# Thule Force 3 L US Rooftop Cargo Box

The Thule Force 3 L US is a rooftop cargo box for adding travel storage outside the vehicle cabin. Its listed capacity is 453.59 liters, and the claimed dual-side access and SlideLock closure may make loading and checking the lid more convenient.

- [Original product page](https://best-deals.pro/product/thule-force-3-l-us-rooftop-cargo-box)
- [View offer](https://best-deals.pro/visit/thule-force-3-l-us-rooftop-cargo-box)
- Market: US
- Language: en-US
- Currency: USD
- Model: Force
- Category: Cars & Motorcycles > Vehicle Accessories
- Price: 702.95 USD
- Previous price: 879.95 USD
- Discount: 20%
- Price checked: 2026-11-14T05:48:08.679Z
- Rating: 4.3 / 5
- Reviews: 50

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing claims access to cargo from both sides of the vehicle.
- SlideLock is described as separating opening and locking functions, with a lid-closure indication.
- The mounting system is claimed to signal when the box is safely attached with a click.

## Pros

- The listed 453.59-liter capacity provides substantial extra storage for road trips.
- Dual-side access can make reaching cargo more convenient when vehicle-side access is limited.
- The stated SlideLock functions distinguish opening from locking and indicate when the lid is closed securely.

## Cons

- Customer feedback is mixed on durability, with some describing the box as sturdy and others finding it flimsier than expected.
- Some customer feedback notes wind noise at higher speeds, while aerodynamic impressions are mixed.

## Specifications

### Identity
- Brand: Thule
- Model: Force
- Size: L Regular
- Color: Black
### Dimensions and capacity
- Dimensions: 80"L x 18"W x 38"H
- Capacity: 453.59 liters
### Materials and protection
- Material: Plastic
- Water resistance listed: Water Resistant
### Use and handling
- Recommended use: Travel
- Strap type: Basic
- Handle type: Web Handle
### Identification and support
- Model number: 645750
- Manufacturer warranty description: Limited Lifetime

## Before you buy

- The listing describes the mounting system as indicating secure attachment with a click and the SlideLock as indicating secure lid closure. Confirm the vehicle and roof-rack fit before purchase. The product description calls it Force XT, while the title identifies Force 3 L US, so confirm the exact model offered.

## In the box

- Rooftop cargo carrier box (Included)

## A good fit for

- Drivers needing additional rooftop storage for travel gear.
- SUV owners looking for a large listed capacity and access from either side of the vehicle.
- Buyers who value a lid system that indicates secure closure.

## Less suited to

- Buyers who need a product with uniformly positive reported durability feedback.
- Drivers who prioritize quiet aerodynamics, given reports of wind noise at higher speeds and mixed aerodynamic impressions.

## Customer feedback

Customer feedback highlights useful storage, easy installation, and fit on SUVs, with some customers describing the box as good quality. Durability impressions differ, value opinions are mixed, and aerodynamic feedback includes a report of wind noise at higher speeds. For buyers considering the listed 453.59-liter capacity and dual-side access, the positive storage comments are relevant, but the mixed sturdiness and noise reports are worth weighing. Aggregate ratings lean positive overall but do not establish how the box will perform for a particular vehicle or trip.
- Positive themes: Customers praise the storage capacity, easy installation, and fit on SUVs.
- Mixed feedback: Durability impressions range from sturdy to flimsier than expected.
- Mixed feedback: Opinions about value are mixed.
- Mixed feedback: Aerodynamic impressions are mixed, including a report of wind noise at higher speeds.

## Frequently asked questions

### How much storage capacity is listed?
The stated capacity is 453.59 liters. Customer feedback describes the storage as useful for freeing cabin space, though actual fit depends on the gear and vehicle.
### Can cargo be accessed from both sides?
The listing claims access from both sides of the vehicle.
### What does SlideLock do?
The listing describes separate locking and opening functions and says the system indicates when the lid is securely closed.
### Is the exact model identity clear?
The product title says Force 3 L US, while the description says Force XT. Confirm the model on the selected listing before ordering.

## Alternative options

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## Add-ons

- [Thule WingBar Evo, 135 cm roof bar 2-Pack Black \| Premium aerodynamic load bars for an exceptionally quiet ride and easy installation of accessories. 2-pack.](https://best-deals.pro/visit/thule-force-3-l-us-rooftop-cargo-box)
- [Thule Evo Raised Rail Foot Pack \| Evo Raised Rail Roof Rack Feet - Black, Easy Install & Secure Fit](https://best-deals.pro/visit/thule-force-3-l-us-rooftop-cargo-box)

## Images

![Thule Force 3 L US Rooftop Cargo Box — 1](https://best-deals.pro/i/qxYsa7IbPT4e7sXNpfry673GyEHijS6wXSMdUmsb9xrnbAj0uw_4JIEK9i3SUHpPMrHq2-I22aWbHdoUx3sUAGtrduAsdDBlwyMJHxjjkZok8JxHef75btUX.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 2](https://best-deals.pro/i/sifOtfDjI_PUuqxciLH75oGyDM_kqBItvBTo0T966ZRtAjhOeK1DYTvn_P8VVu5xh041RREq_o11ms0AIxF-tJgELu6Ts_EVOsavsyK031eNb7TiFvqPNMAy.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 3](https://best-deals.pro/i/ebWHGEN3KBmysOydNfawPCmxakzhcGx08uEoEaIvgjHToldWO2i1ry5rsI4O6ljc0tQBxSa6p9Q5PX6LkSk0ZMKiXp2adPP6OTfUK-7ahmJOkTOyUoMUUlC9.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 4](https://best-deals.pro/i/IBR39IgNSKehl7IF8e99qymvvQ_QeJ16FOUDo8ls4gDdFE1ckehfqJ5-7u-zndASoj21ycT72PQ91ZIEdOwQSxBsnfQKgdeCKZ7Ttgfjc_q1DhwHQ1_W_U35.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 5](https://best-deals.pro/i/VLWR0CZEoaMxO4B7DumHA8H-817ZEPFfG2RmNdZSFXeXXKTFtX0cdFHw4WXicTCqnhUt1LiJEYUtb-bX2yaPScCY9M-ogIMKAcP1VRIFMMh2EIZFHM-eqLiZ.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 6](https://best-deals.pro/i/F0BrW6QLhLH7yNuORirplk9veS-ZWI3ibjGgEVVghoYcls57hxo-dLBtrlKQH-9u-trUzwBP84bps-wdJ9ILW78a8AERz7xrhvl3hZC5oWOuIVOWZ7Y8gKP4.jpg)

![Thule Force 3 L US Rooftop Cargo Box — 7](https://best-deals.pro/i/R9cuJnen0B3ksYqv90KMGzi-RhXOhP7shQFRTpUWLL3maSlAD9I97K0MHX_2NkBNJvfjZKP8_QZSj006STSVT8x9bzfb5c_0fjz0PzE1JDwP77qujlsPDMTQ.jpg)