Critical Fitment Requirements
WeatherTech 4410321-446974 requires:
- Crew Cab body
- First-row bench seat
- No full-length flow-through console
- Factory carpeted flooring
- No rear under-seat fold-flat storage
- Compatible 2017–2022 Super Duty floor design
It does not fit:
- Front bucket-seat trucks
- Trucks with a full center console
- SuperCab or Regular Cab models
- Factory vinyl floors
- Trucks with rear fold-flat storage
- 2023–2026 Super Duty models
- Manual floor-shift configurations unless specifically confirmed
- Modified commercial interiors
The 2023 Super Duty received interior revisions, so the fact that rear component 446974 may appear in newer applications does not make this entire bundle compatible with a newer truck. A combination kit is only as compatible as every component inside it.
For more help checking complete configurations, read our OEM replacement parts buying guide.
What Does “Over the Hump” Mean?
The front component, WeatherTech 4410321, is a one-piece liner extending across:
- Driver footwell
- Center transmission hump
- Front middle-seat foot area
- Passenger footwell
This design is intended for a front bench seat without a full-length center console. It provides more continuous coverage than separate driver and passenger mats.
The layout is useful in XL, XLT and other trucks equipped with a 40/20/40-style front seat, but trim level alone does not confirm fitment. Super Duty interiors can vary within the same trim.
What Comes in the Set?
The bundle contains two molded assemblies:
- One-piece first-row over-the-hump FloorLiner
- One-piece second-row FloorLiner
Component numbers are:
| Position | WeatherTech part number |
|---|---|
| First row, over the hump | 4410321 |
| Second row | 446974 |
| Complete bundle | 4410321-446974 |
The rear liner is shaped for Crew Cab trucks without the factory fold-flat rear storage platform. WeatherTech separately identifies 446974 for Super Duty Crew Cab applications with bench seating and no rear under-seat storage. Review the rear-liner notes.
Product Specifications
| Specification | Details |
|---|---|
| Brand | WeatherTech |
| Bundle number | 4410321-446974 |
| Front component | 4410321 |
| Rear component | 446974 |
| Color | Black |
| Coverage | First and second rows |
| Front design | One-piece over-the-hump |
| Rear design | One-piece Crew Cab liner |
| Seat requirement | Front bench |
| Floor requirement | Factory carpet |
| Storage requirement | Without rear fold-flat storage |
| Material | High-Density Tri-Extruded thermoplastic |
| Fit type | Laser-measured |
| Manufacturing | Made in USA |
| Warranty | Limited lifetime warranty |
Rear Storage Configuration Matters
The second-row floor profile changes according to whether the truck has Ford’s under-seat fold-flat storage platform.
This 446974 application is intended for trucks without that platform. To check:
- Raise the rear seat cushions.
- Inspect the area directly beneath the seat.
- Look for a hinged factory platform or storage enclosure.
- Compare the exposed floor against the product images.
If the truck has the folding storage system, select the appropriate storage-specific rear liner instead.
It seems excessive until the wrong liner arrives and attempts to occupy the same physical space as Ford’s storage box. Physics remains stubborn about double-booking.
HDTE Construction
WeatherTech manufactures the FloorLiners from its High-Density Tri-Extruded material. The molded construction combines:
- A rigid structural core
- Surface friction against the carpet
- A textured upper surface
- Raised perimeter walls
- Temperature resistance
- Vehicle-specific shaping
The material is designed to remain stable during normal automotive use while allowing removal for cleaning.
Laser-Measured Coverage
WeatherTech digitally measures the applicable Super Duty interior. The one-piece front liner provides coverage across the complete bench-seat floor area rather than leaving the center hump exposed.
Protected areas include:
- Driver footwell
- Passenger footwell
- Center transmission hump
- Front middle-passenger floor
- Pedal-area carpet
- Footwell sidewalls
- Door-side carpet edges
- Second-row footwells
- Rear center floor section
This makes the set particularly useful for trucks carrying crews, children, pets or equipment across both rows.
Channels and Lower Reservoirs
Molded channels direct water and debris away from shoes and into lower collection areas. Raised edges help keep contaminants from reaching the surrounding carpet.
The liners are designed to contain:
- Worksite mud
- Rainwater
- Snow and slush
- Road salt
- Gravel and sand
- Food crumbs
- Drink spills
- Farm debris
- Wet boots
The liner should be removed and cleaned before the reservoirs become overfilled. It is a containment system, not a small municipal landfill.
Over-the-Hump Liner Versus Separate Front Liners
| Feature | Over-the-hump 4410321 | Separate front liners |
|---|---|---|
| Driver coverage | Yes | Yes |
| Passenger coverage | Yes | Yes |
| Center-hump coverage | Yes | Usually limited |
| Designed for bench seat | Yes | Application-dependent |
| Compatible with full console | No | Often |
| One-piece front design | Yes | No |
| Best application | Front bench without console | Bucket seats or console |
The over-the-hump layout is the better option when the center portion of the front floor remains open and usable.
Installation Instructions
Installation requires no drilling or trimming:
- Remove every factory carpet mat.
- Vacuum the exposed carpet.
- Inspect the floor and retention hardware.
- Position the front over-the-hump liner.
- Align it around the pedals and seat mounts.
- Engage all applicable retention points.
- Install the second-row liner.
- Move the front seat through its adjustment range.
- Fold or move the center seating section as applicable.
- Verify unrestricted accelerator and brake-pedal operation.
Never stack WeatherTech liners over factory mats. Added layers can move and interfere with pedal clearance.
Cleaning and Maintenance
Remove both liner assemblies from the truck before cleaning. Shake out loose material, rinse with water and use a mild automotive-safe cleaner for stubborn dirt.
Do not use:
- Tire dressing
- Silicone spray
- Oily protectants
- Gloss products
- Slippery cleaners
Allow the liners to dry completely before reinstalling them. Confirm that the driver-side retention system remains secure.
For more interior-care information, visit our dashboard and interior trim repair guide.
Frequently Asked Questions
What years does WeatherTech 4410321-446974 fit?
It fits select 2017–2022 Ford Super Duty Crew Cab trucks.
Which models are covered?
Catalog listings include the Ford F-250, F-350, F-450 and F-550 Super Duty, subject to cab and interior configuration.
Does it fit 2023–2026 Super Duty trucks?
The complete bundle is not confirmed for those years. Select a set specifically cataloged for the redesigned 2023-and-newer interior.
What type of front seat is required?
A front bench seat without a full-length center console is required.
Does it fit bucket seats?
No. Bucket-seat trucks use a different front liner.
Does it fit vinyl floors?
No. This set is intended for factory carpeted flooring.
Does it fit rear fold-flat storage?
No. Rear component 446974 is intended for trucks without the fold-flat storage platform.
Is the front liner one piece?
Yes. It extends from the driver side across the center hump to the passenger side.
Does it fit a SuperCab?
No. The complete bundle is intended for Crew Cab trucks.
Final Verdict
WeatherTech 4410321-446974 is a strong full-cab protection package for 2017–2022 Super Duty Crew Cab trucks with a front bench seat and no rear storage platform. Its over-the-hump front design protects an area commonly left exposed by separate mats, while the one-piece rear liner covers the broad Crew Cab floor.
Confirm the cab, seat, floor and storage configuration before ordering. Four qualifications for two floor liners sounds ridiculous, but not quite as ridiculous as forcing the wrong mat around a center console.
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