The WeatherTech 431509IMSK SeatBack Cargo Liner HP with Bumper Protector delivers premium, full-coverage protection for the cargo area of your Toyota 4Runner, covering both the cargo floor and the back of the second-row seats — even when they're folded completely flat. Finished in a rich Cocoa color, this liner is custom-fit to sit behind the 2nd row seating for a precise, gap-free look.
Built from the same advanced rubber-like thermoplastic elastomer (TPE) as WeatherTech's bestselling FloorLiner HP, this one-piece cargo mat is tough enough to handle spills, pet hair, mud, grass, sports equipment, groceries, and everyday debris. A patent-pending expandable accordion hinge allows the liner to maintain seamless, uninterrupted coverage when the rear seats are lowered — protecting seat backs and the cargo floor simultaneously. A water retention ribbing system channels and traps spills to prevent them from spreading.
Key Features:
- One-piece design covers cargo floor and the back of the 2nd-row seats — with or without seats folded down
- Patent-pending accordion hinge maintains full coverage with seats in the fully flat position
- Water retention ribbing system helps trap and contain spills and moisture
- Non-slip nibs on the underside and hook fasteners keep the liner firmly in place on both the floor and seat backs
- Trimmable ISOFIX-compatible outline accommodates child car seat attachments
- Includes integrated Bumper Protector to guard the rear bumper during loading and unloading
- Made from durable thermoplastic elastomer (TPE) — resists cracking and breakdown in extreme temperatures
- 100% recyclable; free of latex, PVCs, cadmium, and lead
- Easy to install and remove for quick cleaning
- Designed and manufactured in the USA
The WeatherTech 431509IMSK is custom-fit specifically for the Toyota 4Runner (2010–2024), ensuring precise coverage with no trimming required. Whether you're hauling outdoor gear, transporting pets, or tackling daily errands, this SeatBack Cargo Liner HP keeps your cargo area looking clean and protected.