Cosco Topside Booster Car Seat (BC214)

A backless booster seat with one mode: backless belt-positioning booster 40 to 100 lb, 43.4 to 57 in.

At a glance

  • Fits children from 40 to 100 lb
  • Up to 57 in tall
  • Backless belt-positioning booster only
  • 10-year usable life
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Specifications checked against Cosco’s US site and manual on . Not hands-on tested. How I research

Who the Topside Booster Car Seat (BC214) fits

This seat covers one stage. Cosco gives it a 10-year life from the date of manufacture, so check the date label before using a hand-me-down.

Backless belt-positioning booster40 to 100 lb · 43.4 to 57 in
Only the base is left, so the vehicle seat has to support the child’s back and head, and the belt guide sits at the hip.
A school-age child with a backpack beside an empty high-back booster

What are the Topside Booster Car Seat (BC214) weight, height and age limits?

Cosco Topside Booster Car Seat (BC214) limits by mode
ModeChild weightChild heightMinimum ageConditions
Backless belt-positioning booster40 to 100 lb43.4 to 57 inNot published

A child must meet every limit for the mode they use. The labels on your seat and its manual are the final word.

Topside Booster Car Seat (BC214) specifications

Seat weight
Not published
Width
Not published
Usable life
10 years
Aircraft use
Not certified for aircraft
An empty car seat installed on a back seat, seen through an open car door

Will it fit your car?

Cosco does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying.

  • Check your vehicle manual for lower anchor positions and any head-restraint rules.
  • Rear-facing seats need front-seat room: try the install behind the driver before you commit.
  • Not certified for aircraft use: plan on gate-checking it or using a different seat to fly.

What features does the Topside Booster Car Seat (BC214) have?

  • Backless booster

Colors listed in the US

Black Gem, Navy Gem, Purple Gem.

Is the Topside Booster Car Seat (BC214) recalled?

No campaign in the current NHTSA child-restraint data names this model family, and I have not run a separate review for it. Check your seat’s model number and date of manufacture before use.

NHTSA recall search · Recent car seat recalls

Before you buy

  1. Weigh and measure your child. The limits above are the manufacturer’s, and a child has to meet all of them for the mode they will use.
  2. Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; Cosco lists 3 colors of this seat.
  3. Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
  4. Check recalls by model number and date of manufacture, and register the seat with Cosco so you hear about the next one.

Sources

Other Cosco booster seats

ModelTop child weightSeat weightWidthUsable life
Topside Booster Car Seat (BC214) (this seat)100 lb10 years
Finale 2-in-1 Booster Car Seat100 lb10 years
Finale DX 2-in-1 Booster Car Seat100 lb10 years
Pronto! Trend Belt-Positioning Booster Car Seat100 lb10 years
Rise LX Booster Car Seat100 lb10 years
Topside Booster Car Seat (BC030)100 lb