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Crossbar Adapters for Lockrack Watersport Carrier - Qty 4

Crossbar Adapters for Lockrack Watersport Carrier - Qty 4

Item # 339LRADPTR
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Lockrack Adapters Accessories and Parts - 339LRADPTR
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This adapter kit allows you to mount a Lockrack watersport carrier to your roof rack crossbars. Includes 4 adapters and mounting hardware. Call 800-298-1624 to order Lockrack accessories and parts part number 339LRADPTR or order online at etrailer.com. Free expert support on all Lockrack products. Guaranteed Lowest Price and Fastest Shipping for Crossbar Adapters for Lockrack Watersport Carrier - Qty 4. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (7)
  • Q & A (7)
  • Videos (1)
  • Photos
  • Why etrailer?

Lockrack Accessories and Parts - 339LRADPTR

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

This adapter kit allows you to mount a Lockrack watersport carrier to your roof rack crossbars. Includes 4 adapters and mounting hardware.


  • Adapter kit lets you mount Lockrack watersport carriers to your roof rack crossbars
  • 4 Adapters and mounting hardware included


  • Application: round, square, aero, elliptical, and most factory crossbars
  • Minimum dimensions:
    • Overall: 5" long x 2" tall x 2" deep
    • Inner-dimensions: 2-1/2" x 7/8" tall
  • Maximum dimensions:
    • Overall: 5" long x 2-1/2" tall x 2" deep
    • Inner-dimensions: 2-1/2" x 1-1/2" tall
  • 1-Year limited warranty


LRADPTR Lock Rack Square Bar Adapter

Video of Crossbar Adapters for Lockrack Watersport Carrier - Qty 4

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

Video Transcript for Lockrack Watersport Carrier Crossbar Adapters Review

Speaker 1: Today we're going to be taking a look at the crossbar adapters for the Lockrack watersport carrier, part number 339LRADPTR. This comes in a quantity of four. The Lockrack crossbar adapters help you solve the problem that if you get a new vehicle that has a factory roof rack, or if you have a secondary vehicle with square bars like you see here, that you can convert it from that channel-mount to this mount here, so it can be utilized with other multiple vehicles, or your new vehicle. Right now we have them on square bars as you can see here, but these will also work with round bars, elliptical bars, aero bars, as well as factory roof racks as well.It is padded where it makes contact with your bars to ensure that they don't get scratched or damaged once being installed. They simply clamp down around those existing bars and come with the hardware also to tighten these down. These will work with most Lockrack watersport carriers that we carry to convert the channel mounts to this particular clamp style mount.

The clamps themselves measure 5" long by 2" tall by 2" deep. The inner dimensions are 2-1/2" by 7/8" tall, and this does have a one-year limited warranty.Now that we've gone over some of the features, let's go ahead and show you how these clamps actually install. Right now we have these set up in the regular channel mount fashion, like so. The first step is to remove the plastic spacer here. Then we'll take our clamp and our included tool.

We're going to completely remove one of the screws here, and just loosen the other side. You come to the side with this top mount here, remove the pad, take that channel mount portion, we'll push that through like so. Replace the pad, and now we're ready to mount it onto our base here, so again you line up the holes at the base, reinstall the screw, then take our included tool and tighten that down. We'll repeat this for the other side, and then we can set this onto our roof.Try and keep it even with the base that we have at the front of the vehicle, then bring it up, close it around. Then we'll take our nut, and get that loosely installed as well, like so.

Let it fall, and take our included Allen tool, and start tightening that up. Once we get it even with the other side we'll start tightening it down evenly as well. Final step is well put in our arm, just slightly as you would for the regular install. And now we're ready to load our gear, and hit the road. There you have it for the crossbar adapters for the Lockrack watersport carriers..

Customer Reviews

Crossbar Adapters for Lockrack Watersport Carrier - Qty 4 - 339LRADPTR

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

This adapter kit allows you to mount a Lockrack watersport carrier to your roof rack crossbars. Includes 4 adapters and mounting hardware.


I used your crossbar adapters to mount a Rotopax universal plate to fit a 4 gallon Rotopax fuel tank to the stock roof rack on my LX470. I had to drill extra holes in the universal plate to access the hex bolts on the adapters, but the end result is a rock solid mount. I'm now preparing to mount a second plate and tank on the driver's side. I'm very satisfied with the product. Thank you.


Used this and some rubber gaskets to get my Thule kayak racks to fit on my subaru’s crossbars. Took my kayaks from MD to RI and back without issue. The order came quick and I had no issues with etrailer.com


I modified these to work with a generic brand rooftop cargo basket. So far, working great.


So far I love it. I did it’s job that I needed for it To do





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Info for this part was:

Employee Zack K
Installed by:
Zack K
Employee Andrew K
Video by:
Andrew K
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Daron K
Edited by:
Daron K
Employee Jessie B
Written by:
Jessie B

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