Sirona S › fit in › Subaru Forester
Will the Cybex Sirona S fit in a 2019–2024 Subaru Forester?
Yes — the Cybex Sirona S fits a 2019–2024 Subaru Forester.
The Sirona S is about 17" wide; the Forester's usable rear bench is about 51". It fits one rear position comfortably. Three across is tight (51" needed vs 51").
The Sirona S is about 17" wide; the Forester's usable rear bench is about 51". It fits one rear position comfortably. Three across is tight (51" needed vs 51").
17"Sirona S width
51"Forester rear bench
Tightthree across
★★★★★NHTSA Ease-of-Use
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What fits this Forester
- One seat, rear position: Yes. The Sirona S installs in an outboard rear position of a 2019–2024 Subaru Forester with room to spare.
- Three across: Tight — three need ~51" against only ~51". A narrower seat is the better bet.
- Modes this seat covers: rear-facing → forward-facing.
- LATCH: lower anchors up to 35 lb; the Forester has 2 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 Sirona S's width (Cybex published spec (~17 in at base; approximate)) and the Forester's rear-bench width (Subaru dimensions + owner measurements (approx)) are both approximate — confirm with a test-fit before buying.
Common questions
Will the Cybex Sirona S fit in a 2019–2024 Subaru Forester?
Yes — the Cybex Sirona S (17" wide) fits a single rear seating position in a 2019–2024 Subaru Forester. Three across is tight — its rear bench is about 51" and three of these would need 51".
Can you fit three Sirona Ss across a Forester?
Probably not — three Sirona Ss need about 51" but the Forester's usable bench is only about 51". Consider a narrower seat — see our narrowest-seats guide.
Sources: seat ratings & modes — NHTSA (pulled 2026-06-17); 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.