WeatherTech Under Seat Storage System 4S001 Review
By Tony B. Hensel | Last Updated: June 6, 2026
The WeatherTech Under Seat Storage System 4S001 gives Ford F-150 owners a simple way to use wasted space under the rear seat. It is made from thermoplastic elastomer, has three compartments, and installs without drilling or tools. This review looks at fit, storage use, buyer feedback, pros, cons, and value so you can decide if it suits your truck.
Verdict
Best for: Ford F-150 owners who want neat under-seat storage without a complex install.
Bottom line: The WeatherTech 4S001 is a practical storage upgrade if it fits your exact F-150 model. Its three-compartment layout helps control loose tools, small gear, and emergency items.
Key Takeaways
- The WeatherTech Under Seat Storage System 4S001 is made for select Ford F-150 models.
- It uses three compartments to help organize tools, emergency gear, and personal items.
- The thermoplastic elastomer material is described as durable, chemical-resistant, recyclable, and odorless.
- Installation is simple because it does not require tools, drilling, or chemicals.
- The source article lists a 4.5-star average rating from 226 customer ratings at review time.
Key Specifications
| Specification | Detail |
|---|---|
| Brand | WeatherTech |
| Model | 4S001 |
| Product Type | Under-seat truck storage system |
| ASIN | B07S3DC6L3 |
| Material | Thermoplastic elastomer |
| Compartments | Three compartments |
| Finish | Matte black |
| Weight | 9.33 pounds |
| Installation | No tools or drilling required |
| Listed Compatibility | Select Ford F-150 models listed in the source article |
What Is the WeatherTech Under Seat Storage System?
The WeatherTech Under Seat Storage System is a molded storage tray for the area under the rear seat of select Ford F-150 trucks. It helps keep loose cargo in one place instead of letting items roll around the cabin.
The three-compartment layout gives you separate areas for different items. You can keep tools in one section, emergency gear in another, and small daily-use items in the third. This design is helpful if your truck often carries work gear, family items, or outdoor equipment.
Product Features and Specifications
The WeatherTech Under Seat Storage System, model 4S001, uses a rectangular design made to fit under the rear seat. Its thermoplastic elastomer construction gives it a firm but flexible feel. The source article also describes the material as chemical-resistant, recyclable, and odorless.
The matte black finish suits most truck interiors. It also helps the storage system blend into the cabin without drawing much attention. Since it weighs 9.33 pounds, most users should be able to position it during installation without much trouble.
The main benefit is simple organization. Instead of leaving tools, straps, small electronics, or emergency supplies loose on the floor, you get a cleaner storage area under the seat.
Compatibility and Installation
Fitment is the most important detail before buying this storage system. The source article says it fits select Ford F-150 models, including 2009-2014 and 2021-2025 Ford F-150s. It also lists the 2022-2025 Ford F-150 Lightning and 2023 Ford F-150 Raptor.
You should still confirm fitment on the current Amazon page before ordering. Truck trims, cab layouts, seat designs, and model-year changes can affect under-seat space.
Installation is one of the easiest parts of this product. The article states that it requires no tools, drilling, or chemicals. That makes it a useful option for drivers who want extra storage without making permanent changes to the truck.
Who It Is For
This WeatherTech storage system is a good fit for F-150 owners who want a cleaner cabin. It works well if you carry tools, jumper cables, tow straps, cleaning supplies, sports gear, or small emergency items.
It also suits drivers who do not want to drill into the truck or install a complex organizer. The drop-in style keeps the upgrade simple.
If you use your truck for work, family travel, towing, camping, or weekend projects, the extra organization can make daily use easier.
Who Should Skip It
Skip this product if your truck is not listed as compatible. A storage tray like this must match the under-seat area closely. A poor fit can reduce storage value and may interfere with seat movement.
You may also want to skip it if you need a lockable storage box. This WeatherTech system helps with organization, but the source article does not describe it as a locking security box.
It may not suit drivers who need full waterproof protection. The material may resist moisture, but the product is not described as fully waterproof in the source article.
Key Features
Three-Compartment Layout
The three compartments make sorting easier. You can separate clean items from dirty tools, or keep emergency gear away from daily-use items. This layout reduces clutter and saves time when you need to find something quickly.
Durable TPE Material
The product is made from thermoplastic elastomer. The source article describes this material as durable, chemical-resistant, recyclable, and odorless. That matters in a truck cabin, where storage gear may face dirt, cleaners, fluids, and changing temperatures.
No-Tool Installation
The system installs without tools or drilling. This is helpful for owners who want a clean upgrade and do not want to modify the truck interior.
Low-Profile Black Finish
The matte black finish gives the storage system a simple look. It should sit under the seat without making the interior feel crowded or messy.
Real-World Use
In daily use, this storage system helps control the items that often end up under truck seats. It can hold small tools, gloves, tie-downs, chargers, first-aid items, cleaning supplies, and compact outdoor gear.
For work use, the compartments help separate tools and small hardware. For family use, it can hold travel items, wipes, umbrellas, or spare accessories. For outdoor use, it can store small recovery gear, straps, and safety items.
The system should have minimal effect on passenger legroom because it uses the space under the seat. Still, owners should confirm the fit for their cab style before buying.
What Buyers Are Saying
Based on the customer feedback summarized in the source article at review time:
- Praise: Several buyers like the three-compartment design because it helps organize the truck interior.
- Praise: Buyers also mention easy installation because no tools or drilling are needed.
- Watch-out: Fitment needs careful checking because this storage system is made for specific Ford models.
Pros and Cons
Pros
- Three compartments make tools, gear, and small items easier to sort
- Thermoplastic elastomer material is described as durable and chemical-resistant
- No-tool installation keeps setup simple for most owners
- Matte black finish blends well with many truck interiors
- Uses under-seat space without taking up the main cabin area
Cons
- Only fits select Ford F-150 models and must be checked before purchase
- Not described as a lockable security storage box
- Not specifically advertised as fully waterproof in the source article
Is It Worth the Price?
The WeatherTech 4S001 can be worth buying if you want a clean, fitted storage solution for a compatible Ford F-150. It gives you a more organized cabin without permanent installation work.
The value depends on fitment and how much you use your under-seat space. If your truck often carries small tools, safety gear, or daily accessories, the three-compartment design can make the cabin easier to manage.
If you only need occasional storage or need a locking box, another option may be a better match.
Alternatives to Consider
You can also compare the WeatherTech 4S001 with other under-seat storage products before buying. Similar options may include the Husky Liners GearBox Under Seat Storage Box, DU-HA Underseat Storage, and Rough Country Under Seat Storage. These are mentioned for context only and may fit different trucks, cab styles, or storage needs.
Frequently Asked Questions
Is the WeatherTech Under Seat Storage System waterproof?
The source article does not say it is fully waterproof. Its thermoplastic elastomer material may offer some moisture resistance, but you should not treat it as a sealed waterproof box.
Can this storage system be used in vehicles other than listed models?
It is made for specific Ford F-150 models. Using it in another vehicle may cause fit problems, so check the current Amazon fitment tool before buying.
How does the storage system affect legroom in the vehicle?
It is designed to use space under the rear seat, so it should have minimal effect on legroom when installed in a compatible truck. Fitment still matters because cab and seat layouts can vary.
What items can be stored in the compartments?
You can store small tools, emergency supplies, sports gear, cleaning items, tie-downs, personal belongings, and compact electronics. Avoid storing items that need a sealed or lockable box.
Are there any color options available besides black?
The source article describes the product in black. Check the current Amazon listing before buying if color choice is important to you.
Does it require drilling?
No. The source article states that installation requires no tools or drilling.
Final Verdict
The WeatherTech Under Seat Storage System 4S001 is a useful upgrade for compatible Ford F-150 owners who want cleaner storage under the rear seat. Its three compartments, TPE construction, matte finish, and no-tool installation make it practical for daily truck use.
The main point to check is fitment. Confirm your exact truck model, year, cab style, and seat layout before ordering. If it fits your F-150, this WeatherTech storage system can help keep your cabin cleaner and more organized.
