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Trunx Rooftop Cargo Box - 18 cu ft - Black
Trunx

Trunx Rooftop Cargo Box - 18 cu ft - Black

Part Number: TRX34FR
In Stock
$434.69
Roof Box
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56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction. Great Prices for the best roof box from Trunx. Trunx Rooftop Cargo Box - 18 cu ft - Black part number TRX34FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (156)
  • Q & A (0)
  • Photos

Trunx Roof Box - TRX34FR

  • Aero Bars
  • Factory Bars
  • Round Bars
  • Square Bars
  • Extra Large Capacity
  • Trunx
  • Medium Length
  • High Profile
  • Black
  • Passenger Side Access

56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction.


Features:

  • Cargo box mounts on your vehicle's roof rack to provide enclosed storage for your gear
    • Perfect for carrying sports equipment, camping gear, or luggage for up to 4 people
    • Great for most full-size SUVs and larger CUVs
  • Rear-opening lid lets you load and unload gear from the passenger's side of your vehicle
    • 2 Metal struts hold the lid open
  • Built-in lock secures gear in box and secures box to crossbars
  • Latches on front, rear, and driver's side of box ensure lid is completely closed
    • Can be locked with padlocks (not included) for added security
  • Tool-free installation with included U-bolts, hand knobs, and plates
  • Aerodynamic shape helps minimize wind noise and drag
  • Compact storage - removable lid nests in base when not in use
  • Durable, HDPE thermoplastic construction
  • Matte black finish
  • Made in the USA


Specs:

  • Application: most round, square, aero, elliptical, and factory crossbars
    • Maximum crossbar dimensions: 3-3/4" wide x 1-3/16" tall
  • Crossbar spread: 22"
    • Can be expanded to a maximum of 31" (requires drilling)
  • Carrying capacity: 18 cu ft
  • Weight capacity: 100 lbs
  • External dimensions: 56-1/2" long x 38-3/4" wide x 19" tall
  • Internal dimensions: 56-1/3" long x 38-1/3" wide x 18-1/3" tall
  • Box weight: 29 lbs
  • Limited lifetime warranty


Car Top Cargo logos

Mounting Diagram



TRX-18L Trunx Roof Cargo Carrier - Large - 18 cu ft - Black

Replaces Car Top Cargo CTC-18S





Customer Satisfaction Score:


Customer Reviews

Trunx Rooftop Cargo Box - 18 cu ft - Black - TRX34FR

Average Customer Rating:  4.3 out of 5 stars   (156 Customer Reviews)

56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction.

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Great product. Great price. Delivered on time.



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Excellent customer service and great pr iduct



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It was great



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Seems to be a good product for the pric e.



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Pretty cool carrier. Fast shipping! Works well with our car.



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Great product thus far. I haven't used it yet but will soon



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Your video helped make purchase easy.


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156
Show More Reviews

See what our Experts say about this Trunx Roof Box

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  • Can I Drill Holes into the Trunx # TRX34FR with a Crossbar Spread Longer than 31 Inches?
    I have a great rooftop box option for you, but we do not recommend drilling into the Trunx Cargo Box - 18 Cu Ft. # TRX34FR with a 32-1/2 bar spread. This is because the maximum allowed crossbar spread for the # TRX34FR with drilling is 31 inches apart. It is always strongly recommended not to exceed any limits put in place by the manufacturer because doing so can not only cause damage and void warrantees; it can also be dangerous. On top of that, we have not installed the # TRX34FR with...
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  • What Roof Rack System and Rooftop Cargo Box Will Work on Factory Flush Rails on a 2016 Lexus GX 460?
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  • Will The Thule Vector M Roof Cargo Box Fit My 2021 Mazda CX5 With Factory Roof Rack?
    The Thule Vector M Rooftop Cargo Box - 13 Cubic Ft - Titan Matte Gray # TH613201 will fit your crossbars just fine on your 2021 Mazda CX-5. Keep in mind, in order to allow your rear hatch to open properly there must be at least 47-1/2" from the center of the front crossbar to the line where the roof meets the hatch. It looks like your vehicle should have 48" from the from crossbar to the hatch so it should work find but it will be close; I recommend measuring to verify. In regard to the...
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  • What is the Widest Cargo Box that Will Fit Rola Roof Rack 59833 on a 2013 Mazda 3
    The spacing of the feet of cargo boxes will be narrower than the overall width of the cargo box. So basically what that means is you could use any cargo box so long as it has attachments that are compatible with the Rola crossbar dimensions and spread (spread being the center to center distance from one bar to the other). I believe the widest box we have is around 38-1/3 inches # TRX34FR.
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  • Replacement Mounting Hardware for Sears Sport SP-20SV Rooftop Cargo Box
    We have replacement mounting hardware for a Sears Sport SP-20SV cargo box, but the Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box # CTC-18PARTS is only a fit for the Trunx Rooftop Cargo Box # TRX34FR. The correct mounting hardware for the SP-20SV is the Replacement Hardware Kit for Searsbox Cargo Box # TH05603. We don't carry that cargo box, and we would be unable to confirm any specific fits, but I believe it is a universal fit so there's no reason to think it won't fit...
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  • What Roof Cargo Box that Can Fit Crossbar Spread of 30-1/4 Inches
    Since there isn't a safe way to modify or adapt the Sportrack roof box you have to fit the wider crossbar spread you have the best solution we have would be a new cargo box that is compatible with that spread. The most similar solution we have would be the Trunx Rooftop Cargo Box - 18 cu ft - Black # TRX34FR which can have it's mounting holes redrilled to fit your crossbar spread of 30-1/4 inches. This box also has the same cubic footage as the SportRack SR7095.
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  • Will the Inno Wedge 660 Fit on my Platform Roof Rack on My 2021 Toyota 4Runner?
    I have a great cargo box solution for you. Unfortunately, we do not have the exact measurement of the vertical underbelly of the front and rear of the Inno Wedge 660 - 11 cu ft. # INBRM660BK. However, for a solution that has absolutely no extra height added underneath that interferes with your roof on your 2021 Toyota 4Runner, I recommend the Trunx Rooftop Cargo Box - 18 cu ft - Black # TRX34FR. With the Trunx, you will not have to worry about vertical clearance on your roof and the Trunx...
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  • 2013 Toyota Highlander Factory Roof Rack Cargo Box Recommendation
    It looks like the OEM roof rack on your 2013 Toyota Highlander sits closer to your roof so you need to use a roof rack with smaller mounting hardware like the Trunx Rooftop Cargo Box # TRX34FR which uses smaller U-Bolts instead of the newer clamping mounting systems which are easier to use. The Trunx boxes are more on the cost-effective side of things and don't have the best quality so if you're wanting to use a nicer cargo box we need to use a different set of crossbars that give us more...
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  • Trunx Rooftop Cargo Box that Can Fit Cargo that Measures 39x12x11.5
    Due to the taper on the sides of the front of the Trunx Rooftop Cargo Carrier # TRX44FR it would not fit your cargo, so you'd need to go with the larger size part # TRX34FR.
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  • Solution for Using Cargo Carrier While Towing Sea Doo Trailer with 2015 Honda Odyssey
    As you mentioned in your question, the Curt Multipurpose Ball Mount # D210 is typically the best solution for what you are trying to do. With that being said, if the 2-1/4 inch drop on the ball platform won't allow you to tow the trailer level, it won't be the best product for your particular application. We do have dual hitch adapters like # D-192 that will allow you to still use your ball mount with a rise, but this type of product will also reduce the overall capacity of your trailer...
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  • Compatibility of CAM-Locks and Thule Boxes
    The CAM-Lock cores like part # CTC-CAMLOCK-18M-2874 are designed for the Trunx Rooftop Cargo Box, part # TRX34FR. As such, I cannot say if they will work with your Thule box or not. Thule has their own line of lock cores for their products. If you let me know which Thule core you have or which cargo box you have, I can help you find the correct replacement core and key.
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  • Is There A Rooftop Cargo Box That Is Big Enough For My Pit Barrel Jr. Smoker
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  • Recommended Roof Rack For Carrying A Cargo Box On A 2022 Kia Telluride With Flush Rails
    To get the Trunx Rooftop Cargo Box # TRX34FR mounted on the top of your 2022 Kia Telluride, I recommend going with the Rhino Rack Vortex Aero Crossbars # RRVA137B-2 and SX Series Legs # RR94DY. This will attach directly to the flush rails on your roof and give you 54" of space and 165 pounds of capacity. The Trunx cargo box will have absolutely no issue connecting to these bars and said bars are easily removed when not in use, so it is highly recommended.
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  • Two Large Roof Cargo Box Recommendations for a 2014 Toyota Sienna
    For your 2014 Toyota Sienna I recommend the Car Top cargo box # TRX34FR. This is an 18 cubic foot box that is far below your maximum budget. A comparable box in size from Thule or Yakima is at least twice as much so it is a good value. The Car Top box fits roof rack crossbars that are up to 3-3/4 inches wide and 1-3/16 inches tall. And fits a center to center bar spread of 22 inches as is but can be made to fit up to a 31 inch spread. It also has a no-tool assembly and installation. To...
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  • Recommended Roof Rack and Roof Box for 2020 Mini Countryman with Raised Side Rails
    The Yakima FlushBar Crossbars - Raised Side Rails and Tracks - Aluminum - Black - Qty 2 # Y00456-2 and Custom Fit Kit for Yakima FlushBar Crossbars - Raised, Factory Side Rails - Silver # Y00158 you were looking at will do a great job for your 2020 Mini Countryman with raised side rails. Yakima roof racks are good looking and durable, so they're a great choice on just about any vehicle; the FlushBar crossbars also help reduce wind noise that less aerodynamic bars create. I recommend adding...
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  • What Options Do I Have for a Mounting a Cargo Box and a Basket at the Same Time on My 2020 4Runner?
    I have a solution for you. Unfortunately, we do not currently carry crossbars that are long enough that are recommended for your 2020 Toyota 4Runner that will let you attach the Trunx Rooftop Cargo Box - 18 cu ft - Black # TRX34FR along with your 33-1/2 inch long x 49 inch wide cargo basket. Also, we currently do not carry any hard cargo boxes that will allow you to safely attach it to your basket. With that being said, if you remove your cargo basket, the Trunx cargo box will fit your...
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  • Replacement Handle Kit for Older Yakima Skybox Rooftop Cargo Box
    The replacement handle we offer for Yakima Skybox rooftop cargo boxes is Replacement SuperLatch Handle part # Y8880348 which is compatible with their cargo boxes produced from 2009 to the present. If your Skybox is older than that there is no longer a replacement handle kit. This is the correct part for the current version of the SkyBox 18, part # Y07336 that you referenced. If you decide to get a new cargo box and you want a cost-effective option with high capacity please consider the...
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  • Is There a Cargo Box That Will Fit Spare Tire on Subaru Outback
    The Thule Motion XT Alpine Rooftop Cargo Box part # TH629506 has internal dimensions of 33" wide x 11-1/4" tall so it will work great with your spare tire. If you're looking for more cost effective options I'd recommend the Trunx Rooftop Cargo Box part # TRX34FR or even the Yakima LoadWarrior Roof Rack Cargo Basket part # Y07070 with Spare Tire Carrier for Yakima Roof Cargo Baskets part # Y07076.
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  • Roof Cargo Box that Can Fit 2021 Toyota Sienna with OEM Crossbars
    The Trunx roof top cargo box part # TRX34FR can fit the crossbars of your 2021 Toyota Sienna but you would need to drill new holes in the box unless your crossbars can be placed right at 22 inches. Basically any roof cargo box will fit your vehicle but if you wanted something a little nicer yet in same price range the Malone Profile18s part # MPG910 would be a really great option. It has a sleaker design, opens from the side, and has easier to use mounting hardware as well.
    view full answer...
  • Will the Trunx Rooftop Cargo Box Fit for a 2017 Audi Q5 with 28 Inch Crossbar Spread
    The Trunx Rooftop Cargo Box - 18 cu ft - Black # TRX34FR comes setup for a 22" crossbar spread but can be expanded out to 31", so it will work for your 28" spread. You will need to drill new holes and the method that you've mentioned will work well to fit this to the crossbars on your 2017 Audi Q5.
    view full answer...
  • Can I Drill Holes in the Trunx # TRX34FR to Accomodate a 38.5 Inch Bar Spread?
    I have cargo solution for you. While it may technically work to drill holes for the mounting hardware of the Trunx Cargo Carrier # TRX34FR, the manufacturer does not recommend drilling holes to accommodate a crossbar spread over 31 inches. Since we do not know the exact Yakima crossbars you have on your roof rack, the Trunx carrier will clamp around the bars as long as they do not exceed 3-3/4" wide x 1-3/16" tall. I recommend measuring the height and width of your crossbars to make sure...
    view full answer...
  • Recommended Cargo Box for 2019 Toyota RAV4 That Doesnt Obstruct Roof Antenna
    In order to use the Thule Motion XT # TH629706 on your 2019 Toyota RAV4 you're going to need 47-1/2" from the center of your front crossbar to the crease where the roof and the hatch meet. However, it's going to be substantially less than that when it comes to the antenna, so using a long box like this likely isn't going to be the best solution because you're likely going to see some reception issues if it's covered. I recommend considering the Trunx Rooftop Cargo Box # TRX34FR, since...
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  • Are There Tie-Down Ratchet Straps I Can Use On My Trunx Rooftop Cargo Box For Extra Security?
    We do have tie-down straps for added security when mounting your Trunx Rooftop Cargo Carrier - 9 cu ft - Black # TRX44FR or Trunx Rooftop Cargo Box - 18 cu ft - Black # TRX34FR to the roof of your 2021 Jeep Grand Cherokee. I recommend getting Erickson Sliding Ratchet Tie-Down Straps w/ Safety Hooks - 1" x 14' - 400 lbs - Qty 2 # EM97JR which will suite your needs well. I have attached demonstration videos for you to check out.
    view full answer...


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Info for this part was:

Employee Andrew K
Test Fit:
Andrew K
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Aidan B
Video by:
Aidan B

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