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Thule Force 3 M

Name: Thule Force 3 M
Brand: Thule
Price: 829.95 USD
Availability: InStock
Rating: 4.7

Mid-range roof box with SlideLock and tool-free mounting

Last reviewed: March 2026

cargo_carrierroof_crossbarScore: 93/100

At a glance

Quick Specs

Interior Volume14 cu ft

Opening SideDual Side

Weight Capacity165 lbs

Why this product

Why the Thule Force 3 M?

At 13 cu ft and 37 lbs, the Force 3 M is a solid entry-level Thule box — Quick-Grip mounting, central lock, 165 lb capacity. Here's the thing: for weekend trips and ski season, 13 cu ft handles two people's gear comfortably without the bulk of a larger box. The downside? Single-side opening, and the ABS construction feels less premium than the Motion line.

Detailed specs

Full Specifications

Interior Volume	14 cu ft
Opening Side	Dual Side
Dual-Side Opening	No
Weight Capacity	165 lbs

Aerodynamic Profile	Yes
Box Weight	37 lbs
Security Rating	High
Lock Included	Yes

Low Profile	No
Mounting Hardware Included	Yes
Noise Rating	Moderate

Best prices

Where to Buy

Retailer	Price	Status
Amazon US	Check price	Check availability	Check Price

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Performance analysis

Insights for Thule Force 3 M

How It Compares

vs. average in cargo_carrier

Score Breakdown

Category Position

Price vs. score for all cargo_carrier

Fitment

Vehicle Compatibility

Chevrolet

Model	Years	Fit	Requirements
Tahoe(5th Gen)	2021+	good	Crossbars needed

Ford

Model	Years	Fit	Requirements
Escape(4th Gen)	2020+	good

Community feedback

What Users Say

Amazon

4.5/5

Based on 1567 reviews

83% positive7% negative

Common praises

“Great mid-size option”
“Tool-free mount”
“Weatherproof”

Common complaints

“Wind noise at high speed”
“Can affect fuel economy”

Alternatives

Top Comparisons

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Common questions

Frequently Asked Questions

The Thule Force 3 M uses a universal crossbar mount that clamps onto most factory and aftermarket roof racks. Check your specific vehicle in our compatibility checker below.

The Thule Force 3 M is rated for 165 lbs. But your roof's dynamic load limit is the real ceiling — most vehicles cap at 150-200 lbs including the box weight. Check your manual.

You'll hear a low hum above 65 mph — typical for roof boxes. The aerodynamic shape keeps it manageable. Proper crossbar spacing helps too.

Yes, but it's easier with two people. The box is bulky — lifting it onto the roof solo is the hardest part. Mounting hardware takes 20-30 minutes.

Yes. The hard shell keeps everything dry. ABS plastic is inherently waterproof — sealed seams and weather stripping handle heavy rain and car washes. Won't rust or corrode either.

You can, but don't. An empty roof box adds drag and hurts fuel economy by 10-25%. It also lowers garage clearance. Remove it between trips. Most boxes mount/dismount in 15-20 minutes.

Expect a 10-25% fuel economy hit at highway speeds when loaded. The aerodynamic shape helps versus an open basket, but physics is physics. Remove it between trips. That's free money back in your tank.

Answered by our expert team, MyCargoRacks

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Performance analysis