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Peg Perego Primo Viaggio (4-35 K)

An infant car seat with 2 modes: rear-facing infant (base) 4 to 35 lb, up to 32 in; rear-facing infant (vehicle belt, no base) 4 to 22 lb, up to 32 in.

At a glance

Fits children from 4 to 35 lb
Up to 32 in tall
2 modes: rear-facing infant (base), rear-facing infant (vehicle belt, no base)
Anti-rebound protection
Seat weighs 8.2 lb
7-year usable life
Certified for aircraft use

Amazon listing not verified yet

Peg Perego lists this seat on its US site. Buy from Peg Perego or an authorized retailer, and confirm the exact model number before you buy.

Peg Perego product page Manual

Specifications checked against Peg Perego’s US site and manual on September 17, 2026. Not hands-on tested. How I research

Who the Primo Viaggio (4-35 K) fits

This seat covers 2 stages, and a child has to meet every limit of the stage they are in. Peg Perego gives it a 7-year life from the date of manufacture, so check the date label before using a hand-me-down.

Rear-facing infant (base)4 to 35 lb · Up to 32 in: The child faces the back of the car, which keeps the head, neck and spine supported in a frontal crash. Keep this mode as long as the child fits it.
Rear-facing infant (vehicle belt, no base)4 to 22 lb · Up to 32 in: The child faces the back of the car, which keeps the head, neck and spine supported in a frontal crash. Keep this mode as long as the child fits it.

A parent lifting a newborn beside an empty rear-facing infant car seat

What are the Primo Viaggio (4-35 K) weight, height and age limits?

Peg Perego Primo Viaggio (4-35 K) limits by mode
Mode	Child weight	Child height	Minimum age	Conditions
Rear-facing infant (base)	4 to 35 lb	Up to 32 in	Not published	Manual: 4-35 lb (installation method not legible in extracted text for first line) and 4-35 lb with vehicle belt with base
Rear-facing infant (vehicle belt, no base)	4 to 22 lb	Up to 32 in	Not published	—

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

Primo Viaggio (4-35 K) specifications

Seat weight: 8.2 lb
Width: Not published
Usable life: 7 years
Aircraft use: Certified for aircraft (see manual for which modes)
Carrier weight note: 8.2 lbs without hood and inserts

An empty car seat installed on a back seat, seen through an open car door

Will it fit your car?

Peg Perego does not publish a width for this seat, so measure your back seat and compare it with the seat in a store before buying. It weighs 8.2 lb, which matters if you will move it between cars or carry it through an airport.

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.
Certified for aircraft use, so it can travel as a seat rather than checked baggage.

What features does the Primo Viaggio (4-35 K) have?

Anti-rebound bar (base)
Base included
Baseless install with vehicle belt

Colors listed in the US

Mercury, True Black.

Is the Primo Viaggio (4-35 K) 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

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.
Confirm the exact version. Colors, retail exclusives and model numbers change limits more often than you would expect; Peg Perego lists 2 colors of this seat.
Read the manual before you buy, not after. It is linked above and holds the fit rules, the install methods and the expiry.
Check recalls by model number and date of manufacture, and register the seat with Peg Perego so you hear about the next one.

Sources

Other Peg Perego infant car seats

Model	Top child weight	Seat weight	Width	Usable life
Primo Viaggio (4-35 K) (this seat)	35 lb	8.2 lb	—	7 years
Primo Viaggio Lounge	30 lb	10.4 lb	—	7 years
Primo Viaggio Nido	30 lb	8.2 lb	—	7 years
Primo Viaggio Urban Mobility	30 lb	9.1 lb	17 in	7 years