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Aero Style Crossbar T-Slot Fit Kit for Malone Kayak Carriers

Aero Style Crossbar T-Slot Fit Kit for Malone Kayak Carriers

Item # MPG6604
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This fit kit allows you to mount a Malone kayak or surfboard carrier to your roof rack crossbars with top channels. Electroplated hardware resists corrosion. 1-833-496-1390 to order Malone accessories and parts part number MPG6604 or order online at Free expert support on all Malone products. Guaranteed Lowest Price and Fastest Shipping for Aero Style Crossbar T-Slot Fit Kit for Malone Kayak Carriers. Accessories and Parts reviews from real customers.
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  • Reviews (21)
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  • Videos (1)
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  • Why etrailer?

Malone Accessories and Parts - MPG6604

  • Watersport Carriers
  • Roof Mount Carrier Parts
  • Adapters
  • Malone

This fit kit allows you to mount a Malone kayak or surfboard carrier to your roof rack crossbars with top channels. Electroplated hardware resists corrosion.


  • Fit kit lets you mount a Malone kayak or surfboard carrier to crossbars with top channels
    • Works with: MPG114, MPG116, and MPG117 (all sold separately)
    • Replaces clamp-on mounting hardware included with carrier
  • Channel nuts slide into crossbars' top channels and bolt to carrier
    • Perfect for vehicles with limited space between roof and crossbars
  • Electroplated hardware resists corrosion
  • Includes: 4 channel nuts, 4 M8 bolts, and 1 Allen wrench


  • Application: most crossbars with top channels
  • Bolt length: 1-7/16"
  • Nut dimensions: 1" long x 13/16" wide x 3/16" tall
  • Limited lifetime warranty

MPG6604 Malone T-Slot Mounting Kit for Aero Style Bars

California residents: click here

Video of Aero Style Crossbar T-Slot Fit Kit for Malone Kayak Carriers

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

Video Transcript for Malone Kayak Carriers Aero Style Crossbar T-Slot Fit Kit Review

Hi, everyone, it's Evangeline right here at etrailer. And today, we're taking a look at our Malone aero-style crossbar T-slot hardware kit, for your Malone kayak carriers, right here at etrailer. So, this is a hardware kit designed to work with your Malone kayak carrier. So I have our Malone Downloader right here, and I have the original hardware, which is a clamp that goes around your crossbars. But on the other side, I have the T-slot kit. So some reasons you might want to upgrade to this is, let's say you want to maximize your crossbar space.

You want to bring your kayak here out to the edge of your crossbar. In our case, if we have a tower we can't do so because that clamp goes behind the tower. But with the T-slot kit, we can bring this a little bit further out, making it easier to load and unload your kayaks. Also, if you have an extra large crossbar, maybe your hardware isn't long enough to fit around that crossbar, that's where the T-slot kit goes. I also personally think that it's easier to install since, instead of wing nuts, where you have to figure out the right balance on each side of your kayak carrier, this one, you just slide into your T-tracks, line it up to where you want it to go and use this hex tool to tighten it down.

Maybe the hardest part is just keeping track of your hex tool though, and making sure that you don't lose it. So notice how further out we brought our kayak carrier. This is especially useful if you have limited clearance over to the side of your vehicle and you need it further out so you can lift your kayak up. So with this, we can bring this all the way to the end of our crossbar and not be limited by where our tower is. So this comes as a set of four or a set of eight, and that depends on your kayak carrier.

So if you have a J-style kayak carrier like this, you'll usually just need the set a four because you get two for each carrier piece. Now, if you have, let's say, the Saddle Up Pro, or some of the saddle-style kayak carriers, which come as kind of like four pieces, then you'll need the set of eight to install this. So if you check out our product page for these adapter pieces, you can see which kind of kayak carriers this is compatible with. As for the install process, it's very simple. All you need is this hex tool, which comes with the kit.

So let's take a look at that process. So for the install process, you're gonna have your kayak carrier, and your kayak carrier's going to include the hardware to tighten it down onto your crossbars. Now, what you're doing here, is replacing that hardware with your T-track hardware. So you're gonna take off the old ones, and those will usually just have these wing nuts, as well as that plate that goes underneath. So just loosen that and take it that off. So notice how those we're kind of, like, vertical, where it goes from side to side, and what you want to do is replace it to a horizontal mounting style. So take those bolts out, and then get your hardware that's included with this kit. So in our case, that's going to be two of these. So one, two, and you have a bolt, a flat washer, and then your T-panel plate. So this is the Malone Downloader, so you only need the set that has four, because one, two for each kayak carrier. Now for the other Malone kayak carriers, like the Saddle Up Pro, you're gonna need the set that needs eight of these bolts. So get the bolts for your kayak carrier and then insert them horizontally. In the Malone Downloader, we're gonna come in from the top and one, two, get your bolts and pop them through. That's the bolt and the flat washer. Now holding onto your bolts from the top, you're gonna get your T-track plates and lightly screw them onto those bolts. Just very lightly, because you don't want too much clearance where it won't fit into your crossbars. Now get your kayak carrier, line those plates up to the T-channel on your crossbars, depending on your crossbars, you may need to push down the rubber strips or take off the end cap, but just slide those through. So you have this hex key included with your kit, and that's going to be used to tighten down your T-track bolts. So just tighten these down and they'll tighten the plate on the bottom. So once both bolts are tightened down, you can see that our kayak carrier is now secure onto our crossbar, and that's really all there is to the install of these adapters. So my final thoughts about this T-slot adapter kit is it's definitely an upgrade to the current clamps that you get with your kayak carriers. Aero bars are honestly a bit more modern compared to a traditional square or round bars. So in the old days, not every crossbar had those channels. So it's really nice to see how there's the ability to upgrade your older kayak carriers to accommodate those modern bars. Also notice how we're able to bring our kayak carrier out, making it easier to load and unload your kayaks, and you get more out of your crossbar space. This gives you more space to add even more accessories to your roof rack. So all in all, it's definitely worth checking out or adding to your current kayak carriers. This was a look at the T-slot adapter kit for your Malone kayak carriers, right here at etrailer..

Customer Reviews

Aero Style Crossbar T-Slot Fit Kit for Malone Kayak Carriers - MPG6604

Average Customer Rating:  4.9 out of 5 stars   (21 Customer Reviews)

This fit kit allows you to mount a Malone kayak or surfboard carrier to your roof rack crossbars with top channels. Electroplated hardware resists corrosion.


These were not fun to install on Tesla Model Y factory rack. I ended up using two screw drivers to push down the rubber while sliding to the side and found that to work the fastest.

The mounts aren’t exactly level with the aero bars, but they do feel secure.


These slot adapters fit perfectly on my Hyundai rack and were much more solid than the stock kit. I felt more secure on my four-hour-long road trip. I watched many eTrailer videos to discover the right products to help make my kayaking trips more enjoyable. Thank you eTrailer!


These work well & do the job properly. I'm a lot more comfortable using my JPro2s with these than without them.

It's VERY dumb that these aren't included when purchasing a Malone Roof Rack or Malone JPro2s. It's another way to charge extra for a necessary part.


This kit is convenient and works exactly as advertised. E-Trailer provided excellent communication and follow-up. The 5th star was withheld because of Malone, not E-Trailer. At the price of the Malone carriers, it should really have been included with the original packaging and not sold as an accessory. Components are high quality except that the square nuts could have been stainless steel or aluminum for better rust prevention.


I have ordered from etrailer before and have always received my order quickly. After this order, I quickly placed another. With etrailer it is never hard to find what I am looking for, then I normally receive it quickly.


never used with carrying a kayak as I switched my carrier from T-slot. were hard to push through the T-slot and started to rip some of the rubber strip. not much bolt beyond the square piece. All may have been okay but I never used it to hold kayak and kayak carrier on the aero crossbar.


Works great and easy to install! Also arrived quickly.


Great customer service! Reached out to ask about correct product and was contacted within 48 hrs. Product arrived promptly.


I ordered these with the 50" cross bar and T-Slot install kit and they work great on my 2009 Forester. Only complaint is that they whistle pretty noticeably when you get up to speed. Love that they fold down. Cradles are super stable with 2 kayaks on top. So far very pleased and would recommend these for certain. Almost 3 months on back order but E-trailer folks were good about updating me on the status along the way and that was appreciated.


Worked great for my Malone Kayak rack!


Rack works exactly as I expected it to. Easy to install and easy to remove when Im not using it












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