CURT® 18117 - Roof Mounted Cargo Carrier Extension

4.517 reviews / Item # mpn1092718
CURT® - Roof Mounted Cargo Carrier Extension
CURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier ExtensionCURT® - Roof Mounted Cargo Carrier Extension Installation InstructionsCURT® - Catalog 2016CURT® - Roof Mounted Cargo Carrier ExtensionMade In USACURT Authorized DealerCURT Special Offers
In Stock (129) - Ships within 24 hrs
Universal Fit
Fitment Notes:
  • Not Vehicle Specific
  • Cargo net solds separately.
  • For use with CURT #18115 only
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Product Details

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CURT Accessories

Roof Mounted Cargo Carrier Extension (18117) by CURT®. Dimensions 21 In. x 37 In. x 4 In. Transform your vehicle into a reliable load-hauling machine by installing this superior trailer hitch. With this product that is made utilizing only the highest quality materials and the latest manufacturing technologies, you can safely haul your loads no matter whether you're simply going from point A to B or heading for a long trip. Built to last, it brings a great combination of durability and worry-free performance.


  • Cargo net solds separately.
  • For use with CURT #18115 only
CURT Towing 101CURT - F.A.QCURT - About


  • Dimensions 21 IN x 37 IN x 4"
  • Weight 14
  • Finish Durable Powder Coat
  • Color Black


  • Expands the storage area of the CURT roof-mounted cargo basket #18115
  • Frees up space inside the vehicle for passengers and cargo
  • Adds almost six sq. ft. of storage area
  • Mounts to most roof rack base rails
  • Lightweight and easy to install
  • Protected by a highly durable carbide powder coat finish

Augment your cargo capacity easily and inexpensively with a cargo carrier. Sure, we have traditional roof racks, who wants to lift all that stuff up there, and then back down? Not to mention the extra fuel you’ll burn with all that gear out in the breeze. A second option is a hitch receiver-mounted Cargo Carrier. Put several hundred pounds of gear and luggage out behind your vehicle at waist height, where it’s easy to reach. And when you don’t need to carry all that stuff around, just pull the pin and stow the cargo carrier behind the garage until the next time.

CURT® Manufacturing has been a leader and innovator in the trailering industry since 1993. CURT markets a broad range of trailer hitches, towing systems and related accessories. CURT is "The First Name in Towing Products" for automobile and truck hitches, as well as RV and commercial towing systems. Products are marketed through retailers, distributors, installers, and e-tailers across the U.S. and Canada. CURT employs almost 350 associates, primarily at its manufacturing and headquarters in Eau Claire, Wisconsin. CURT operates 10 regional warehouses, each carrying over 2,500 items and has been twice named a Wisconsin "Manufacturer of the Year".

Part Number:

Warranty Information

Find out everything you need to know about the product warranty

CURT Manufacturing, LLC (CURT) warrants to the original purchaser (Purchaser), its products to be free from defect under normal use and service, ordinary wear and tear excepted, for the warranty period stated below, from the date of the original retail purchase, but subject to the limitations as set forth below.

Limitation on Warranty: CURT's obligation under the above warranty is limited to repair or replacement of the CURT Product (Product), at its option due to a manu- facturing defect of the Product. CURT shall not be liable for the loss of or use of vehicles, loss of or damage to personal property, expenses such as telephone, lodging, gasoline, towing, tire damage or any other incidental or consequential damages incurred by the Purchaser, or any other person or entity.

CURT will examine the returned Product. If CURT, in its exclusive discretion, determines that the defect or damaged Productis covered under this limited warranty, CURT will repair the Product or replace it at that time.

Alterations to or misuse of the Product will void the warranty. For example, overloading or exceeding an automobile or trailermanufacturers' weight ratings, or maneuvering motor vehicles equipped with Products at improper rate of speed, shall voidthe warranty on any of the Products. Failure to properly maintain and regularly inspect the Product according to the specific instruction sheet accompanying each Product shall also void the warranty.

Some states do not allow the exclusion or limitation of incidental or consequential damages. If such exclusions or limitations are prohibited under the applicable law, the above limitation or exclusion may not apply.

This Warranty gives you specific legal rights and you may also have other rights, which vary from state to state.

The Purchaser, when returning a CURT Product, must observe the following steps:

1. The Purchaser must have proof of purchase of any damaged Product.The Purchaser must obtain a Returned Goods Authorization (RGA) number in order to return any damaged Product for inspection and evaluation under this Limited Warranty.

2. The Purchaser must pay all handling charges and shipping costs to deliver Products and must send the damaged Product along with the RGA number and proof of purchase.

3. Upon receipt of damaged Product, CURT will determine whether the damaged Product is covered under the Limited Warranty. If it is, CURT will repair or replace the Product. If the Product is replaced, the Product that is originally returned by the Purchaser shall become the exclusive property of CURT. If the returned Product is not covered under the Limited Warranty, CURT will notify the Purchaser before taking any further action with regard to repair or replacement, which would be at the Purchaser's cost.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal
Year Make Model Fitment Notes:
ALL       ALL        ALL         This part is universal

    Product Reviews


    Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

    CURT® - Roof Mounted Cargo Carrier Extension
    CURT® 18117 - Roof Mounted Cargo Carrier Extension
    Average Rating: 4.6 of 5
    4.3 of 5
    Good For The Price
    Looks good. When i got it, it was really hard to assemble because a part was a bit bended so i had to hammer it in place. Apart of that, it looks kinda cool on my car it does not look cheap either.
    FPosted by (Montreal, QC) /
    2013 Mini Countryman
    Was this review helpful for you? Yes
    5 of 5
    Curt Roof Rack
    Fits on my 2007 Hyundai Santa Fe very nice. I'm happy with overall look or roof rack. Right style and very well priced.
    CPosted by (Winnipeg, MB) /
    Was this review helpful for you? Yes
    5 of 5
    Curt Basket For My 2013 Subaru Outback
    Great basket. Just put it on my 2013 Subaru Outback. My last vehicle was a Jeep Cherokee that I bought a Thule basket for. This Curt basket is almost identical in construction and quality and cost a 1/3 of the price. The only negative is the ubolts that mount the basket are too long. They stick up over the roof rail which will snag any cargo inside. Nothing my Dewalt SawZall couldn't fix. This is a great basket and highly recommend it.
    RPosted by (Mt Holly, NC) /
    Was this review helpful for you? Yes
    4 of 5
    Curt Roof Rack Extension
    CURT® 18117 - Roof Mounted Cargo Carrier Extension
    Good looking product, matches the curt roof rack perfectly, doubles the size of your carry capacity on your rack.
    JPosted by (Madison, VA) /
    1998 GMC Suburban
    Was this review helpful for you? Yes
    5 of 5
    Great Experience
    CURT® 18117 - Roof Mounted Cargo Carrier Extension
    I already had the base carrier but realized the additional length would be better so I ordered the extension. The piece fit perfectly and now affords me more cargo space for my camping gear.
    CPosted by (Phoenix, AZ) /
    Was this review helpful for you? Yes1  person found this review helpful.
    5 of 5
    My order arrived missing a small part. I contacted customer service with the problem. Vincent Colin was my service representative. He contacted CURT on my behalf and arranged a replacement car top carrier, as well as shipping (at no cost to me) of the original carrier back to the manufacturer. Please, pass on my thanks to Vincent. In these days, it is rare to see such great customer service. Vincent's responsiveness left me with a good impression of CARiD. Because of such a positive experience, I know I will return to CARiD for my future needs. In appreciation, Preston "Ed" Brown.
    PPosted by (Aurora, CO) /
    Was this review helpful for you? Yes
    4 of 5
    2013 Mazda 5
    It is a good quality product, but it does not completely fit on the 2013 Mazda 5 loading bars.
    PPosted by (Azusa, CA) /
    Was this review helpful for you? Yes1  person found this review helpful.
    4.5 of 5
    Simple and Love It
    Very easy mounted to Odyssey... Very good price, quality high standard... And very nice design.
    CPosted by (Sylmar, CA) /
    Was this review helpful for you? Yes1  person found this review helpful.
    4.8 of 5
    Great Value
    Like the rack. Well built for the money.
    JPosted by (Fort Myers, FL) /
    Was this review helpful for you? Yes1  person found this review helpful.
    4.3 of 5
    Curt 18115 Cargo Carrier
    I decided on the Curt 18115 for my Mini Cooper Countryman because it looked nice, the size was good, and the price was great. I have not been disappointed. The roof rack arrived in a single large box that was not too heavy for me to carry into my living room for assembly. There are three metal plates for the sides and back of the carrier, the two basket pieces, and the wind deflector and hardware. The two side plates were stuck together and scratched up pretty badly, but that was the only damage. Once assembled, a little flat black touch-up and this was taken care of. Assembly was not difficult although, the included instructions were terrible. The hardware for the wind deflector could have been explained better, but there are not that many pieces so someone mechanical enough to assemble IKEA furniture would not need the instructions anyway. Assembled, the basket is light enough for me to place it on the roof of my car alone. A taller car and you may want some assistance. The hardware for mounting it to the cross bars was easy to assemble and worked great, but I would recommend re-tightening it (the nuts are made to be tightened by hand) after 50-100 miles. Empty, the carrier hurt my gas mileage by about 1.5 mpg. There is not much else to say. It looks nice. The finish is pretty nice and has been durable enough to survive a couple of 300 mile trips already. I would recommend this to anyone who is looking fr a general purpose universal cargo carrier.
    MPosted by (Waterbury, CT) /
    Was this review helpful for you? Yes
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