Package Contents
| Component | Part number | Coverage |
|---|---|---|
| First-row FloorLiners | 4417301 | Driver and front passenger |
| Second-row FloorLiner | 4417303 | Hybrid-specific rear floor |
The set contains three molded pieces: two front liners and one full-width rear liner. A cargo liner is not included.
Product Specifications
| Specification | Details |
|---|---|
| Brand | WeatherTech |
| Combined part number | 441730-1-3 |
| Front part number | 4417301 |
| Rear part number | 4417303 |
| Product line | FloorLiner |
| Color | Black |
| Coverage | First and second rows |
| Vehicle generation | Second-generation AZ20 NX |
| Powertrains | Hybrid and plug-in hybrid |
| Material | High-Density Tri-Extruded material |
| Fit type | Vehicle-specific |
| Flooring | Factory carpet |
| Manufacturing | Designed and manufactured in the USA |
| Warranty | Limited lifetime warranty |
Hybrid-Specific Rear Fitment
The NX 350h and NX 450h+ package electrical and hybrid components differently from the gasoline NX models. These differences can alter the rear floor and center-tunnel contours even when the cabins look nearly identical.
WeatherTech pairs front component 4417301 with rear component 4417303 for the hybrid applications. This is why buyers should verify the complete set number rather than matching only the front pieces.
When selecting any vehicle-specific component, consult our OEM replacement parts guide for additional fitment checks.
Laser-Measured Interior Coverage
WeatherTech digitally measures the NX footwells to create liners that follow the surrounding floor geometry. Raised walls protect the front, rear and sides of each footwell instead of covering only the flat area underneath passengers’ shoes.
Protection extends around:
- Driver and passenger footwells
- Dead-pedal area
- Center-console edges
- Door-side carpet
- Areas below the front seats
- Second-row center tunnel
The liners are designed to contain:
- Rainwater
- Snow and slush
- Road salt
- Mud and sand
- Food debris
- Spilled drinks
- Everyday shoe wear
HDTE Construction
WeatherTech’s traditional FloorLiner uses a proprietary High-Density Tri-Extruded material. Its rigid core helps each liner maintain its molded shape, while the textured upper surface supplies traction.
The underside creates friction against the factory carpet. Factory-compatible retention points keep the driver-side liner secured and away from the pedals.
This is the standard FloorLiner, not FloorLiner HP. The HP version uses a softer, rubber-like TPE compound, while this set has a firmer molded feel.
Fluid Channels and Containment Areas
Molded channels carry liquid and debris into lower reservoirs, reducing movement during acceleration, braking and cornering. Raised perimeter walls keep normal spills from reaching the surrounding carpet.
The liners can then be removed and emptied outside the vehicle. Carry them level unless the plan is to redecorate the Lexus carpet with muddy water.
Installation Instructions
Installation requires no drilling or permanent modifications:
- Remove every original and aftermarket floor mat.
- Vacuum the exposed carpet.
- Position the driver-side liner over the factory retention points.
- Lock the anchors securely.
- Install the front-passenger liner.
- Place the full-width rear liner beneath the front seats.
- Check clearance around seat tracks, rear vents and wiring.
- Verify unrestricted accelerator and brake-pedal travel.
Never stack WeatherTech liners over the factory carpet mats. Stacked mats can shift or prevent the retention system from engaging correctly.
Cleaning and Maintenance
Remove the liners before deep cleaning:
- Shake or vacuum away loose debris.
- Rinse with water.
- Apply mild detergent or an approved liner cleaner.
- Scrub stubborn residue with a soft brush.
- Rinse completely.
- Let the liners dry before reinstalling them.
Avoid oily or silicone-based interior dressings. They can create a dangerously slippery surface.
For other cabin-restoration projects, see our complete dashboard repair guide.
Frequently Asked Questions
What does WeatherTech 441730-1-3 fit?
It fits 2022–2026 Lexus NX 350h Hybrid and NX 450h+ Plug-in Hybrid models.
Does it fit the Lexus NX 350?
No. The NX 350 is the turbocharged gasoline model and uses a different complete-set application.
Does it fit the Lexus NX 250?
No. This package is specifically cataloged for the NX 350h and NX 450h+ electrified models.
Does it fit an NX 450h+ F Sport Handling?
Yes, provided WeatherTech’s vehicle selector confirms the exact year and trim.
Does it include a cargo liner?
No. It covers the first and second seating rows only.
Is the second-row liner one piece?
Yes. Component 4417303 provides full-width rear-floor coverage for the compatible hybrid configuration.
Are these soft rubber mats?
No. Standard WeatherTech FloorLiners use a relatively firm HDTE construction. FloorLiner HP is the softer alternative.
Can they be installed over the Lexus carpet mats?
No. Remove all original mats before installation.
Final Verdict
WeatherTech 441730-1-3 is the correct first- and second-row FloorLiner package for 2022–2026 Lexus NX 350h and NX 450h+ models. Its hybrid-specific rear liner, raised walls and molded channels provide considerably more containment than conventional flat carpet mats.
Confirm the model badge before ordering: NX 350h or NX 450h+. Owners of an NX 250 or NX 350 need a different set.
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