Child Fit Information

Installation Information

airplane

Airplane Use

This seat is FAA-approved.

Check out our full list of car seats for Airplane Travel here: FAA Approved Car Seats.

For help with all things airplane travel and car seats, check out our newest resource: Safe in the Sky.

Similar Car Seats

This car seat does not have any other versions.

Specifications

Diono Radian 3R Max Specifications

Product Information

Weight: 

Width: 16.9" if used as the center seat in a 3 across scenario, 18.2" if used as an outboard seat in a 3 across scenario, or 19.5" if not being used in a 3 across scenario

Highest Harness Height: 18"

Rear Facing Limits

Height: 18-44"

Weight: 5-50 lbs

Head Height Rules: at least 1.5″ below the top of the headrest 

Lower Anchor Connectors Weight Limit: 35 lbs

Forward-Facing Limits

Height: 30-57"

Weight: 26.5-65 lbs

Head Height Rules: ears must be below the top of the headrest

Lower Anchor Connectors Weight Limit: 40 lbs

No Back Booster Limits

Highest Belt Guide Settings

18"

High Back Booster Limits

Height: 40-57"

Weight: 40-120 lbs

Head Height Rules: ears must be below the top of the headrest

Other Important Details

Newborn Fit

not recommended; lowest harness height is too high for many newborns

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Expiration Limit

10 years 

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Crash Replacement Policy

replace after a moderate or severe crash

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Harness

rethread

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Lock-off

no

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Vehicle Seat Protectors

This brand allows Diono mats

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*Disclaimer: Safe in the Seat contributors are Nationally Certified Child Passenger Safety Technicians, but all reviews and materials reflect our opinions, not those of Safe Kids, NHTSA, or any other organization. We are not liable for actions taken based on this content. Always consult your car seat and vehicle manuals or a certified CPST for guidance.