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Part #: 16915
SKU #: DDH1051

Diono Radian RXT Convertible Car Seat


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List Price:  $339.99

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Arrives for Christmas to Woodbridge, NJ 02108 (Change)


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The Radian RXT is a highly versatile car seat that could be the only seat you'll ever need. It comfortably seats rear-facing children then converts to a booster for children. It's built for strength and safety with a steel alloy frame, reinforced sidewalls, adjustable head support and our patented Safestop energy absorbing harness. EPS foam surrounds the child's head and body to provide complete side impact protection. Our unique SuperLATCH system makes installation easy. The RadianRXT is NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions. The RadianRXT sits low on a vehicle seat for easy child boarding, features memory foam padding and infant support pillows. In addition to all this versatility, it folds flat for travel and storage, has a 10 year life and offers amazing safety, comfort and convenientce your child won't outgrow.

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  • Steel alloy frame and aluminum reinforced sides
  • Safe stop energy absorbing harness
  • Fits 3 across in a mid-size vehicle and offers more shoulder space
  • 5 Shoulder and 3 buckle positions for custom fit
  • Expandable sides and longer seat bottom for leg support and comfort
  • 12 Height positions for adjustable head support, 2 recline positions in forward-facing mode
  • Multi position cup holder system, 6 cup holders positions
  • Rear-facing: 5 - 45 lbs
  • Forward-facing: 20 - 80 lbs (and up to 57'') in a 5-point harness
  • Booster to 120 lbs
  • Able to hold up to 4 cup holders (1 included)
  • Radian collection
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Additional Documents


Weights & Dimensions

  • Overall Height - Top to Bottom: 28.5 Inches
  • Overall Width - Side to Side: 17 Inches
  • Overall Depth - Front to Back: 10 Inches
  • Back Height: 28.5 Inches
  • Seat Height: 28.5 Inches
  • Seat Width: 15 Inches
  • Seat Depth: 13 Inches
  • Overall Product Weight: 29 Pounds


Shell Material Details: Steel, AluminumRotating Arm Rests: Yes
Number of Reclining Options: 2Machine Washable: Yes
Machine Washable Cover: YesNumber of Cup Holders: 1
Assembly Required: NoProduct Type: Convertible car seat
Adjustable Headrest: YesRemovable Cup Holders: Yes
JPMA Certified: YesRemovable Headrest: Yes
Cup Holder Side: MovableASTM Certified: Yes
General Conformity Certified: YesNHTSA Certified: Yes
Shell Material: Plastic; MetalNational CPS Certified: Yes
HSRC Compliant: YesCushion Fill Material: Foam
FMVSS 213 Compliant: YesTheme: Cars
FMVSS 302 Compliant: YesFAA Inversion Compliant: Yes
Number of Items Included: 1EPP Compliant: Yes
U.S. NCAP Tested: YesNon Slip: Yes
Weight Capacity: Rear facing (Min): 120 PoundsWeight Capacity: Rear facing (Max): 45 Pounds
Weight Capacity: Forward facing (Min): 20 PoundsWeight Capacity: Forward facing (Max): 80 Pounds
Weight Capacity: Booster (Max): 120 PoundsLifestage: Baby; Kid
Maximum Child Height: 57 InchesOptional Car Base: No
Base Included: NoOrientation: Reversible
Headrest: YesSide Support: Yes
Arm Rests: YesReclines: Yes
Harness Type: 5 PointPadded Straps: Yes
Snack Tray Included: NoFoldable: Yes
Carrying Handle Included: NoSide Storage Pockets: No
Removable Seat Cushion: YesRemovable Cover: Yes
Cup Holders Included: YesCommercial Use: Yes

“Hi, how easy is it to take the fabric off to the car seat?” asked by Tuyen

"Hi Tuyen, the cover is simple to remove." Ashley from Wayfair


“Hi, is this car seat available in color storm?” asked by Asha

"Hi Asha, yes, this car seat is available in color storm." Marty from Wayfair


“Hi, what is the seat's fabric?” asked by Nickie

"Hi Nickie, the seat is upholstered with microfiber." Lisa from Wayfair

Still have questions about this product? We're here to help

When you buy a Diono Radian RXT Convertible Car Seat online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Diono Part #: 16915 here. If you have any questions about your purchase or any other Car Seats product for sale our customer service representatives are available to help.Whether you just want to buy a Diono Radian RXT Convertible Car Seat or shop for your entire home, Wayfair has a zillion things home.

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Return Policy

We want you to love it. If you don't, you may return your purchase within 30 days of delivery. All you need to do is visit our Self-Service Return Center for instructions. Return credits are issued within 24 hours once the item is received and inspected. Please note that shipping charges are non-refundable. The cost of return shipping will be deducted from your refund.

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Customer Reviews

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Average Overall Rating:
(based on 152 reviews)

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Happy baby!

 from Hawley, PA– Verified Buyer

My daughter loves this car seat. We have an earlier version on our other car, but it is clear that she prefers this one. I like the head support because she often falls asleep in the car. The head support keeps her head from being put in an awkward position. The memory foam seat is very plush and comfortable for her. The only downside was the time delivery took. We ordered in April and didn't receive the seat until late June.

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What we wanted!

 from Columbia, SC– Verified Buyer

I like how sturdy these seats feel and the side impact protection. We've been using ours for about one month and my son (11 months) seems to really like them - feels comfortable. My cons would be the assembly (but what car seat assembly isn't dreadful!). We couldn't get the LATCH as tight as we wanted it so set up appointment with car seat inspectors at DHHS (can also do with sheriff's dept or lots of other places, check out here: http://www.safercar.gov/cpsApp/cps/index.htm?). It took them 2 secs to get them installed correctly and incredibly tight. A forklift couldn't move those suckers! My other con would be that the cup holders are difficult to install and don't stay in really well. We don't use ours too much yet, but my son figured out how to pull the cup holder out and loves to play with it. It's great at entertaining him, but I can't figure out how to get it back in to STAY in so we can use for its intended purpose some day. Oh well! I would definitely recommend these seats to others. they were recommended to us by family and we would agree. Great seats with a great value!

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Solid and narrow.

 from Bellingham, WA– Verified Buyer

Good sturdy car seat. Bought it so could fit an adult in our backseat along with two car seats. It worked!
It could only fit in center seat because of how far it reclines in rear facing position.
Really heavy and a bit cumbersome to install.
Overall happy with it.

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12 month old LOVES it!

 from Saint Charles, MO– Verified Buyer

The only drawback is with out angle adjuster it leans very far forward. I guess I wish the cup holder was better. It falls out a lot. I don't even know where it is right now. Mt daughter loves being able to see out the side windows.

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 from Richmond, VA– Verified Buyer

Although it takes a little patience to get the configuration and installation correct, this seems like a totally solid piece of safety equipment. I hope to never have to test exactly how solid it is.

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Great car seat!

 from Edmond, OK– Verified Buyer

We've had this car seat for over a year now and I still love it! Since it's so tall, my 2 year old son can still sit rearfacing and be safer than forward facing!

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Best seat ever!

 from Mesa, AZ– Verified Buyer

This seat is made so well. This is a very heavy car seat because it is metal but well worh the lifting.

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Excellent car seat

 from Houston, TX– Verified Buyer

This is an excellent carseat. Very safe and comfortable, and works well on a plane.

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 from Center Valley, PA– Verified Buyer

I love our radian... it helps keep your child extended rear-facing as long as possible, which is safest, and you can continue using it when they outgrow the rear-facing mode. We actually have 4 total now (2 for each vehicle!) My daughter likes the color and the cup holder as well!

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 from Victor, ID– Verified Buyer

Safe, can use for all stages, comfortable, heavy duty. Love the color and fabric options. It took a few minutes to figure everything out during installation, but it's a breeze after the first time.

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1 out of 1 people found this review helpful
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