Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box

Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box

Item # CTC-18PARTS

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CTC-18PARTS - Mounting Kit Car Top Cargo Roof Box
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This kit replaces the mounting hardware for your Car Top Cargo roof cargo box. Includes 4 U-bolts, 4 spacers, and 8 knobs. Call 800-298-8924 to order Car Top Cargo accessories and parts part number CTC-18PARTS or order online at etrailer.com. Free expert support on all Car Top Cargo products. Guaranteed Lowest Price and Fastest Shipping for Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box. Accessories and Parts reviews from real customers.
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  • Reviews (31)
  • Q & A (18)
  • Videos (1)
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Car Top Cargo Accessories and Parts - CTC-18PARTS

  • Roof Box
  • Mounting Kit
  • Car Top Cargo

This kit replaces the mounting hardware for your Car Top Cargo roof cargo box. Includes 4 U-bolts, 4 spacers, and 8 knobs.


Features:

  • Replaces the mounting hardware for Car Top Cargo roof cargo boxes
    • Fits model CTC-18S
  • Includes 4 U-bolts, 4 plates, and 8 hand knobs


CTC-18PARTS Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box







Video of Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box


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




Video Transcript for Review of Car Top Cargo Roof Box Parts - Mounting Hardware - CTC-18PARTS

Ellen: Hey everyone. I'm Ellen here at etrailer.com. Today, we're taking a look at the replacement mounting hardware for Car Top Cargo Roof Cargo Box.This is going to be that attachment hardware to get your roof cargo box secured to your roof rack on your vehicle. This can also work with several different older style roof cargo boxes out there, so I'm going to go over the measurements here to make sure that this is going to be a fit for your application.Basically, what comes in our kit, we'll get our four straps, or our four just flat brackets and then four of these . almost like a parentheses brackets shaped bracket. It's got that little notch there.

It'll work with several different bar styles, if it's round, square, elliptical, or anything else. And then we'll get our eight wing knobs or wing nuts to tighten those down. There are also four clips that come with it, just little spring safety clips.As far as the measurements go for our plates, the overall length for each of these is 5", going from that rounded end to rounded end. The distance between the mounting holes center to center is 4". The width is right at 1" and the thickness is about 1/8".

The diameter of those holes for each of our brackets is about 5/8", or excuse me, 5/16", maybe just under, or just about 1/4", which matches up, of course, with our U-bolts. The outside distance for each of these is going to be 4-1/4", so from outside edge to outside edge. The distance between these center to center, though, is going to be 4", which again matches up with our plate there. The diameter of those U-bolts is about 1/4". The length here on the side is about 1-3/4".

The overall height or depth, however you want to look at it, is about 2-1/2", going from the end of that little notch to the end of the threads. And then our wing knobs are about 1" tall and about 1-1/4" or 1-1/2" at the longest point.Now, this fits the Car Top model CTC-18S, but again, it does fit several other cargo boxes out there so it can be used for other applications. You just want to be sure that whenever you're tightening these, this hardware down on your roof, that you kind of go back and forth to make sure that everything's pulled down appropriately. You want to make sure that you kind of alternate each, from one to either side, so that you're not tightening one side more than the other.But that's basically going to do it for our look at the replacement mounting hardware for Car Top Cargo Roof Cargo Box.


Customer Reviews

Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box - CTC-18PARTS

Average Customer Rating:  4.8 out of 5 stars   (31 Customer Reviews)

This kit replaces the mounting hardware for your Car Top Cargo roof cargo box. Includes 4 U-bolts, 4 spacers, and 8 knobs.

- CTC-18PARTS
by:

Awesome product. Thank you for such fast service. 592393



- CTC-18PARTS
by:

This mounting hardware was exactly what I needed to attach my 1990s era Yakima Space Cadet to my car. 528119



- CTC-18PARTS
by:

I needed to attach a luggage carrier to the top of my vehicle more securely than just straps around it. After measuring the holes in the car top carrier I ordered this attachment. The pkg arrived on time and was reasonably priced for the strength it provided. While the “u” bracket wasn’t shaped like the rails (rails are flat rather that pointed), the bracket still fit on my 2013 Ford Edge rails. Car top carrier was secure. No whistling and other noise that the straps would have made was heard. I am a female, age 75. I will order from etrailer again. 672439



- CTC-18PARTS
by:

Great customer service and speedy delivery of the parts I needed. Thanks! 413192



- CTC-18PARTS
by:

Bought these for an older sears sv20 cargo topper. They fit the holes on the topper just fine. 646485



- CTC-18PARTS
by:

these fit my old (20+ year old) yakima rocket box just fine. A good replacement for the originals especially if your box is left on your vehicle. 542978



- CTC-18PARTS
by:

Exactly what I needed for my older Karrite cargo box. I had been using U-bolts from the hardware store with regular nuts to secure them. This new hardware makes installing and removing the box so much easier. Etrailer was also awesome making the purchase quick and easy. Super fast shipping as well. Keep up the great work! 595550



- CTC-18PARTS
by:

Ordered this for a replacement of missing mounting hardware for an older model Yakima RocketBox. With minimal modification to the box (4 new holes), the hardware fits just fine. Taking it for a test ride today, but so far so good. 477304



- CTC-18PARTS
by:

Ordered this kit to attach an old X-Cargo carrier to the top of my Mazda CX-5. The kit worked perfectly for this application, and I was so happy that I didn't have to hunt for U-bolts and nuts from a hardware store. Two thumbs up! 704525



- CTC-18PARTS
by:

Great universal brackets for my Thule car topper! Thanks 693013



- CTC-18PARTS
by:

This kit worked great for my Sears X Cargo carrier for the 1992-2000 series. I also purchased the replacement keys which also was a perfect match for the cargo box. I purchased the factory made crossbars to mount this cargo box. 682793



- CTC-18PARTS
by:

We needed new hardware for our XCargo car-top carrier to take our daughter's stuff back to college later this month. Etrailer.com delivered the right parts in time. And etrailer's customer service was excellent. We're very pleased. 679158



- CTC-18PARTS
by:

Fast shipping 673214



- CTC-18PARTS
by:

Soooo, we forgot we had our car-top carrier on when parking in a garage in Ybor City, FL. We stopped, pulled it off and in the process, lost a few pieces. When I Googled replacement parts, etrailer was one of the first to come up and they had exactly what we needed at a great price! Easy ordering, and quick delivery (I paid extra for 3 day shipping). No issues, very east website to navigate, will definitely use them again for anything we might need regarding our 28’ travel trailer! Thanks! 671637



- CTC-18PARTS
by:

Fast service,shipping and great prices 669928



- CTC-18PARTS
by:

Great ! Worked out just great !’ Reasonable price! Fast delivery! Very happy! Thanks!!!! 669125



- CTC-18PARTS
by:

Item shipped fast (granted I chose the pricier 3 day option). Parts worked great on my 15+ yo Yakima Rocket Box. 669080



- CTC-18PARTS
by:

The item came on time, seems well made, and was exactly as described. Haven't used it yet, but will sometime soon. 666501



- CTC-18PARTS
by:

Excellent service. Ordered and received it much faster than I expected. Accurate order received. 653081



- CTC-18PARTS
by:

They worked perfectly! Thank you 611444



- CTC-18PARTS
by:

good quality, fast shipping 606342



- CTC-18PARTS
by:

They did what they were supposed to do. And they were here on schedule. Not much more to say about a few u bolts 594468



- CTC-18PARTS
by:

On time and correct product. Thanks 588177



- CTC-18PARTS
by:

Parts delivered in a timely fashion via the postal service. First time doing business with this company and am completely satisfied. 585847



- CTC-18PARTS
by:

Just what I needed fit perfectly, Fast shipping 557822



- CTC-18PARTS
by:

Thank you a really great job. 550006



- CTC-18PARTS
by:

Received item quickly and worked like a charm! 518857



- CTC-18PARTS
by:

ok box is still on roof 448544



- CTC-18PARTS
by:

Excellent value and quality for price.. cheaper than what is sold on [other online retailer] even with shipping cost... 442496



- CTC-18PARTS
by:

Thanks for the quick response sending the replacement parts! Very much appreciate! 414051



- CTC-18PARTS
by:

Great!! 375962


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Ask the Experts about this Car Top Cargo Accessories and Parts

Do you have a question about this Accessories and Part?


  • U-Bolt Replacements for Roof Mounted Cargo Box Ski Rack
  • The inch equivalent for the metric measurements you gave are 3.54331 inches by 3.14961and 0.23622 inches diameter and unfortunately we don't have those specific measurements. We have the Thule # TH09243 which is 4 inches wide and 2 inches deep. We also have the Car Top Cargo # CTC-18PARTS which is about 4 inches wide and 1-5/8 to 2-1/2 inches deep. I've attached photos to assist. If you have a cargo box, you may need to drill new holes and use RTV gasket maker # LT37467 to seal...
    view full answer...

  • Center to Center Spacing of the Car Top Kit U-Bolt for Older Yakima Cargo Box
  • The U-Bolts that come in the Car Top Kit # CTC-18PARTS and the Rhino-Rack Kit # S280 measure 4" apart on center. It is possible to use a mounting kit like this on an older Yakima box if there isn't anything else available although you may need to drill new holes and seal the old ones with something like part # LT37467. There may be a replacement mounting kit from Yakima depending on what you have. If you can let me know the name of your Yakima cargo box and/or send me a picture of...
    view full answer...

  • Replacement Mounting Hardware for a Sears Sport 20-SV Cargo Box
  • They do not make any specific replacement parts for the Sears Sport 20-SV anymore however, you can certainly make the Replacement Mounting Hardware part # CTC-18PARTS work for you. The holes may not align perfectly but you can always drill new ones and use part # LT37467 to cover the old ones. This is a very popular option for the older Sears cargo boxes like what you have.
    view full answer...

  • Alternate Mounting Hardware for Yakima SpaceBooster Cargo Box on 2015 Subaru Outback Wagon
  • It is not a huge deal to add a few new mounting holes to the bottom of an ABS plastic cargo box like the Yakima SpaceBooster. A cordless drill and appropriately-sized drill bit will make short work of it. I would avoid using a heated implement for making the holes since it could be a bit messy and could make it harder to control the size of the hole. The things to keep in mind are that you want to drill no more additional holes than absolutely necessary so measure, check and re-check....
    view full answer...

  • Thule Evolution 1200 Mounting Hardware
  • We have replacement mounting hardware for the Thule Evolution 1200 with the part # TH05820 but the kit you referenced would not fit.
    view full answer...

  • Car Top Cargo CTC-18S Mounting Hardware Availability
  • The mounting hardware for the Cargo Box part # CTC-18S that you referenced is available separately as part # CTC-18PARTS. For your old Sears X cargo roof box, I recommend the Replacement Hardware Kit for Sears box or Thule Evolution Cargo Box # TH05820. Since this is designed for your box this would be the better option.
    view full answer...

  • What Are Dimensions of U-bolts of Replacement Mounting Hardware # CTC-18PARTS
  • I attached a picture that has the dimensions of the u-bolts that come with the # CTC-18PARTS. The inner width is 3-3/4 inches. We have the Thule # TH09243 which is 4 inches wide and 2 inches deep.
    view full answer...

  • Dimensions of U-Bolts in Replacement Mounting Hardware Kit for Car Top Cargo Roof Boxes CTC-18PARTS
  • The Replacement Mounting Hardware Kit for Car Top Cargo Roof Cargo Boxes, part # CTC-18PARTS, includes u-bolts that measure 3-3/4-inches inside width and 2-1/2-inches depth measured at the center detent. These and other dimensions are shown on the picture I made for you after I measured the u-bolt. The threaded portion of the ends measures 1-1/4-inches.
    view full answer...

  • Mounting Hardware Kit for Sears X Cargo Roof Mounted Cargo Box
  • I am not aware of any direct fit mounting hardware kits available for the Sears X Cargo Roof Mounted Cargo Boxes due to their age. As you mentioned, you will need to drill holes in order to mount it onto a set of crossbars. The u-bolts kits are universal, not model specific. I recommend the Mounting Hardware for Car Top Cargo Roof Cargo Box part # CTC-18PARTS if you have aero crossbars.
    view full answer...

  • Mounting Hardware for 2002 Yakima Rocketbox Cargo Box for Installation on 2014 GMC Yukon
  • You can still get the box up on your Yukon but you'll have to do a little bit of customizing in order to adapt an alternative install kit. I checked with my contact at Yakima about hardware options for mounting your 2002 Rocketbox on your 2014 Yukon. Unfortunately in the case of your 2002 Rocketbox Yakima is completely out of their hardware kits. Since the box is now out of warranty you lose no warranty coverage by modifying it slightly. A cost-effective option is to use replacement...
    view full answer...

  • New Hardware for Cargo Box That Does Not Fit Current Crossbars
  • It would be great if we had a way to guarantee you can essentially elongate your Thule Alpine rooftop box but there is no replacement hardware which is designed for that purpose and I would not be able to confirm hardware that can. If you are willing to drill new holes at whichever points will allow you to mount the box I recommend going with simple U-bolts, the Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box # CTC-18PARTS which is just U-bolts, plates and hand knobs. You...
    view full answer...

  • Replacement Mounting Hardware for Thule Sidekick Cargo Box
  • We have what you need, but the part # CTC-18PARTS is not it. You instead would want the part # TH02943 for U-bolts, part # TH03918 for brackets, and then # TH04877 for replacement wing nut.
    view full answer...

  • Alternate Mounting Hardware for Karrite Rooftop Cargo Box
  • Thule made the Karrite cargo boxes for Sears and since the original Thule mounting parts are no longer available you can use a similar u-bolt kit # CTC-18PARTS from Car Top Cargo. You might need to drill a few new holes in the box to fit the alternate hardware; any extra holes can be sealed up using RTV High-Performance Silicone Gasket Maker # LT37467. A handy item to use with a rooftop cargo box is the lightweight folding step # CAM43672 from Camco.
    view full answer...

  • Replacement Plastic Knob for Cargo Carrier Mounting U-Bolt
  • The hand knob found in the Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box # CTC-18PARTS are not available individually. We do have the Replacement Wingnut for Thule Cargo Boxes # TH04877 if your u-bolts are M6 bolts they will fit. You can get a washer and nut or wingnut to fit your u-bolts at a local hardware store, but the plastic portion won't be found there.
    view full answer...

  • U-Bolt Dimensions for Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box
  • Yes, the U-Bolts that come with the Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box # CTC-18PARTS have a 3/16" diameter and are spaced 4" apart on center. I have attached some photos to demonstrate this and some other measurements that you may be interested in.
    view full answer...

  • Will the Replacement Mounting Hardware for Car Top Fit a Packsport Series 90 Cargo Box
  • I am not familiar with the Packsport Series 90 Cargo Box but the Replacement Mounting Hardware for Car Top Cargo Roof Cargo Box part # CTC-18PARTS will work with pretty much any cargo box. The u-bolts are 4" wide but if your bolt holes do not match this then you can just drill a few new holes as this is very commonly done on rooftop cargo boxes.
    view full answer...

  • Yakima Loadwarrior Basket Replacement Hardware
  • We do have replacement mounting hardware for the Yakima LoadWarrior part # Y07070 with the part number # Y8870040 but the # CTC-18PARTS will not work with the Yakima cargo basket.
    view full answer...

  • Need Replacement Hardware for Thule Evolution Cargo Box
  • We do have replacement hardware for the Thule Evolution 1200 cargo box, but # CTC-18PARTS is not the correct part. The actual replacement hardware kit for the Thule Evolution 1200 is the Thule EasySnap Mounting Kit # TH05820 .
    view full answer...


Do you have a question about this Accessories and Part?




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Info for this part was:

Edited by:
Tyler C
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Kathleen M
Written by:
Daron K

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