1. Accessories and Parts
  2. Thule
  3. Roof Box
  4. Support
Replacement Plate Box Support for Adventurer Cargo Box

Replacement Plate Box Support for Adventurer Cargo Box

Item # TH10378
lowest price pledge
Retail:$9.90
Our Price: $4.49
You Save: 55%
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.28 lbs
Quantity: 
In Stock, Ships Today
Thule Roof Box - TH10378
zoom in 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

Call 800-298-8924 to order Thule accessories and parts part number TH10378 or order online at etrailer.com. Free expert support on all Thule products. Guaranteed Lowest Price and Fastest Shipping for Replacement Plate Box Support for Adventurer Cargo Box. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (40)
  • Q & A (16)
  • Photos
  • Why etrailer?

Thule Accessories and Parts - TH10378

  • Roof Box
  • Support
  • Thule


  • Fits Thule Adventurer Cargo Box
  • Qty. 1 support

10378 Thule Plate Box Support






Customer Reviews

Replacement Plate Box Support for Adventurer Cargo Box - TH10378

Average Customer Rating:  4.8 out of 5 stars   (40 Customer Reviews)


- TH10378
by:

exactly the right part, shipped fast 640611



- TH10378
by:

Excellent service and the only vendor that offered what I was looking for. I needed to change my shipping service after ordering online, and a quick call to eTrailer solved the problem. The product arrived early and was in excellent condition. 607580



- TH10378
by:

Product retrofit topper correctly. Availability of the parts I needed allowed me to purchase a second hand topper with hardware missing and make it whole again for a reasonable price. Product tested favorably on a 1600 mile trip. Thanks! 395815



- TH10378
by:

Replaced the 15 year old hardware on my Thule Adventurer carton carrier. The kit came with all the hardware including four new flat plates, painted black. The old hardware was starting to rust. Now I am ready for another 15 years. Fast and accurate delivery by etrailer.com. 252047



- TH10378
by:

First off, etrailer was the only company that gave me any hope of finding a key to fit a Karrite roof box from the early '90s. Thule told me they didn't support the old stuff from a company they acquired, but etrailer responded that there was a good chance the Thule N key of the same number would fit the Karrite lock with a 3 digit code. They were right and I'm back in business. The latches for the explorer box were an exact fit as well. The explorer spring hinges and Adventurer box support plates required some modification to work, but I expected that going in. The only thing that doesn't seem to work is the Thule change key that I added to meet the minimum order for free shipping. The spring hinges are a bit weak for the larger box which likes to distort the lid when it is being opened or closed. They work well at holding the lid open, but I bent one of the arms while closing the lid. At some point I'll reinforce the arms where they are a bit thin near the pivot. Etrailer helped make the old box functional so I didn't have to spend 10x as much for a new one. 170791



- TH10378
by:

Quick shipment, product as described. Would recommend. Fits the Thule Classic 601 no problem. We misplaced our plates and it was tough to find a replacement for these - if you're looking, they seem to be an exact fit. 676768



- TH10378
by:

Perfect fit for older, Sears Sport 15 CAV cargo box. Helps add strength between box and cross rails. 675021



- TH10378
by:

I’ve been missing this part for years and couldn’t find it. I couldn’t believe you carried it and many other hard to find products. Thanks 651248



- TH10378
by:

Fast service and shipping. Product description from prior question was extremely helpful, as this is the exact part I was looking to buy. Great service and price. 578950



- TH10378
by:

Great service couldn't ask for better. Shipping was fast and on time. 526042



- TH10378
by:

Exact match to the original 454491



- TH10378
by:

Delivery was quick and it fit my existing hardware perfectly. 443705



- TH10378
by:

Order was as expected. 413622



- TH10378
by:

bought a second hand thule summit last Sunday that was missing tbe retaining plate. I really needed the carrier for vacation. Summit iz an older model and needed the plate by thurs. etrailer got the brand new plate to me on time by shipping it Sunday. Eternally thankful to them. product was perfect. 411776



- TH10378
by:

Got exactly what I ordered, shipping was fast and painless. 397093



- TH10378
by:

Had what I needed would use you guys again thank you 394829



- TH10378
by:

Product packed well and shipped quickly! 365156



- TH10378
by:

Worked well with my Thule Cargo Box, I used this on the underside of my old Thule Cargo Box (15+ years old), because the plastic was starting to get hair line cracks if I tightened the 3-wing hand knob (TH10378) too tight, and I used the plate box support to fix the cracking. 314109



- TH10378
by:

Arrived fast, actually took ninterest to make sure i got the parts i needed! Will buy what i can from this company what internet shopping is supposed to be. 308294



- TH10378
by:

Worked extreme well and was exactly what I was looking for. It's holding up nicely. 308806



- TH10378
by:

I misplaced one of the u-bolts and plates for my X-Cargo Sport 20 rooftop carrier. Jackie from ETrailer was BEYOND helpful with locating the correct parts for my specific model carrier. The price was very reasonable, and the product came within days of my placing the order. I would definitely do business with Etrailer again. It is obvious that they are extremely customer service oriented, and really knowledgeable about all their products. 300117



- TH10378
by:

Exactly what I needed. 283209



- TH10378
by:

Tonya went above and beyond in her customer service. she realized my ordering mistake and corrected it. You have a great employee. Val Stewart 280328



- TH10378
by:

An exact match, thank you :) 259937



- TH10378
by:

It works ...fits the u-bolts on an early Adventurer 227870


25
40
Show More Reviews

Ask the Experts about this Thule Accessories and Parts

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:

Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C

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.