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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

Item # Y03536
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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. 1-800-940-8924 to order Yakima accessories and parts part number Y03536 or order online at Free expert support on all Yakima products. Guaranteed Lowest Price 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 - Y03536

  • 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

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 - 2017 Kia Soul

Today on our 2017 Kia Soul, we're going to be test fitting the Yakima Skyline Roof Rack System consisting of part numbers Y00408. These are the round 48" CrossBars. Part number Y00148, these are the SkyLine Towers. Part number Y03536, and this is the RoundBar SL Adapter for the Yakima Skyline Towers. Part number Y00233, and these are the Landing Pads for the Yakima Control Towers. The Yakima Skyline Roof Rack is great for carrying accessories on your roof and potentially freeing up space in your vehicle.

It can carry bike racks, cargo baskets, and closed cargo boxes, watersport carriers such as kayaks and canoes, ski and snowboard carriers. Always double check with your vehicle's manual to make sure that your roof can withstand the weight of the things you're putting on there. Combined, the two crossbars here have a carrying capacity of 220 pounds. All four towers have these plastic knock outs in the center here which you can replace with locks that are sold separately. It also has a nice feature that when you're done using the bars, you can simply just lift them off and each of the landing pads has these plastic caps that you can put in place so you don't have to remove them. Now that we've gone over some of the features of the roof rack, let's go ahead and show you how it installs. We have our rear roof rack assembly here.

We have our landing pads, our skyline towers, and then our adapter kit for the roundbars. Let's go ahead and start by assembling our adapter kit for our roundbars and get those set up. I'll take our tower here, we'll place our adapter piece in the center, and then press it into place like so. We'll do this for the other one, as well. Now we'll take our adapter for the actual bar, set that in the center, and then we'll turn it upside down, find our screw at the bottom here, then tighten it down until you hear the clicks.

Now, repeat this for the other tower. Now, we'll go ahead and slide our tower onto our bar like so. We'll do the same for the other side. Then we'll go ahead and put our end caps in place, and so they don't come back out. Next, we'll 00:02:20 focus on our actual landing pads. Go ahead and take our top cover piece off like so, and then we'll attach our actual rubber pad at the bottom.

This just presses into place. We'll repeat this for our other landing pad. Now, we'll move on to the roof of the vehicle and our rear fix point's going to be right here. We'll have to remove this plastic piece on the top. You notice at the top of the plastic piece here it has a little arrow facing forward, so you go to this point here with the flat plated screwdriver. Just push forward and it'll lift right out. The bolt you're looking for is on the inside here where we're going to make our connection point with this bolt that comes with the kit. Now, this landing pad kit does come with several bolts. Please refer to your instructions to find out which one goes with your particular vehicle. Now, go ahead and set our landing pad over where we're going to be installing our bolt. Then we'll install our black plastic washer, and then our bolt, and three metal washers. We'll take our included Allen tool, match it up with our mounting point, and tighten it down. Now, we'll repeat this for the other side. Now, we can set our crossbar into place. Now, we want to make sure that the front here is in the open position. This is so they can rest into our landing pads. We'll set them in the cradles, and then we'll determine the crossbar overhang with our crossbars, and then tighten those down as well. I'm going to go back and forth here a little bit, and then measure it out to make sure that it's even on both sides. That looks good. Then we'll tighten our bars to our towers, and to do that we'll tighten this bolt in the center here with our included torque tool until it clicks. We'll do this on the other side. All right. Our final step is to close up our towers which will lock them into place to our landing pads. Just push them in like so, and now we're ready to hit the road. There you have it for the Yakima Skyline Roof Rack System on our 2017 Kia Soul.

Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (80 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


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!


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.


Worked perfectly for the round bars!!


Added a bike and ski racks and all performed well


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.


Works great with round bars and Baseline towers.


Excellent, & your service was fantastic!


The roof rack is great. Solid.


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.


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


Used to mount my existing Yakima bar. Works well.


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.


Great service and super fast delivery. Thank you James!


perfectly adequate!


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


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.


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!


Fast and correct delivery

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