WeatherTech 446976IM FloorLiner HP Rear Floor Mat Black | 2021-2026 Ford F-150 SuperCrew & Raptor

Overview

The WeatherTech FloorLiner HP (Part #446976IM) is the next generation of high-performance rear floor protection engineered specifically for 2021–2026 Ford F-150 SuperCrew and Raptor owners. Laser-measured for a precise, vehicle-specific fit, this black rear FloorLiner HP delivers three-dimensional coverage — protecting the bottom, front, back, and sides of your F-150's rear footwell from mud, snow, road salt, spills, and daily wear. Whether you're hauling gear through the mountains or dealing with messy passengers on daily commutes, this is the best rear floor liner for the 2021–2025 Ford F-150 SuperCrew.

Key Features & Benefits

• Laser-Measured Custom Fit — Digitally measured to match the exact contours of the 2021–2026 F-150 SuperCrew rear footwell, delivering a precise fit that generic mats simply can't match.
• Advanced TPE Construction — Injection-molded from a rubber-like Thermoplastic Elastomer (TPE) compound for a premium soft-touch feel that won't crack, curl, or break down in extreme weather conditions.
• High-Wall 3D Coverage — Raised outer edges cover the front, back, and sides of the footwell for full three-dimensional protection — far superior to flat floor mats.
• Anti-Skid Retention System — Specially designed retention clasps and non-slip nibs on the underside lock the liner firmly in place, eliminating dangerous shifting or sliding underfoot.
• Watertight Sill Design — A watertight sill around the retention clasps prevents liquid messes from seeping onto the factory carpet beneath.
• Beveled Edge Stability — The beveled edge prevents sidewalls from curving inward, maintaining shape and seamless coverage mile after mile.
• Multi-Level Channel System — Advanced surface channeling carries fluids, mud, and debris down to a lower reservoir, keeping them away from shoes and clothing for easy cleanup.
• Eco-Friendly & Safe Materials — Made from 100% recyclable TPE material that is latex-free, PVC-free, BPA-free, phthalate-free, cadmium-free, and lead-free. Virtually odorless.
• CARB Compliant — Meets California Air Resources Board (CARB) compliance standards.
• Proudly Made in the USA — Designed, engineered, and manufactured in America with premium raw materials.
• Lifetime Limited Warranty — Backed by WeatherTech's Lifetime Limited Warranty against defects in materials and workmanship for the life of the original purchaser on the original vehicle.
• Easy to Clean — Simply remove and shake off debris, hose down, or wipe clean. No vacuuming or carpet scrubbing required. Compatible with WeatherTech TechCare® FloorLiner Cleaner/Protector Kit for deeper cleaning.

What's Included

• 1x WeatherTech FloorLiner HP Rear Floor Mat Set — Black (1-piece rear liner)
• Installation & Safety Information Guide

Specifications

Manufacturer Part Number	446976IM
UPC	787765968881
Brand	WeatherTech
Series	FloorLiner HP (High Performance)
Position	Rear / 2nd Row
Color	Black
Material	Thermoplastic Elastomer (TPE)
Fitment Method	Laser-Measured Custom Fit
Retention System	Watertight retention clasps + anti-skid nibs
Edge Design	Beveled high-wall design
Recyclable	Yes — 100% recyclable
Harmful Chemicals	No PVC, latex, BPA, phthalates, cadmium, or lead
CARB Compliant	Yes
Country of Manufacture	USA
Warranty	Lifetime Limited Warranty (original purchaser, original vehicle)

Fitment & Compatibility

This WeatherTech FloorLiner HP (446976IM) is precision-engineered to fit the following vehicles:

• 2021–2026 Ford F-150 SuperCrew — with front bucket seats and rear underseat storage
• 2021–2026 Ford F-150 Raptor SuperCrew — with front bucket seats and rear underseat storage

Important Fitment Notes: This liner is designed for SuperCrew cab configurations with front bucket seats and rear underseat storage only. Confirm your F-150's cab style, seat configuration, and underseat storage option before purchasing. Some vehicle option packages (such as subwoofers or upgraded speaker systems) may require use of optional side trim lines for the best fit — trimming along these designated lines does not void the warranty.

Cross-Reference: Also known as the WeatherTech 3D FloorMat (formerly marketed as WeatherTech 3D Floor Mats). Pairs with WeatherTech front FloorLiner HP #446971IM for complete F-150 floor protection.

Installation

Installation is straightforward and tool-free — no drilling or adhesives required. Important: Remove all factory or existing floor mats before installing. Never stack the FloorLiner HP on top of or underneath existing mats, as this can create interference with vehicle controls and create an unsafe driving condition. Position the liner flat in the rear footwell, engage the retention system/clasps, and confirm the liner is fully seated without interfering with seat tracks, door sills, or other components. Before operating the vehicle, verify that the liner is secure and does not shift. Installation and safety instructions are included in the box and also available on WeatherTech's website.

Frequently Asked Questions

Is the WeatherTech FloorLiner HP CARB compliant? Yes. This product meets California Air Resources Board (CARB) compliance standards.

Is this liner made in the USA? Yes. The WeatherTech FloorLiner HP is designed, engineered, and manufactured in America using premium domestic raw materials.

Does the WeatherTech FloorLiner HP have a warranty? Yes. It is backed by WeatherTech's Lifetime Limited Warranty, covering defects in materials and workmanship for the life of the original purchaser on the original vehicle it was installed in.

Is the FloorLiner HP better than the standard WeatherTech FloorLiner? The HP is the next-generation upgrade — it uses a softer, more flexible rubber-like TPE compound instead of the firmer material used in the original FloorLiner, resulting in improved grip underfoot (especially when wet), a quieter feel, and a premium soft-touch surface texture.

Can I use this mat over my factory floor mats? No. Factory mats must be fully removed prior to installation to ensure proper fit and safe operation of vehicle controls.