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RoundBar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4

RoundBar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4

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These adapters allow you to use Yakima RoundBars with BaseLine, SkyLine, TimberLine, or RidgeLine roof rack towers. Kit includes 4 adapters and 4 endcaps. 1-833-496-1390 to order Yakima accessories and parts part number Y03536 or order online at Free expert support on all Yakima products. Great prices and Fastest Shipping for RoundBar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4. Accessories and Parts reviews from real customers.
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Yakima Accessories and Parts

  • Roof Rack
  • Adapters
  • RoundBar Adapters
  • Yakima

These adapters allow you to use Yakima RoundBars with BaseLine, SkyLine, TimberLine, or RidgeLine roof rack towers. Kit includes 4 adapters and 4 endcaps.


  • Adapters let you mount your Yakima RoundBars on BaseLine, SkyLine, TimberLine, or RidgeLine towers
  • Easy installation - adapters slide onto bars and attach with bolts (included with towers)
  • 4 Adapters and 4 RoundBar endcaps included

8003536 RoundBar StreamLine Adapter for Yakima Base Line, Sky Line, Timber Line, and Ridge Line Towers - Qty 4

Item # Y03536

Video of RoundBar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4

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

Video Transcript for Yakima Roof Rack Review - 2016 Honda CR-V

Today on our 2016 Honda CRV, we're going to be testing the Yakima round bar roof rack system, consisting of part numbers Y00409, these are the round 58 inch cross bars, part number Y00146, these are the baseline tower for the Yakima cross bars, and part number Y03536, which is the round bar SL adapter kit for the Yakima baseline towers, and part numbers Y06148 and Y06152, which are the base clip fit kits for the Honda CRV. The Yakima round bar roof rack system is great for carrying a wide variety of accessories on your roof while freeing up space inside your vehicle for you and your family. The two bars have a combined carrying capacity of 165 pounds although you always want to double check with your vehicle's manual to make sure your roof can withstand that weight. Both of the end caps do come with knock outs which you can replace with the Yakima same key system so you can actually utilize this with your Yakima accessories and make everything key alike. Now that we've gone over some of the features of the roof rack system, let's go ahead and show you how it installs. We have our rear bar partially assembled on our table here, and our next step is to install our base tower to the other end of our bar. So we'll take our baseline tower, take this plastic adapter piece, and that gets pushed on the top here till you hear a couple clicks. Then we'll take our round bar adapter, place that, line up with the screw, then we'll come around to the front of the baseline tower, pull this portion out so we can see the screw that we need to tighten down with our included tool.

Now as we tighten this down, we just want to loosely tighten it up, because we want to still be able to move it along our bar to get our spread between our towers accurate. Slide it on, and we'll put our end cap on here so it doesn't slide back off. And then we'll get our proper spread between our towers. You can find this measurement in your instructions. Once you have it where it needs to be, we'll tighten it down the rest of the way. Now the nice thing about this tool, once you tighten this down, you'll actually hear audible clicks to let you know that you've tightened it to its proper specification and this is also so you don't over tighten it as well. Another thing I'd like to take note, you see these three notches here and this knob here.

Now if we we're to loosen that up, if I was to move this, you can see that the foot moved a little bit. So with this particular vehicle, we want it set towards the back of the car, as you can see here. Next we'll take our foot pad here from our fit kit and we'll push that into place as well. At this point, you can also put your clamps into place, but I like to wait for that after I set this on the vehicle and get the spacing set up so I don't possibly scratch up or damage the vehicle with the clamps still in place. We'll set our bars into place. First we're going to make sure that they're even on both sides, but then we're going to measure from center of the bar to center of the bar for our crossbar spread and this measurement you will find in your instructions.

Now we'll open up our doors, insert our clamps, and start to tighten them down. So we'll take our clamps, you can see this open portion here, that'll hold in like so and you can see this kind of hovering above our door edge here. To lower that down, we'll go to this screw, tighten it down, that'll lower it into place. Then we'll come to the center here. And right now, we'll just snug it up against the door and we'll repeat this process for our driver side.

You can close that up now and our final step is to add our end caps, which you can see these two portions here, these two hooks go into these two areas on our end cap. We'll put those into place, and then we'll load up our gear and hit the road. And there you have it for the Yakima round bar roof rack system on our 2016 Honda CRV.

Customer Satisfaction Score:

Customer Reviews

RoundBar SL Adapter for Yakima BaseLine, SkyLine, TimberLine, and RidgeLine Towers - Qty 4 - Y03536

Average Customer Rating:  4.7 out of 5 stars   (94 Customer Reviews)

These adapters allow you to use Yakima RoundBars with BaseLine, SkyLine, TimberLine, or RidgeLine roof rack towers. Kit includes 4 adapters and 4 endcaps.


The Yakima roof rack system is an Outstanding product. I purchased the product to replace the OEM roof rack because it was too flimsy to carry the tandem bike mount and my bike. The Yakima roof rack is solid and provides me the peace of mind while hauling my bike on the roof of my car. etrailer provided the product for the best price as always.

Still an outstanding product.
Mark - 07/24/2021


Went Over and beyond on helping me solve a difficult problem on
how to fine and put a roof rack on a very difficult car...
Best Customer Service of any company I have ever worked with.
Great service before and after the sale to make sure everything
went smoothly. Can’t thank them enough. Very happy customer.


Installation was relatively easy, instructions were clear. "Snapping" the bases into the towers required more force than I expected, but that speaks to the adapter's durability. I just wish Yakima would manufacture their stuff anywhere other than mainland China.


Standard Yakima Equipmemt. Availability is sketchy but had it in stock!


Thanks to Cody and retailer team


Installation of the hitch, wiring,rear bike rack, and new roof rack towers went well. I didn't set any speed records, but I was more concerned with doing no damage on a new 2019 Toyota Sienna AWD van. The hitch fit up well per instructions except that I was able to work around the exhaust without lowering it. Underbody panel and rear fascia did both need to be removed. Very happy with the end result. The new van is now set up to haul the bikes and canoes and move my log splitter.


Added a bike and ski racks and all performed well


very well designed. nice snug fit


Worked perfectly for the round bars!!


Works great with round bars and Baseline towers.


Just installed, so fsr so good. The threads on one did strip out, but was able to use a tap and rethead and had no problem tightening it down.


Excellent, & your service was fantastic!


Product works as advertised thus far. When you buy the yakima towers, you are required to purchase these as well to fit the rounder bars (I feel sure there are other adapters for other bar shapes). These should have come with the towers in my opinion, and I resented having to shell out more $$ to purchase these "must have" adapters to mount my bars. 3 star overall rating based on function, price. Delivery and packaging was top-notch through etrailer.


The roof rack is great. Solid.


Got to use my old round bars with the new Yakima mounts. Works as it should.


Ordered new towers and clips so as to use my old-school round bars (I bought these at least 18 years ago, maybe even earlier) and bike and canoe accessories on a new vehicle (naked roof 2018 CR-V). Installation was tedious, as usual, but not difficult and the written instructions were straightforward. Youtube helpful too but not necessary. Have hauled bikes and the canoe in high wind on the interstate (no more than 65 mph though) on the CR-V and so far so good. Have had excellent results with Yakima racks on 3 vehicles now (2 sedans and now the CR-V) over last 28 yrs. This is my first purchase through etrailer. Very pleased. Good price, excellent service online and via phone, rapid delivery. Highly recommend.


As always an exceptionally well designed, quality product. Yakima has never disappointed me for more than 25 years now. I still use some of my original rack package. etrailer, per usual, had a great price and wonderful instructional videos. Shipping was fast and everything was perfect. It’s amazing that Yakima can make racks fit so many cars like it was a custom job. This was just a piece of an entire roof rack base with cross bars. Excellent stuff


Packed well and arrived undamaged. Instructions were easy to follow, and installation took about 2 hours. System is very secure and takes maybe half an hour to remove.


Bought as a pkg for my 2017 Golf R with Round Bars since I had a bunch of Yakima bike racks and a canoe gunwale rack for my old Yakima set up. Installation was easy with good instructions. All measurements from the Yakima site appear to be spot on. shipped these out quickly and all parts arrived without damage.


I've got a bunch of 20yo "vintage" Yakima gear that is all setup for the round bars. I'm very happy that this adapter is available to use with modern flush factory rails and Ridgeline towers.


Used to mount my existing Yakima bar. Works well.


Just installed and they worked well on Toyota RAV4 Adventure. Very easy to install.


The Yakima product I purchased for my 2009 Subaru Forester installed in one hour. The rack is the equivelent to having an manufacture installed rack for less the cost. I am abslutely pleased!


Dealing with etrailer has been very easy. The first roof rack was incorrect and they worked with us immediately to get it resolved. In hindsight I am glad as the Yakima is a much better quality and works great with our car.


I bought both the roof rack and the cage from etrailer! Put everything on myself...easy peasy!

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