1. Accessories and Parts
  2. Thule
  3. Roof Box
  4. Mounting Kit
Replacement Hardware Kit for Searsbox Cargo Box

Replacement Hardware Kit for Searsbox Cargo Box

Item # TH05603
lowest price pledge
Our Price: $65.58
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 2 lbs
Quantity: 
In Stock
Thule Roof Box - TH05603
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

Customer Photos

Videos

Need help with installation?
Locate installers near me
Replaces the mounting hardware for your Searsbox cargo box (SP-20SV). Call 800-298-1624 to order Thule accessories and parts part number TH05603 or order online at etrailer.com. Free expert support on all Thule products. Guaranteed Lowest Price and Fastest Shipping for Replacement Hardware Kit for Searsbox Cargo Box. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (124)
  • Q & A (108)
  • Videos (1)
  • Photos
  • Why etrailer?

Thule Accessories and Parts - TH05603

  • Roof Box
  • Mounting Kit
  • Thule

Replaces the mounting hardware for your Searsbox cargo box (SP-20SV).


Features:

  • Replacement hardware for your Searsbox cargo box (SP-20SV)
  • Includes hardware to mount all 4 corners of your cargo box to your roof rack crossbars


05603 Thule Replacement Hardware Kit for Sears Cargo Carrier





Video of Replacement Hardware Kit for Searsbox Cargo Box

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




Video Transcript for Review of Thule Replacement Parts - Roof Box Hardware - TH05603

Ellen: Hey everybody. Ellen here at eTrailer.com. Today we're going to be taking a look at the replacement hardware kit for the Searsbox cargo box. This is a replacement hardware kit from Thule, and it's going to come with everything you see laid out on the table here.We'll get four of our larger plates. Four of our smaller plates. Four U-bolts with the threaded ends.

And then eight wingnuts. And also, a sheet of vinyl stickers.The vinyl stickers help to plug up any holes for unused mounting holes. So any kind of hole that you have in your cargo box that isn't being used, this can help to seal that up and prevent any leaks from happening. We'll get 15 of those little stickers. I'm going to set these off to the side, because my fan tends to blow them away.

But they do come with your kit.The more important part, though, will be our brackets. So everybody wants to know how big these are. Will they fit my cargo box And like I said, this does fit the Sears Box cargo box. But it does work for a lot of different cargo boxes out there. Especially if it has that style that has the U-bolts and clamps to get it attached.So this bigger plate here measures about 5 1/2" long by about 2 1/2" wide.

The mounting holes, center to center, for the two furthest ones are about four inches apart. Again, that's center to center. And then, the two . each one is separated by about two inches center to center.It is about 1/8" thick. Maybe even less than 1/8".

So it's a pretty thin material, but it is pretty durable. So this might flex around your bar, depending on how tight you get it. That can be a good thing, because then it'll help to kind of grip around and prevent any sliding, but, of course, you don't want to over-tighten, and then end up crushing this, or totally warping it.Our smaller bracket. Let's look at that one. From end to end, it kind of has these rounded edges. It's about five inches long. And about an inch wide. We'll have several mounting holes on this one. The two widest holes are four inches apart again, center to center. The two that are a little bit set in from that, center to center, those are three inches apart. And then from those narrowest holes to that center hole, is about 1 1/2" to our furthest out option is about two inches.So, two inches in between these two holes. 1 1/2" in between these two. And then it'll be the same going in the other direction. Now, those measurements are going to be the same for all of our brackets.Let's look at our U-bolt. So, from outside edge to outside edge, that U-bolt is about four inches wide. The threads are a little bit thicker. They go just past four inches. But I think four inches is going to be . excuse me. 4 1/4 inches. So, the center of the bolt to the center of the other one is a little bit wider than that at the ends, so they do kind of flare out. But at the top it's about four inches.There is a slight curve to that, so it'll work well for aero bars, elliptical bars, round bars. Pretty much most style roof racks. The tallest portion of that is just over two inches from the bottom of the threads to the very top of it. The inside area is about two inches. The threaded portion is a little over an inch. Maybe 1 1/8" long. So I hope that helps you in determining if this is going to fit for your box.Those handle nuts, overall, are about 1 1/2" long. The widest point, that little wing portion, is about 1 3/8". The nut, or the threaded portion inside, does sit back a little bit. Say that starts about where that bump is in the bolt, and that's about 3/8" deep. So I have a little bit of room.And then, it goes down about 7/8". So I just wanted to kind of go over those measurements with you to help figure out if this is going to fit your particular cargo box. This is going to be a very universal kit. A lot of boxes will have that four-inch-wide mounting holes.If yours doesn't but you still need this kit, you still need that clamp style, you can always drill out those holes. Just be careful whenever you do that. Always measure twice, cut once. And plug up any holes that you might have created on accide.tnAnd that's going to do it for our look at the replacement hardware kit for the Searsbox cargo box.


Customer Reviews

Replacement Hardware Kit for Searsbox Cargo Box - TH05603

Average Customer Rating:  4.9 out of 5 stars   (124 Customer Reviews)

Replaces the mounting hardware for your Searsbox cargo box (SP-20SV).

- TH05603
by:

I couldn't be more pleased with this product, which enabled me to very simply, easily, and inexpensively mount my wonderful 1991 Yakima Rocket box to my 2017 Acura MDX. With your product and by drilling 8 holes, the Rocket Box is securely mounted directly to the MDX. The challenge that your product solved is that the MDX comes with roof rails and crossbars, but the crossbars are fixed mount (don't slide), the existing holes in the box don't match the crossbar spacing, and the Acura crossbars are too wide for the Yakima U bolts. Various dealers tried to sell me expensive sliding tracks to mount to the box, mounts for the round Yakima crossbars to go on top of the Acura crossbars, a makeshift assortment of bolts/nuts/plates, and one even recommended I scrap my perfectly good 1991 Rocket Box and buy a new one. Your product simply and elegantly solved ALL of the problems in the time it took for ordering (great web site), quick delivery, and the 30 minutes it took me to measure and drill 8 holes. The quality of the product is fantastic and I can't thank you enough! Warmest regards and keep up the great work!


Comments
Still great! Works well and no corrosion/deterioration.
Kip L - 10/08/2018



- TH05603
by:

I am impressed with the product and the staff. It arrived when I needed it and received multiple follow up from the company. Definitely highly recommended.



- TH05603
by:

Was so happy to find etrailer.com! We were given a karrite carrier, with no key and no hardware to attach it to the rack, but @ etrailer we got exactly what we needed. And it came in good time to prepare for our vacation! I highly recommend this company! Thank You etrailer!


Comments
Things are still working good, a year later, everything is functioning as at should.
Virginia - 06/21/2021


- TH05603
by:

Wasn’t the exact fit for my cargo carrier as I was told, but I reversed the brackets and made it work. I needed it in a hurry and it seems to have done the job.



- TH05603
by:

Does the kit do what it's supposed to? Yes. Is it a bit expensive for what it is? Yes (I paid over $xx for the kit and only $xx for my used Sears Cargo Box) The kit works great with the cargo box. We did have to drill our own holes in the cargo box to use the kit, but that wasn't difficult.



- TH05603
by: 08/29/2021

The package arrived and one of the wing nuts had no thread so I can't fully attach it.


Comments
I apologize for the damage. Customer Service will be reaching out.
-- Etrailer Expert Sierra K - 09/08/2021


- TH05603
by:

I was looking for a way to resurrect my first generation Yakima Rocket Box, re-inherited from my son. The first issue was in mounting it to the Air Stream crossbars on the Grand Cherokee. Google lead me to etrailer.com, where I found several options with the most reasonable being the Searsbox (Thule) hardware and an extensive and useful discussion of the options. My order was processed promptly but delivery was delayed by the Post Office backlog, which also kept delivery information from being provided through USPS tracking. I inquired to etrailer and received very friendly and prompt response. I also received a follow-up email on the delivery date. Excellent customer service! Excellent source for parts and information.



- TH05603
by:

This was my 2nd order from etrailer and I am very satisfied with the products. I will soon be placing another order and I expect that it will be of equal quality.



- TH05603
by:

The package was not going to arrive in time so they upgraded shipping free of charge. Wonderful service!!! Thanks!!!



- TH05603
by:

I have given the 5 stars because it looks the part and has been delivered on time.Cannot report further until the product is used to fit the Cargo Box.



- TH05603
by:

The search comes to an end! Perfect kit to make my 30 year old Yakima cargo box fit on latest Yakima Jetstream rack. Had to drill holes to fit the wider U-bolts which was no problem. Highly recommended! Great support and follow up from etrailer.



- TH05603
by:

Perfec, looks just like original parts. I can use my carrier again.



- TH05603
by:

It’s great to be able to order replacement mounting parts for a Cargo top carrier from etrailer.com I bought a used car top carrier for a fraction of a new one and now it’s complete with mounting hardware. Thanks etrailer.com


Comments
Excellent hardware kit. Just what was needed
Jeffrey - 06/10/2020


- TH05603
by:

Updated with shipping deatials.. Timely and responsive. Just a little pricey



- TH05603
by:

These would have worked fine if the Ubolt was 2 to 2 1/2" longer. I have the old Thule cross brace and the brackets of the brace require longer Ubolt threads height. I saved the package for my kids to use with their brackets. Had to use eye-bolt turnbuckle (because it was adjustable to fit the metal plates hole in the package) & 2 1/2" X1/4" carriage bolts. Install with the plates, turned out fine. I should have ordered the quick release package with the longer bolts. Lesson learn. Materials not wasted. Thank you



- TH05603
by:

Worked Great, Easy fit and install !



- TH05603
by:

Thank you delivery was on time, all was in the package and I will be installing when the rain finally stops.



- TH05603
by:

I could not use the "U-bar" connectors on my Thule/roof rack because they were not long enough to reach all the way from under the roof rack and into the Thule. I had to improvise with some longer bolts at home. The flat metal pieces are semi-thin and will likely bend if you try to tighten the connection too much, but I expected that since I was getting a good price. The parts that I am using one year after purchase are holding up well.



- TH05603
by:

I bought a Thule used and it did not have a number or name on it. The equipment to attach it did not fit my minivan or toyota highlander so I searched on etrailer.com for the right set. I measured the distance between all the existing holes on the Thule and found this set that matched up. Received it quickly, went directly out to the garage and installed them. I did have to gently tap two of the four with a mallet to get them just a smidge smaller, but they all fit now. Super happy with this purchase! I would recommend etrailer.com to anyone. Fits both a 2005 Kia Sedona and 2013 Toyota Highlander. Thule is an "Adventurer" of unknown year.



- TH05603
by:

The order arrived at the time I was told it would. The parts are identical to the original equipment in every way and the cost was reasonable. Finally, the packaging was such that there was no damage done to the equipment. etrailer.com was all that I could have wanted it to be.


Comments
They are still working well!
Nicholas A - 08/04/2018



- TH05603
by:

Lost several pieces of mounting hardware for my 10+ year old Sears XCargo and was afraid I would need to buy a whole new luggage carrier. Found these on line and they're exactly what I needed. Identical to the original hardware so I'm good for another 10 years.



- TH05603
by:

Actually, I used this kit on a hard sided golf bag carrier to attach it to my roof rack on my 2017 Outback. All I did was drill holes using the flat plates to lay out the holes and used the included hardware to fasten securely. Worked well. Now I carry gear in it when needed.



- TH05603
by:

We ordered the replacement hardware kit for Searsbox cargo box. The video of the product at the internet site was helpful, but could have shown how to use the parts in an actual replacement. The kit arrived as advertised, as promised and on time. I would highly recommend etrailer.com



- TH05603
by:

Arrived fast and perfect fit



- TH05603
by:

I liked the clamps but there needed to be a center bolt and self locking nut to keep the two plates in place. I also put some tubing on the u-clamp to keep from marring the cross bars.


26
126
Show More Reviews

Ask the Experts about this Thule Accessories and Parts

  • Replacement Hardware and 2982 Key for Sears Sport 20-SV Roof Cargo Box
    Thank you so much for the info and pictures! The correct replacement key for your lock for is part # THKEYN2982 and the correct replacement mounting hardware is part # TH05603. The mounting hardware does look a little different than the original mounting hardware that came with the box but this is the only kit available that matches up with the mounting holes and doesn't require you to modify your cargo box. I actually just spoke with someone else about this same mounting hardware kit...
    view full answer...
    Image 1 for Image 2 for
  • Replacement Lock for X-cargo Sport 20V Rooftop Carrier
    For your X-cargo Sport 20V, the Replacement Lock Core and Key for SportRack Explorer Cargo Box - Qty 1 # SR03807 is the correct fit. You may also want the Replacement Lock Locator for X-Cargo Sport 20 SV Box # TH03808.
    view full answer...
  • Replacement Mounting Hardware and Key Availability for Karrite 1100 Roof Box
    The Replacement Hardware Kit for Searsbox Cargo Box # TH05603 should work for your Karrite 1100 roof box but I am attaching some dimensional photos of the hardware so you can double check on your end. If these don't match up then you may need to drill holes in your box to use this hardware. You should be able to use a Thule key for your lock core but that can vary depending on the number that shows on the face of the lock core. If you can get me that number I can see if we have a replacement...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • Possible Replacement Mounting Hardware For Thule Combibox 250
    I checked with Thule for you and they do not have any replacement mounting hardware for a Thule Combibox 250, so we can't confirm a fit for any hardware. That said, mounting hardware can often be made to fit, though it will likely require you to drill new holes in your cargo box. If you are willing to do that you should be able to use the Replacement Mounting Hardware for Thule Weekender Cargo Box # 1032802. You may also be able to use a U-bolt option, the Replacement Hardware Kit...
    view full answer...
  • Replacement Mounting Hardware for Sears X-Cargo 20 Cargo Box
    The Replacement Hardware Kit for Searsbox Cargo Box # TH05603 that you referenced is the correct kit for your Sears X-Cargo Sport 20 cargo box and would be also compatible with the crossbars of your 2017 Subaru Forester so this would be exactly what you'd need.
    view full answer...
  • Recommended Mounting Kit for Sears X Cargo Roof Box
    We have the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 to give you a basic mount by drilling your box.
    view full answer...
  • Replacement Sears X-Cargo Box Hardware
    We do in fact have the replacement hardware for your Sears X-Cargo carrier. You will need the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 which includes everything you need to get your Sears X-Cargo back on the road. No drilling would be required.
    view full answer...
  • Old X-Cargo Rooftop Carrier Replacement Latch Securing Bottom to Top
    The replacement clips that will work for your old X-Cargo roof box are the Replacement Latch for SportRack Explorer Cargo Box # 03347. These may have a different look, but they do work with those old cargo boxes which you can see from the customer photos. I've also attached a photo to assist.
    view full answer...
    Image 1 for
  • Can Yakima RocketBox Mount to 2016 Subaru Crosstrek With Factory Crossbars
    There is not a conversion kit available, but I reached out to Yakima in regards to attempting to mount this RocketBox, and they told me the following: "That is an older box but their (2016 Subaru Crosstrek) can carry it if the mounting holes are 4" apart. Have them measure the distance between the holes where the mounting hardware goes." What this means is that if your '16 Crosstrek has crossbars that are less than 4", which it should, then you should be able to use use this cargo box.
    view full answer...
    Image 1 for Image 2 for
  • Replacement Mounting Hardware For The Thule Mountaineer Part # 669TT
    I called my representative for Thule and they informed me that there are 3 different models of the Thule Mountaineer Cargo Carrier and you will need the Replacement Mounting Hardware for SportRack and Thule Cargo Boxes part # TH05603 for a U-bolt with 4 inch on center width. According to our record, the Replacement QM3 part # TH04997 will not fit this carrier with a bolt spacing of 3-15/16".
    view full answer...
  • Recommended Mounting Hardware for Sears X-cargo Mounting Hardware
    For your old Sears X cargo roof box, I recommend the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 which is a confirmed fit for the Sears X-Cargo sport 20 Carrier. This will fit holes 4 inches on center. If you have different measurements on your 15 cu ft box than those provided in this kit, let me know your center on center mounting hole measurement.
    view full answer...
    Image 1 for Image 2 for
  • 1991 Yakima RocketBox Replacement Mounting Hardware Compatible with Aero Bars
    Your old Yakima RocketBox has mounting holes that are 4-1/2 inches on center, so there isn't a direct fit we carry. Instead I recommend using the Replacement Hardware Kit for Searsbox Cargo Box # TH05603. This will fit your Malone Aero bars like # MPG215 on your 2015 Toyota RAV4 as well as the factory bars on your 2008 Honda Pilot. I recommend using the gasket maker # LT37467 to seal the extra holes in your box to prevent water entry at the unused locations.
    view full answer...
    Image 1 for
  • Mounting Hardware for Older Sears X Cargo Box
    The best option for replacement mounting hardware for an old Sears X Cargo Box is going to be the Replacement Hardware Kit for Searsbox Cargo Box # TH05603. While it certainly is not going to be possible to verify a fitment of a cargo box that old, this hardware kit will still be usable, though you may need to drill new holes in the underside of the box to make sure the U-bolts fit through. You would then be able to use a sealant for the unused holes.
    view full answer...
  • Replacement Mounting Hardware Kit For Sears X-Cargo Xtreme Cargo Carrier
    We do in fact have the replacement hardware for your Sears X-Cargo carrier. You will need the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 which includes everything you need to get your Sears X-Cargo back on the road. I included a video of the Replacement Hardware Kit # TH05603 for you to take a look at.
    view full answer...
  • Replacement Mounting Hardware Kit for Sear X-Cargo Rooftop Cargo Box
    The Sears XCargo rooftop carriers were made by Thule and so you can use the Thule u-bolt type kit # TH05603. We also offer locks and keys for cargo boxes like your X-Cargo in case you ever need either of these items. A lot of people that use rooftop cargo carriers also select a step like # CAM43672. This folding step is lightweight aluminum, it comes fully-assembled and it gives you almost a foot of extra reach for loading and unloading your rooftop cargo items.
    view full answer...
  • Replacement Mounting Hardware for Yakima RocketBox with 2 Inch on Center U-Bolts
    For your old rocket box, you most likely want the U-bolt Kit # TH05603 with the bolts measuring 4 inches center to center. There really isn't any specific replacement hardware for your older roof box with 2 inch by 2 inch u-bolts, but these are most likely the best option for your 2 inch by 2 inch desired fit to span an extra hole. You can drill holes if needed and fill any extra holes with # LT37467 to keep the box watertight.
    view full answer...
    Image 1 for
  • Replacement Mounting Straps for the Karrite Road Rider Cargo Box
    I do have an option for you but there are no replacement parts available for the Karrite Road Rider Cargo Box due to its age. I am also not aware of any type of strap that will work in place of the original mounting straps. Therefore, the best option for you would be to remove the straps and then install the Replacement Hardware Kit part # TH05603 by drilling holes into the bottom of the cargo box to align the u-bolts.
    view full answer...
  • Alternate Mounting Hardware Kit for Thule Cascade XT Cargo Box on 2018 Hyundai Tucson
    When the original mounting hardware for a rooftop cargo box like the Thule Cascade XT will not fit on a vehicle's OEM roof rack crossbars you can substitute alternate hardware. The original u-bolts used for this cargo box are no longer available from Thule. You can use kit # TH05603 from Thule/SportRack that includes hardware that will fit on crossbars up to 1-9/16 tall x 3-3/4-inches wide. If you end up needing to drill new holes in the box any extra holes can be sealed up using...
    view full answer...
  • Replacement Mounting Hardware Recommendation for Sears X-Cargo 20 Box
    For your Sears X cargo roof box, I recommend the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 which is a confirmed fit for the Sears X-Cargo sport 20 Carrier. This would fit the factory rack of your Dodge Durango as well since the U-bolts are pretty wide.
    view full answer...
  • Mounting Hardware for the Sears X-Cargo 20 SV Cargo Box
    The correct mounting hardware for the Sears X-Cargo 20 SV is the part # TH05603. We confirmed this with our contact at Thule who manufactures the Sears boxes.
    view full answer...
  • Replacement Mounting Hardware for Thule Sidekick Cargo Boxes
    The replacement mounting hardware we have for the Thule Sidekick cargo box is # TH05603. But I think you might be talking about the small parts bag, # 04959. The replacement mounting hardware includes those items as well but if you only need those small parts then go with the small parts bag.
    view full answer...
  • Replacement Hardware Kit for X-Cargo Sport 20
    I reached out to my contact at Thule and he confirmed that the Replacement Hardware Kit for Searsbox Cargo Box # TH05603 is the correct kit and will fot the X-Cargo Sport 20.
    view full answer...
  • U-Bolt Kit Recommendation for a Sears X-Cargo Model 28
    For your Sears box the rep you spoke with at Thule is correct. You would need the part # TH05603.
    view full answer...

Do you have a question about this Accessories and Part?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Kathleen M
Video Edited:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Updated by:
Matthew S
Employee Hannah L
Updated by:
Hannah L

At etrailer.com 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.