---
product_id: 1294284
title: "CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115"
brand: "curt"
price: "1085.84 DT"
currency: TND
in_stock: false
reviews_count: 13
url: https://www.desertcart.tn/products/1294284-curt-18117-21-x-37-inch-roof-rack-extension-curt
store_origin: TN
region: Tunisia
---

# 21x37 in dimensions 4-inch high walls Easy installation CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115

**Brand:** curt
**Price:** 1085.84 DT
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Elevate Your Adventure with CURT's Roof Rack Extension!

## Quick Answers

- **What is this?** CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 by curt
- **How much does it cost?** 1085.84 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1294284-curt-18117-21-x-37-inch-roof-rack-extension-curt)

## Best For

- curt enthusiasts

## Why This Product

- Trusted curt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Constructed from durable tubular steel with corrosion-resistant finishes.
- • **Effortless Setup:** Quick assembly means more time for adventure and less time for hassle.
- • **Expand Your Horizons:** Transform your CURT rooftop cargo carrier with an additional 6 sq. ft. of space!
- • **Travel with Confidence:** Enhanced 4-inch walls keep your gear secure on the go.
- • **Universal Compatibility:** Easily attaches to most roof rack rails with no extra hardware needed.

## Overview

The CURT 18117 Roof Rack Extension is designed to enhance your CURT rooftop cargo carrier (model 18115) by increasing usable space from 11 sq. ft. to nearly 17 sq. ft. With 4-inch high walls for added security, this extension is easy to install and compatible with most roof rack rails. Made from durable tubular steel and finished with a corrosion-resistant coating, it promises longevity and reliability for all your travel needs.

## Description

Even with the roomiest of vehicles, packing the car for a long trip can quickly turn into a frustrating game of Tetris. CURT cargo carriers are a simple yet effective solution for maximizing the storage area of your vehicle. The CURT roof rack cargo carrier is a roomy and versatile cargo carrier with a lightweight design and easy installation. It features a simple two-piece assembly and mounts to most styles of roof rack base rails. With its strong steel construction and durable black powder coat finish, it easily stands up to the tough trails and long miles ahead. One of the key advantages to the CURT roof rack carrier is its extension option. With this extension piece installed, the cargo rack goes from a little over ten square feet of storage room to an impressive 16 square feet, providing a lot of extra room for storing bulkier items. The roof rack cargo carrier readily accepts a CURT cargo net to get you packed up and on your way with less hassle.

Review: Cool and helps - I needed to move and I was able to pack things in my Nissan suv and on top. It looked extremely cool and was easy to assemble. It was strong and sturdy. I didn’t hear any wind noise and would recommend purchasing due to value for money.
Review: Great product at a great price. - This extension was very easy to install just make sure you remember to put the plates back on before you screw it all together if you want them installed. I forgot on one of them and had to take the screws back out to put it back on. This extension added quite a bit more space to the basket. I thought that I might be able to shorten it but due to its design that is not possible. I have the basket installed on a 2007 Tacoma 4 Door and it overhangs in the rear about 4 inches, and goes all the way to the start of the windshield in the front, but it works fine, and I am ok with the overhang.

## Features

- EXTENSION. This cargo carrier extension is designed to be used in combination with the CURT car roof rack carrier #18115 (sold separately). It installs easily and increases the usable square footage from 11 sq. ft. to nearly 17 sq. ft
- ENHANCED SECURITY. This rooftop cargo carrier extension has 4-inch high walls to keep items securely in place during travel
- EASY TO USE. Adding cargo space to your vehicle is easy with this extension and the rooftop cargo carrier #18115 (not included). It frees up the inside of your vehicle for other cargo or passengers
- UNIVERSAL FIT. Once installed on the rooftop cargo carrier #18115, the extended carrier securely attaches to most roof rack rails, using simple, universal brackets. This extension piece assembles quickly with no additional hardware needed
- DURABLE BUILD. This roof rack basket extension is constructed from tubular steel to promote high strength and a lightweight design. It is also finished with an E-coat and carbide black powder coat for long-lasting corrosion resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004O844EM |
| Best Sellers Rank | #1,794,096 in Automotive ( See Top 100 in Automotive ) #2,155 in Towing Hitch Wiring |
| Brand | CURT |
| Brand Name | CURT |
| Color | CARBIDE BLACK POWDER COAT |
| Compatible with Vehicle Type | Passenger Car |
| Customer Reviews | 4.6 out of 5 stars 970 Reviews |
| Global Trade Identification Number | 00612314181179 |
| Included Components | Roof Rack Extension |
| Item Dimensions | 21 x 37 x 4 inches |
| Item Type Name | CURT 18117 Roof Rack Extension for CURT Rooftop Cargo Carrier, 21-Inch x 37-Inch x 4-Inch |
| Item dimensions L x W x H | 21 x 37 x 4 inches |
| Load Capacity | 60 kg |
| Manufacturer | Curt Manufacturing |
| Manufacturer Part Number | 18117 |
| Manufacturer Warranty Description | One Year Limited |
| Material | Steel |
| Material Type | Steel |
| Model Number | 18117 |
| Mounting Type | Power Click |
| Number of Items | 1 |
| OEM Equivalent Part Number | 18117 |
| UPC | 612314181179 |
| Unit Count | 1 Count |
| Vehicle Service Type | Passenger Car |

## Product Details

- **Color:** CARBIDE BLACK POWDER COAT
- **Brand:** CURT
- **Item dimensions L x W x H:** 21 x 37 x 4 inches
- **Is Foldable:** No
- **Mounting Type:** Power Click
- **OEM Part Number:** 18117
- **Global Trade Identification Number:** 00612314181179
- **Manufacturer:** Curt Manufacturing
- **UPC:** 612314181179

## Images

![CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 - Image 1](https://m.media-amazon.com/images/I/61PTXcAsLqL.jpg)
![CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 - Image 2](https://m.media-amazon.com/images/I/71b+Jx3e1+L.jpg)
![CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 - Image 3](https://m.media-amazon.com/images/I/71yOr6fTTNL.jpg)
![CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 - Image 4](https://m.media-amazon.com/images/I/810dvf5VUSL.jpg)
![CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115 - Image 5](https://m.media-amazon.com/images/I/81v6H+InY9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cool and helps
*by J***B on December 8, 2024*

I needed to move and I was able to pack things in my Nissan suv and on top. It looked extremely cool and was easy to assemble. It was strong and sturdy. I didn’t hear any wind noise and would recommend purchasing due to value for money.

### ⭐⭐⭐⭐⭐ Great product at a great price.
*by T***R on November 13, 2013*

This extension was very easy to install just make sure you remember to put the plates back on before you screw it all together if you want them installed. I forgot on one of them and had to take the screws back out to put it back on. This extension added quite a bit more space to the basket. I thought that I might be able to shorten it but due to its design that is not possible. I have the basket installed on a 2007 Tacoma 4 Door and it overhangs in the rear about 4 inches, and goes all the way to the start of the windshield in the front, but it works fine, and I am ok with the overhang.

### ⭐⭐⭐⭐⭐ Nice addition for some extra space on your cargo basket
*by A***R on November 15, 2022*

I recently picked up an SUV that had a roof rail setup. I wanted to get some extra room and picked up a Curt cargo basket. Two things, it looked TINY of top of the SUV and it didn't fit the roof bag I had purchased in the past. This extension makes up for both issues. The 18117 adds just shy of 2 feet of length to the main basket (21 inches to be exact). Other then snapping on the plates to hide the gaps between the addition and the main basket and then screwing down a few screws, there is nothing else to do. It was quick and painless. The price was decent for a name brand such as Curt as well. I think this is a good addition if you are looking to hold more cargo up top on your SUV. I would recommend against using it on a car as it will most likely make the basket too long and it will hang over the front or rear windows. This is my first cargo basket and, while it is much cheaper than a Thule or similar higher end brand, it was half the price. I don't use it on a regular basis so it should hold up for quite some time, especially compared to the knock off brands that charge under $150 for a basket AND bag.

## Frequently Bought Together

- CURT 18117 21 x 37-Inch Roof Rack Extension for CURT Rooftop Cargo Carrier 18115
- CURT 18115 Universal 42 x 37-Inch Black Steel Roof Rack Rooftop Cargo Carrier
- CURT 18201 65 x 38-Inch Elastic Cargo Net with Hooks for Roof Basket

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-26*