Marathon ClickTight › fit in › Kia Telluride

Will the Britax Marathon ClickTight fit in a 2020–2024 Kia Telluride?

Yes — the Britax Marathon ClickTight fits a 2020–2024 Kia Telluride.
The Marathon ClickTight is about 18.5" wide; the Telluride's usable rear bench is about 54". It fits one rear position comfortably. Three across is tight (55.5" needed vs 54").

18.5"Marathon ClickTight width

54"Telluride rear bench

Tightthree across

★★★★☆NHTSA Ease-of-Use

Check the Marathon ClickTight on Amazon → All seats for a Telluride

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What fits this Telluride

One seat, rear position: Yes. The Marathon ClickTight installs in an outboard rear position of a 2020–2024 Kia Telluride with room to spare.
Three across: Tight — three need ~55.5" against only ~54". A narrower seat is the better bet.
Modes this seat covers: rear-facing → forward-facing.
LATCH: lower anchors up to 40 lb; the Telluride 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 Marathon ClickTight's width (Britax published spec (~18.5 in)) and the Telluride's rear-bench width (Kia dimensions + owner measurements (approx); roomy 3-across-friendly 2nd row) are both approximate — confirm with a test-fit before buying.

Common questions

Will the Britax Marathon ClickTight fit in a 2020–2024 Kia Telluride?

Yes — the Britax Marathon ClickTight (18.5" wide) fits a single rear seating position in a 2020–2024 Kia Telluride. Three across is tight — its rear bench is about 54" and three of these would need 55.5".

Can you fit three Marathon ClickTights across a Telluride?

Probably not — three Marathon ClickTights need about 55.5" but the Telluride's usable bench is only about 54". Consider a narrower seat — see our narrowest-seats guide.

Sources: seat ratings & modes — NHTSA (pulled 2026-06-18); 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.