Graco 4Ever DLX Slim 4-in-1

The Graco 4Ever DLX Slim 4-in-1 rear-faces up to 40 lb, forward-faces up to 65 lb, and is 18.9 in wide, per Graco. Graco slim-profile all-in-one seat with rear-facing harness, forward-facing harness, highback booster and backless booster modes. Graco lists model 2215504 with SnugLock installation, 10 headrest positions and 6 recline positions.

  • $369.99List price
  • 40 lbRear-facing to
  • 65 lbHarness to
  • 100 lbBooster to

When does it expire?

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4Ever DLX Slim 4-in-1: key facts

  • The Graco 4Ever DLX Slim 4-in-1 rear-faces from 4 to 40 lb; forward-faces with a harness from 26.5 to 65 lb and up to 49 in tall; works as a booster from 40 to 100 lb and 43 to 57 in tall, per Graco.
  • It installs with SnugLock with vehicle seat belt or LATCH.
  • Graco says it expires 10 years after the date of manufacture.
  • It's 18.9 in wide at the widest point and weighs 27.5 lb.

From Graco's published specs. Always follow the limits on your seat's labels.

How the 4Ever DLX Slim 4-in-1 stacks up

Against the 57 all-in-one car seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Expiration10 years

The same as most all-in-one car seats (10 years).

This one
9 yearsmiddle 10 years12 years
Rear-facing limit40 lb11th highest rear-facing limit of 57

The same as most all-in-one car seats (40 lb).

This one
40 lbmiddle 40 lb50 lb
Width18.9 in13th narrowest of 33

Within the typical range for all-in-one car seats (18.3 in to 19.5 in).

This one
16.7 inmiddle 19 in21.5 in
Weight27.5 lb24th lightest of 35

Within the typical range for all-in-one car seats (20 lb to 29.3 lb).

This one
12.2 lbmiddle 25.2 lb35 lb
Price$369.9936th lowest price of 54

Within the typical range for all-in-one car seats ($229.99 to $399.99).

This one
$99middle $319.99$799.95

What sets the 4Ever DLX Slim 4-in-1 apart

Measured against the 57 all-in-one car seats we compare, from each maker's published specs.

  • Width: 18.9 inin the middle half of the 33 all-in-one car seats that publish it (18.3 in to 19.5 in)
  • Weight: 27.5 lbin the middle half of the 35 all-in-one car seats that publish it (20 lb to 29.3 lb)

Next to its closest matches

Listed features

  • Four modes in one seat
  • SnugLock installation with seat belt or LATCH
  • Push-button InRight LATCH
  • 18.9 in width per Graco

Worth checking

  • 27.5 lb seat weight per Graco

Where to buy the 4Ever DLX Slim 4-in-1

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good to know
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Graco 4Ever DLX Slim 4-in-1
TypeAll-in-one
List price$369.99
Rear-facing weight4–40 lb
Forward-facing weight26.5–65 lb
Forward-facing heightUp to 49 in
Booster weight40–100 lb
Booster height43–57 in
Seat weight27.5 lb
Width18.9 in
InstallationSnugLock with vehicle seat belt, LATCH
Load legNo
Anti-rebound barNo
RotatesNo
Recline positions6
Expires after10 years

Compare the 4Ever DLX Slim 4-in-1 with

How each closest rival differs from the 4Ever DLX Slim 4-in-1, from the makers' specs.

Ask the meadow

4Ever DLX Slim 4-in-1: questions answered

From Graco's published specs, last checked 2026-11-06.

Does the Graco 4Ever DLX Slim 4-in-1 rear-face longer than other all-in-one seats?

15 of the 70 all-in-one seats we track rear-face to a higher weight than its 40 lb. The highest is the Britax One4Life ClickTight All-in-One at 50 lb. NHTSA: stay rear-facing "until he or she reaches the top height or weight limit allowed by your car seat's manufacturer." (NHTSA)

Will the Graco 4Ever DLX Slim 4-in-1 fit three across or in a small car?

It's narrower than 58% of the all-in-one seats we track, at 18.9 in. The narrowest is the Chicco Fit3x ClearTex Ultra-Slim All-in-One at 16.7 in. Fit depends on your vehicle; check each seat's manual and your vehicle manual. Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

4Ever DLX Slim 4-in-1 or Kani 4-in-1: what's different?

By the makers' specs, the Kani 4-in-1 has no added flame retardants (maker's claim); the 4Ever DLX Slim 4-in-1 lists for $10 less. See every spec side by side.

Is it OK to buy a used 4Ever DLX Slim 4-in-1?

NHTSA publishes guidance on used car seats on its car seat page. Graco lists a lifespan of 10 years from manufacture for this model. Check the label and the maker's instructions, and ask your pediatrician about your child.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

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Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.