Trooper Slim 3-in-1 › fit in › GMC Sierra 1500 Crew Cab

Will the Baby Trend Trooper Slim 3-in-1 fit in a 2019–2024 GMC Sierra 1500 Crew Cab?

Yes — the Baby Trend Trooper Slim 3-in-1 fits a 2019–2024 GMC Sierra 1500 Crew Cab.
The Trooper Slim 3-in-1 is about 17.8" wide; the Sierra 1500 Crew Cab's usable rear bench is about 56". It fits one rear position comfortably. Three even fit across the back (53.3" needed vs 56").

17.8"Trooper Slim 3-in-1 width

56"Sierra 1500 Crew Cab rear bench

Yesthree across

★★★☆☆NHTSA Ease-of-Use

Check the Trooper Slim 3-in-1 on Amazon → All seats for a Sierra 1500 Crew Cab

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What fits this Sierra 1500 Crew Cab

One seat, rear position: Yes. The Trooper Slim 3-in-1 installs in an outboard rear position of a 2019–2024 GMC Sierra 1500 Crew Cab with room to spare.
Three across: Yes — three need ~53.3" against a ~56" bench. Test-fit; three-across is decided by half-inches.
Modes this seat covers: rear-facing → forward-facing.
LATCH: lower anchors up to 60 lb; the Sierra 1500 Crew Cab 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 Trooper Slim 3-in-1's width (Baby Trend published spec 17.75 in; a second retailer listing (Canadian Tire) confirms 17.5-17.75 in widest point) and the Sierra 1500 Crew Cab'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 Baby Trend Trooper Slim 3-in-1 fit in a 2019–2024 GMC Sierra 1500 Crew Cab?

Yes — the Baby Trend Trooper Slim 3-in-1 (17.8" wide) fits a single rear seating position in a 2019–2024 GMC Sierra 1500 Crew Cab. Three of them also fit across its roughly 56" rear bench.

Can you fit three Trooper Slim 3-in-1s across a Sierra 1500 Crew Cab?

Yes — three Trooper Slim 3-in-1s need about 53.3" and the Sierra 1500 Crew Cab's usable bench is about 56". It's close, so test-fit before buying.

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.