Thule Motion 3 L Cargo Box – 16 cu ft of Aerodynamic, All-Season Roof Storage
The Thule Motion 3 L adds serious, weather-protected capacity without bulky looks or excess wind noise. With dual-side opening, secure SlideLock, and the fast, tool-free PowerClick mount, it’s a premium roof box for year-round travel across Canada—ski trips, camping weekends, and long family road adventures.
Optimized aerodynamics help reduce drag and highway noise, while a forward mounting position improves rear-hatch clearance on many vehicles. Grippy handles and lid lifters make opening and closing easy even with gloves on.
Key Features & Specifications
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Volume: 16 cu ft (≈ 450 L) — typically fits 5–7 pairs of skis (up to ~180 cm) or 3–5 snowboards
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External Dimensions: ~76.9 × 35.0 × 16.7 in (≈ 195 × 89 × 42 cm)
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Internal Dimensions: ~71.8 × 28.2 × 13.9 in (for packing guidance)
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Load Capacity: up to 165 lb (always follow your vehicle/rack limits)
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Opening: Dual-side access with SlideLock security and closure indicator
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Mounting: PowerClick quick-mount with built-in torque “click” for a secure fit
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Weight: ~43.6 lb (two-person lift recommended)
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Rack Fit: Works with most aero, square, round and factory crossbars within Thule’s bar-spread guidance
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Model: Thule Motion 3 L (639750)
Who It’s For (Target Audience)
Ideal for active families, skiers/snowboarders, campers and road-trippers who want reliable, easy-to-use roof storage with premium security and weather protection. A great all-rounder for SUVs, wagons and larger sedans with quality crossbars.
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Compare Thule Roof Boxes
Thule Motion 3 L – Frequently Asked Questions
How much gear fits in the Motion 3 L?
About 16 cu ft (≈ 450 L) — typically 5–7 pairs of skis (up to ~180 cm) or 3–5 snowboards, plus duffels and boots.
Is it easy to install and remove?
Yes. The PowerClick quick-mount “clicks” when tight, so you know it’s secure. Two people recommended for lifting on/off.
Can I open it from both sides?
Yes. It features dual-side opening with the SlideLock system that indicates secure closure.
Will the rear hatch clear?
On many vehicles, yes. The Motion 3’s forward position improves hatch clearance—always check your rack/vehicle combo.
What’s the maximum load?
Up to 165 lb, but never exceed the load limits of your vehicle or roof rack system (use the lowest rating).
What crossbars will it fit?
Works with most aero, square, round and factory crossbars within Thule’s recommended bar-spread. Verify fit before purchase.