank you!


Photos of Yakima Railgrabber taking the place of original Subaru Forester Roof Rack that was too small.


Good product. Good shipping. Will continued to do business.


I bought used racks and turns out that I needed additional parts. Searched the yakima website and they didn't have what I was looking for. Etrailer had exactly what I needed. My husband was surprised that I found them on etrailer. They arrived quickly too. Now we know where to look first next time


Everything arrived on time and in perfect condition, all of the parts fit perfectly.
I’ll be ordering all of my roof rack parts from them!

Still working better than new!
Josh - 08/12/2021


Product is excellent, took a few extra days to get here but that's because of flood, snow, ice... pandemic. Overall good. Be careful, these were seized in and I had to break them off and replace them to adjust to new vehicle rails. replacements look good.


Thumb screws fit with the adjustable cleats well


Got what I wanted fast!


The product I received was to replace my old ones. They were two years old. The negative thing about this item is the outside is plastic. The inside bolt is metal . So when you leave this on your car for two years and then want to take them off, they strip. I would think if there was a way to have s metal sleeve inside the knob this wouldn't happen. As far as etrailer.coms role in getting me the replacements, they did a great job.

Same thing happened to me. When I get the new set, Im going to coat the threads in anti-seize.
-- comment by: John S - 03/11/2015


These were just what we needed to be able to keep our 10 year old Yakima kayak system on our new car. Spending money on this saved us hundreds! THANK YOU for stocking these AND getting them shipped so quickly.


Just what I needed and the website made it easy to confirm I was getting the right parts.


Exact replacement bolts for our Yakima railgrab claw assembly.

***Please note to use a dab of anti-seize lubricant on these bolts or they will bond to the Yakima claw assemblies and become inseparable requiring the installer to purchase new Yakima claw assemblies and Yakima threaded bolts if the Yakima rails are ever used on a different vehicle.***


Perfect fit & arrived in short order, B ravo!


Yakima website is a bit confusing when it comes to parts in general and especially when it comes to parts for discontinued items. Not so with etrailer. Repair parts for my early rack towers were easy to find and quickly in my hands. Great site with great customer service.


I had some parts (this was one of them) that seized up on a discontinued railrider rack system and was in despair until I lucked upon etrailer. They had every part I needed, in stock and shipped out the same day. I had my rack fixed and on the car within three days. I am very grateful George was there. Instead of paying hundreds of dollars to replace a rack system it was a $ repair. Brilliant.

I worked in the paddlesports industry for years so I could tell these were obvious OEM parts, in the correct packaging and shiny new. Effortless repair. I will always rely on now exclusively. Great experience.


I started to reattach my Yakima rack. A couple of thes adjustment jobs were very stuck in place on the towers. I realized the others were headed in the same non-functional direction, and decided to replace all of them "while I am at it."

Yakima has great products, well engineered, etc. But some small things - like these knobs - just last so long.

E-trailer did a great job of fulfilling my order quickly. Quality speaks for itself, and I am happy to share the story.


Product was as shown, and delivered on time. It's great to have one site that you know you can go to for all trailering and rack parts, whether for complete new systems or replacement parts for older systems - etrailer has it covered even when the manufacturer doesn't!


Perfect replacement parts ! Great price , fast shipping !


This product is exactly what I was looking for. It was easy to find and fits perfectly. This is for the Thule Hullavator which I stripped the first time I used it. Getting two of them helps me when I strip another.


Exactly the part I needed to get my Yakima towers working again.

Still working great. No issues at all.
Travis M - 07/17/2020


A little background on the replacement parts- my original adjustment knobs corroded in the roof rack towers, forcing me to cut the plastic in order to use a wrench to get them off. I searched around and found that Yakima had replacements available. Fit like the originals, though I did apply grease this time, in order to avert another corrosion problem.


The products were an exact match for the Yakima screws that I needed to replace. My roof rack is now securely attached.


Parts were just what I needed and they work perfectly! I will use for all my Yakima parts replacement needs.


Perfect match for defective screws that came with my used Yakima rack. Emily was awesome to work with to make sure i got the correct replacement parts.

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Michael B
Installed by:
Michael B

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