CURT 21×37 Roof Rack Extension with 59x34x21 Cargo Bag & 2-Pack Ratchet Straps – Fits 18115

CURT Roof Rack Extension with Weatherproof Bag & 2 Ratchet Straps – Fits 18115

This CURT cargo bundle enhances the storage capacity and versatility of your vehicle’s roof rack. It includes a 21″ x 37″ roof rack extension, a weatherproof 21 cu. ft. vinyl cargo bag, and a 2-pack of 10′ heavy-duty ratchet straps. Designed to fit the CURT #18115 basket, this set is perfect for travelers, overlanders, and road trippers needing extra roof-mounted cargo space and secure transport.

Bundle Contents:

• QTY (1): CURT Roof Rack Extension – 21″ x 37″
  • Expands the CURT 18115 roof basket by approx. 6 sq. ft.
  • Durable black powder-coated steel construction
  • Easy installation with two-piece bolt-on design
  • Compatible with most roof rack base rails
  • Inside dimensions: 21″ x 37″ x 4″
• QTY (1): CURT Vinyl Roof Rack Cargo Bag – 59″ x 34″ x 21″
  • 21 cu. ft. storage capacity
  • Thick 500 x 500-denier UV-resistant vinyl construction
  • Welded seams and flap-covered zipper to resist weather
  • Securely straps to the roof rack carrier
  • Folds compactly for storage when not in use
• QTY (1): CURT Ratchet Strap Set – 1″ x 10′ (2-Pack)
  • Break strength: 1,500 lbs; working load limit: 500 lbs
  • High-strength woven nylon with yellow zinc ratchets
  • Rubber-coated S-hooks for secure grip & corrosion resistance
  • Ideal for securing heavy or irregular cargo

Before heading out, double-check your roof basket, straps, and hardware to ensure everything is secure. For use with CURT #18115 and compatible extensions only.

Specifications:
Kit Type	Roof Rack Extension with Cargo Bag & Straps
Extension Dimensions	21″ x 37″
Cargo Bag Dimensions	59″ x 34″ x 21″
Strap Size	1″ x 10′ (2-Pack)
Strap Strength	1,500 lbs Break Strength / 500 lbs Working Load
Compatibility	CURT Roof Basket #18115 with Extension #18117
Waterproof Rating	High (Welded Seams + UV Vinyl)

Order today or call us at our website customer service for expert advice and personalized service.