bing tracking image
  1. Roof Box
  2. Yakima
  3. Large Capacity
  4. Aero Bars
  5. Factory Bars
  6. Round Bars
  7. Square Bars
Yakima SkyBox NX 18 Rooftop Cargo Box - 18 cu ft - Black Nano-Texture

Yakima SkyBox NX 18 Rooftop Cargo Box - 18 cu ft - Black Nano-Texture

Item # Y45AV
Our Price: $818.61
Roof Box
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
84 x 36 x 16-1/2. Free up space inside your vehicle and carry gear on your roof with this cargo box. NX nano-texture finish is scratch-resistant. Dual-opening lid provides easy access from either side of your vehicle. Clamps mount to most crossbars. Great Prices for the best roof box from Yakima. Yakima SkyBox NX 18 Rooftop Cargo Box - 18 cu ft - Black Nano-Texture part number Y45AV can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (12)
  • Q & A (0)
  • Photos

Yakima Roof Box - Y45AV

  • Large Capacity
  • Aero Bars
  • Factory Bars
  • Round Bars
  • Square Bars
  • Long Length
  • Dual Side Access
  • Yakima
  • Black
  • High Profile

84 x 36 x 16-1/2. Free up space inside your vehicle and carry gear on your roof with this cargo box. NX nano-texture finish is scratch-resistant. Dual-opening lid provides easy access from either side of your vehicle. Clamps mount to most crossbars.


  • Cargo box mounts on your vehicle's roof rack to provide enclosed storage for your gear
    • Perfect for carrying equipment and luggage for up to 4 people
    • Great for sedans, crossovers, and SUVs
  • Dual-side-opening lid offers easy access from either side of your vehicle
  • Same Key System (SKS) locks deter theft of cargo
  • Security latches ensure the lid seals shut and locks - key can't be removed unless lid is properly closed
  • Tie-down points on each clamp inside box let you use straps (sold separately) to secure your cargo
  • Simple, clamp-on installation to most crossbars with included torque tool
    • Clamps slide forward and backward to accommodate crossbar spread
  • Durable, lightweight ABS plastic with NX nano-texture finish is sleek and scratch-resistant
  • Made in the USA


  • Application: round, square, aero, elliptical, and most factory crossbars
  • Maximum crossbar dimensions: 3-1/2" wide x 1-11/16" tall
  • Crossbar spread: 24" - 36"
  • Carrying capacity: 18 cu ft
  • Maximum ski/snowboard length: 195 cm
  • Exterior dimensions: 84" long x 36" wide x 16-1/2" tall
  • Weight: 53 lbs
  • Limited lifetime warranty

Yakima SkyBox NX 18 Specs

Sturdy, Dual-Side-Opening Lid

yakima skybox dual opening

The SkyBox NX lid opens from both sides so you can easily access cargo from the driver's side or passenger's side of your vehicle. If you are parked on a busy street, in a tight parking lot, or even next to a campground picnic table, you have the option of opening the lid from the side of the vehicle that works best for you.

The fortified lid has an easy-access edge and spring-loaded hinges that allow for smooth, one-handed operation. Also, since the lid is extra-stiff, it helps reduce road noise and vibration. Finally, it has a nano-texture finish that helps guard against dings and scratches when you're on the road or when the box is in storage.

Built-In Security

yakima skybox security

The SkyBox has security latches on both sides to ensure the lid is completely closed and locked. This system prevents you from removing the key from the lock unless all 3 internal latches are engaged. That way, you are prevented from removing the key and driving off with an unlocked box. Also, the SKS lock core can be swapped out to make all your Yakima gear keyed alike.

Universal Clamp-On Mounting Hardware

yakima skybox clamp installation

The SkyBox installs with mounting clamps that slide along tracks in the floor of the box. These clamps fit most crossbar styles and they adjust for different crossbar spreads. To adjust the clamps, loosen the knobs with the included torque tool and slide them to the desired location. Then, tighten the knobs and close the clamps around your crossbars.

8007370 Yakima Sky Box NX 18 Rooftop Cargo Carrier - 16 Cubic Feet

Replaces 8007336

Installation Details Y45AV Installation instructionsAlternate Instructions Y45AV Installation instructions

Customer Satisfaction Score:

Customer Reviews

Yakima SkyBox NX 18 Rooftop Cargo Box - 18 cu ft - Black Nano-Texture - Y45AV

Average Customer Rating:  4.5 out of 5 stars   (12 Customer Reviews)

84 x 36 x 16-1/2. Free up space inside your vehicle and carry gear on your roof with this cargo box. NX nano-texture finish is scratch-resistant. Dual-opening lid provides easy access from either side of your vehicle. Clamps mount to most crossbars.


We are thrilled with our purchase! Ordering from etrailer was a pleasure and saved us over $160 in shipping costs. The packaging provided excellent protection and there was not a mark on our roof box. The Yakima SkyBox NX 18 is a welcome addition to our 2023 Jeep Grand Cherokee L. The fit on our vehicle was perfect and the 18 cu ft. capacity of the box is impressive. We were able to fit a 3 piece luggage set (Full Size suitcase, Carry On, and small roller bag) as well as a jogging stroller for our 3 year old. Highly Recommend A++


Installed Yakima SkyBox NX 18 as advertised. Fit vehicle (Outback with factory bars) perfectly. Careful not to open the clamps to much during first install. You might scratch or dent your roof. Would be good if 3/16 hex wrench was included for horizontal adjustment of bar clamps. Will see it the hinges and fasteners stand the test of time, but it looks like Yakima has a well thought out product.


This is my first box. I have been using bags previously. Man I wish I upgraded sooner. This was a breeze to install, even with the aftermarket Prinsu roof rack. Just had to slide some bars around, and I got a really nice low profile install.


I hate writing ratings, BUT, this product is great. The finish on the product is very impressive.

Delivery….the driver called several hours before delivery to give me an estimated delivery time, kept me posted and was wonderful. Etrailer products are great.

Highly recommend


Arrived Friday for Memorial Day weekend. Was looking forward to using it for a camping trip but, could not get either side to unlock. Tried both keys numerous times. No luck. Have to wait until Tuesday to call customer service. Not Happy.

Etrailer Expert

Katrina B.


I am sorry that this was not working for you! For future reference, we definitely have a team of Customer Service Representatives that work even through the holidays. So call us anytime and we can work on getting you taken care of as soon as possible!


I consulted with Josh to confirm my order and discuss some of the details on fitment. He answered them all! Skybox NX 18 arrived on time and in perfect condition. 2023 Hyundia Santa Fe Hybrid Limited.


Safely delivered without damage. Lauren at made this a very smooth transaction! Thank you!


3 things- & I wish they had a 4.5 star option… I would have given that .

#1- this is the BEST roof box( for me )I have ever seen/ owned and I’ve had Thule pulse and Force boxes and other Yakima’s . I like the textured finish - looks rugged and speak at the same time. The metal tubular frame on interior really helps with the rigidity of the ABS plastic. The lever opening and closing is very nice especially because it clicks when closed so your not jamming the key hoping all guides are lined up like in the Thule pulse.. also the squareish lines match my 2nd gen Tundra wonderfully

#2- etrailer has always been a Go Too for me mainly due to their excellent customer service . Their response time is excellent and the team is very knowledgeable and eager to help.

#3- only reason for the non 5 star review is shipping took 7-8 days longer than expected … which threw a wrench in personal travel plans… I ordered this item through etrailer and not Yakima due to expected delivery date… didn’t work out. However the item did arrive in excellent condition when it arrived .

If you’re reading this review to see if The Sky Box NX is worth the money then hell yes it is …& would I purchase it again through etrailer… probably ;) they are great people and feels good to support them.


Fast shipping. Works great on a 2023 Pa thfinder


Great service




See what our Experts say about this Yakima Roof Box

  • 2023 Honda Odyssey Raised Rail Roof Rack Recommendation
    I recommend going with the Yakima TimberLine FX Roof Rack # Y77UV for the raised rails on your 2023 Honda Odyssey. These are perfect because they give you that factory look but Yakima makes some of the most sturdy roof rack crossbars on the market so you can be confident they are up to the task. If you don't already have a cargo box I recommend checking out the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV because it has a sleek and modern design backed by ease of use. I've attached a...
    view full answer...
  • Will the Yakima SkyBox NX 16, part # Y95AV, Cargo Box Work on My 2009 Nissan Murano
    Yes, the Yakima SkyBox NX 16 Cargo Box, part # Y95AV, has been confirmed by Yakima to fit on the factory cross bars of a 2009 Nissan Murano. If positioned correctly on your roof you should not have to worry about your trunk interfering with this box, the angle of the back of the box also helps give you a little more clearance for when your trunk is opened. You can confirm this fit by measuring from the center of the front crossbar back to the line where the hatch meets the roof. If this...
    view full answer...
  • Inside Dimensions of the Yakima SkyBox NX 18 Rooftop Cargo Box
    Getting the inside dimensions of the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV was no easy task, I started by contacting the manufacturer but they did not have the inside specs on any of the newer boxes like the NX line. So then we had to pull a carrier and take the measurements, the biggest issue is that there are some obstructions inside of the box (i.e. latches, lift arms, so on...) that limit how accurate the measurements can be taken. I have included the measurements the best...
    view full answer...
  • Does the Yakima Skybox NX 18 Come w/ a Cargo Net?
    The Yakima SkyBox NX 18 item # Y45AV, does not include interior tie down straps. If you want a cargo net, you could use the Erickson Net item # EM01016.
    view full answer...
  • How High Above The Crossbars Will The Yakima SkyBox NX 18 Rooftop Cargo Box Be?
    Hello Ari. The Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV is 16-1/2" tall. The clamps are more or less flush with the bottom of the box. Meaning the box itself will add 16-1/2" of height to your Subaru. With 18" of clearance in your garage you should be good. Still, I do suggest that you use caution the first time you pull the vehicle in or out of the garage with the box on it, just to be 100% safe and 100% sure that it will fit without any problems.
    view full answer...
  • Premium Roof Box Option for a 2018 Toyota Highlander with Factory Roof Racks.
    You'll want to take two measurements prior to purchasing a roof box, as the fit is somewhat unique to each vehicle. To get your available clearance, you'll want to measure from the center of the front crossbar to the line where your roof meets your rear hatch. This distance is your available clearance. The second measurement is the distance from the center of the front bar to the center of the rear bar. This distance is your Crossbar Spread and is the distance that you'll want to make...
    view full answer...
  • Does Yakima SkyBox NX 18 Fit 2024 Mazda CX-90 Factory Crossbars
    I just checked directly with Yakima for you and can confirm that yes, the factory crossbars will allow you to use the SkyBox cargo box you asked about, which is the following part number: - Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV You made a really nice choice with the NX 18 # Y45AV as it is super easy to use by simply clamping onto your roof rack, comes with locks to keep it safe on your roof, and opens from both sides for easy access to your cargo.
    view full answer...
  • Do Yakima SkyBox Roof Cargo Boxes Come with Grease In the Lock Core Housing
    The Yakima SkyBox cargo boxes, like the NX 18 Rooftop Cargo Box # Y45AV, will come with grease in the lock core housing according to my contact at Yakima. She also did point out that the dry graphite lubricant is good to use on the external part of the lock core as well since it doesn't attract dust and dirt.
    view full answer...
  • Which Size Roof Box Fits 2024 Mazda CX-5
    I'm assuming you're talking about the Yakima SkyBox based on what you were looking at. All three sizes will technically fit your 2024 Mazda CX-5. However, you may not be able to open the rear hatch depending on the size/model. The only way to be sure is to measure your roof rack to find out. The measurement you need is the distance between the center of the front crossbar and the line where the roof and hatch meet. Once you have this you can check it against the required measurements for...
    view full answer...
  • Picking Between Yakima NX16 and 18 for Toyota Highlander
    If both would give you enough storage space I would go with the smaller Yakima Skybox NX 16 part # Y95AV over the 18 version part # Y45AV. Having a bigger box than needed doesn't really gain you anything since it will be bigger to store, a little heavier, more expensive, and potentially be louder on the road so I would go with the NX 16. Unless you t think you'd outgrow it.
    view full answer...
  • What is the Most Comparable Yakima Cargo Box to a Thule Motion XT XL?
    The Yakima SkyBox NX 18 Rooftop Cargo Box item # Y45AV would be the closest comparable option to the Thule Motion XT XL item # TH629806.
    view full answer...
  • Will Yakma Skybox NX 18 Fit 2023 Toyota 4Runner with Factory Roof Rack
    The Yakima Skynox NX 18 part # Y45AV can be used on your 2023 Toyota 4Runner but since your OEM crossbars sit so close to the roof you would have to go with an aftermarket crossbar set like the Malone # MPG215 which would put your bars up high enough to prevent interference there.
    view full answer...
  • How to Tell If Yakima SkyBox 18 Will Fit with 2023 Subaru Outback Wagon Crossbars and Hatch
    Yes, the Yakima SkyBox 18 Rooftop Cargo Box # Y07336 will fit the crossbars on your 2023 Subaru Outback Wagon just fine and you just need to measure for the 57" clearance (see diagram) to ensure the rear hatch can open. If you have less than 57" then you'll want to go with a different box like the Yakima SkyBox NX 18 # Y45AV which has the same amount of cargo space but only needs 50" for that clearance measurement.
    view full answer...
    Image 1 for
  • Roof Rack and Cargo Box Recommendation for 2019 Hyundai Kona w/ Flush Mounted Rails
    Sometimes cars won't ever have a trailer hitch available so assuming you are looking to carry bikes or cargo on a 2019 Hyundai Kona EV you can still do so with a roof rack. So long as your '19 Kona EV has flush-mounted rails that run front to back (as opposed to a naked roof with no rails at all on top) the best option is from Rhino-Rack: - Rhino-Rack RVP Roof Rack for Fixed Mounting Points # RR23QJ To carry cargo atop your Kona you can use a rooftop cargo box and a great option is the...
    view full answer...
  • Rooftop Cargo Box Fit For 2019 Toyota Sienna For 78 Inch Long Gazelle Gazebo
    First, thanks for the kind words, it is genuinely appreciated. And we do have a solution for a rooftop cargo box for your 2019 Toyota Sienna so you can carry your 12” x 12” x 78” Gazelle gazebo, though the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV will be juuuuuuuuuuust shy of being able to. Reason for that is the max length it can carry is 76-3/4" which is a bit too long for the 78" you mentioned needing. BUT....there is a similar box that meets all your criteria, from Thule: - Thule...
    view full answer...
  • Replacement Hinge Needed for a Thule Force XT XL Rooftop Cargo Box
    The replacement hinge for the front of your Thule Force XT XL Rooftop Cargo Box # TH6358B is part # 1401495600 if you're talking about the lifter hinge that helps keep the lid opened up. If you're talking about the hinge that keeps the lids connected together then those unfortunately are no longer available so you'll either need to look for some from a used parts store or worst case we'll need to get you set up with a new cargo box. For a new box you can either use the same box or for...
    view full answer...
  • Comparing Yakima SkyBox and SkyBox NX Roof Cargo Boxes
    The Yakima SkyBox 18 Rooftop Cargo Box # Y07336 has a Black Carbonite finish and is an older model of SkyBox while the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV has a Black Nano-Texture and features a more modern style that matches better with current-gen vehicles. The NX also has a removable knob for the mounting hardware so the floor of the NX doesn't have as much bulk in it. I really like the NX redesign so I recommend going with that over the older SkyBox style. I'm attaching...
    view full answer...
  • 2023 GMC Acadia Roof Rack and Cargo Box Recommendations
    The absolute best roof rack for your 2023 GMC Acadia with the bare roof is the Yakima BaseLine FX because it has a nice factory look but is also more robust so you get a great looking system that's also stronger. Here are the parts you'll need: - BaseLine FX Crossbars # Y59UV - Fit Kits # Y06138 and # Y06132 - Lock Core Kit # Y07204 (optional) If you were planning on using this for a cargo box then I highly recommend the Yakima SkyBox NX 18 # Y45AV. I really like this box because it...
    view full answer...
  • Roof Rack and Cargo Box Recommendations for a 2024 Chevy Equinox
    Hey Rob, thanks for reaching out! I really like the Thule WingBar Evo Roof Rack System # TH93AG combined with the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV for your 2024 Chevy Equinox naked roof, because they are both really simple to install and they will compliment the design of your vehicle. Both the Thule and Yakima brands are higher-end product lines so you can be confident that you'll be getting kits that will live up to the potential. I will say that none of the roof cargo...
    view full answer...
  • Roof Rack For 2023 Mazda CX-30 For Yakima SkyBox NX 18
    It does! The crossbar spacing on your 2023 Mazda CX-30 will indeed allow you to use and fit the Yakima SkyBox NX 18 Rooftop Cargo Box # Y45AV. Then since you mentioned not having a roof rack, the correct fit for a naked roof on your '23 CX-30 is made up of the following: - Yakima JetStream Crossbars # Y00425 - SkyLine Towers # Y53TR - Landing Pad 22 # Y00248
    view full answer...
  • Recommended Cargo Carrier for a 2016 Honda CR-V
    For your 2016 Honda CR-V I recommend going with the Thule Force XT L Rooftop Cargo Box # TH6357B. This cargo carrier in my opinion hits all the wickets you're after. It's shorter measuring only 74-3/4" long overall so you should not run into any issues since it isn't over that 80" threshold you mention, it has 16 cubic feet of storage space, and is the lightest among all of the 16 cu.ft cargo boxes on your list weighing only 41-lbs. The Thule Motion XT Rooftop Cargo Box # TH629706 is...
    view full answer...
  • Installing A Yakima Skybox Y45AV On A 2023 Dodge Durango
    The clamps on the Yakima Skybox # Y45AV install into an adjustable channel on the bottom of the box. You will be able to install them 30" apart, but there is not a specific fixed location for the clamps. The best way to determine clearance is to open the rear hatch, and measure from the center of the front crossbar, to the line where the roof and the hatch meet. If you have at least 50" then the box will fit on the roof in the farthest forward position without contacting the rear hatch....
    view full answer...
  • Will Yakima Skybox NX 18 Fit 2022 Subaru Outback with OEM Crossbars
    Yes, I checked with Yakima and the SkyBox NX18 part # Y45AV that you referenced does fit the OEM crossbars of your 2022 Subaru Outback that has OEM crossbars.
    view full answer...
  • 2024 Ford Bronco Roof Rack and Cargo Box Recommendations
    To get a robust and factory looking rack on your 2024 Ford Bronco I recommend the Yakima TimberLine FX Roof Rack for Raised Side Rails # Y48UV. This clamps to the raised rails but has the crossbars ending in the legs so you get that sleek OEM look but without the thin OEM crossbars that don't always feel sturdy. For a cargo box I recommend checking out the Yakima SkyBox NX 18 # Y45AV because it has a Black Carbonite finish that matches matte black finishes on vehicles, plus it has more...
    view full answer...

< Previous

Do you have a question about this Roof Box?

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Bethann B
Updated by:
Bethann B
Employee Daron K
Edited by:
Daron K
Employee Ed W
Test Fit:
Ed W
Employee Evangeline M
Test Fit:
Evangeline M
Employee Alex H
Written by:
Alex H
Employee Thomas T
Video by:
Thomas T
Employee Charles A
Video by:
Charles A
Employee Samuel H
Video by:
Samuel H

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.