Knox › fit in › Toyota Tundra CrewMax

Will the UPPAbaby Knox fit in a 2014–2024 Toyota Tundra CrewMax?

Yes — the UPPAbaby Knox fits a 2014–2024 Toyota Tundra CrewMax.
The Knox is about 18.8" wide; the Tundra CrewMax's usable rear bench is about 56". It fits one rear position comfortably. Three across is tight (56.4" needed vs 56").

18.8"Knox width

56"Tundra CrewMax rear bench

Tightthree across

★★★☆☆NHTSA Ease-of-Use

Check the Knox on Amazon → All seats for a Tundra CrewMax

🔗 Amazon link is an affiliate link. As an Amazon Associate we earn from qualifying purchases — at no extra cost to you.

What fits this Tundra CrewMax

One seat, rear position: Yes. The Knox installs in an outboard rear position of a 2014–2024 Toyota Tundra CrewMax with room to spare.
Three across: Tight — three need ~56.4" against only ~56". A narrower seat is the better bet.
Modes this seat covers: rear-facing → forward-facing.
LATCH: lower anchors up to 35 lb; the Tundra CrewMax has 3 lower-anchor positions.

ℹ️ Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip. The Knox's width (UPPAbaby published spec (23.8"L x 18.8"W x 27.4-32.5"H); independent review measured 18.6 in, closely matching) and the Tundra CrewMax's rear-bench width (Typical for pickup — crew cab — approximate, verify install in your vehicle) are both approximate — confirm with a test-fit before buying.

Common questions

Will the UPPAbaby Knox fit in a 2014–2024 Toyota Tundra CrewMax?

Yes — the UPPAbaby Knox (18.8" wide) fits a single rear seating position in a 2014–2024 Toyota Tundra CrewMax. Three across is tight — its rear bench is about 56" and three of these would need 56.4".

Can you fit three Knoxs across a Tundra CrewMax?

Probably not — three Knoxs need about 56.4" but the Tundra CrewMax's usable bench is only about 56". Consider a narrower seat — see our narrowest-seats guide.

Sources: seat ratings & modes — NHTSA (pulled 2026-10-13); dimensions — manufacturer specs and owner measurements. Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip.