---
product_id: 290475412
title: "Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black"
brand: "diono"
price: "$1831"
currency: NZD
in_stock: false
reviews_count: 5
category: "Diono"
url: https://www.desertcart.nz/products/290475412-diono-radian-3r-3-in-1-convertible-car-seat-rear
store_origin: NZ
region: New Zealand
---

# Rear-facing up to 50 lbs (~4 years) Steel-reinforced safety frame FAA-approved for air travel Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black

**Brand:** diono
**Price:** $1831
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Safety that grows with your family — sleek, strong, and travel-ready!

## Quick Answers

- **What is this?** Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black by diono
- **How much does it cost?** $1831 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/290475412-diono-radian-3r-3-in-1-convertible-car-seat-rear)

## Best For

- diono enthusiasts

## Why This Product

- Trusted diono brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-in-One 10-Year Use:** From newborn to high-back booster (5 to 120 lbs), this seat grows with your child, delivering a decade of trusted protection.
- • **Reinforced Steel Frame:** Built with automotive-grade alloy steel for unmatched durability and crash protection, engineered to shield your most precious cargo.
- • **Slim Fit 3-Across Design:** Fits three car seats side-by-side in most vehicles without compromising comfort or safety—perfect for growing families.
- • **Travel-Ready & Convenient:** FAA-approved for flights, foldable for easy transport, and machine-washable covers keep your lifestyle hassle-free and stylish.
- • **Extended Rear-Facing Safety:** Keep your child rear-facing longer for maximum protection up to 50 lbs, supporting safer journeys through toddlerhood.

## Overview

The Diono Radian 3R is a premium 3-in-1 convertible car seat engineered with a steel-reinforced frame, designed to keep children rear-facing longer (up to 50 lbs) and transition safely through booster mode (up to 120 lbs). Its slim profile fits three seats across most vehicles, making it ideal for families with multiple kids. FAA-approved for air travel and equipped with machine-washable covers, it offers a decade of versatile, high-performance child safety.

## Description

The Diono Radian® 3R is the original slimfit 3 across all-in-one convertible car seat, designed to protect from baby to booster seat (5 - 120 pounds). Lovingly engineered with the famous Diono steel reinforced frame and now rear facing for even longer, expect 10 years of safety from just one car seat. Designed and engineered with complete rear facing protection, so you can keep them in a safe rear facing convertible car seat for longer up to 50 pounds. Built with a mechanically engineered, reinforced steel frame, made from automotive grade high strength steel, the radian is always ready to shield and protect. And when your family grows, the slimfit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. As travel car seat experts, Diono have naturally built in super portable and convenient features to the Radian 3R with original fold for easy transport and storage and easy remove machine washable covers. The radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

Review: Excelente tamaño y seguridad - La mejor silla si tienes una familia de 3 niños caben perfectamente 3 sillas en la parte trasera del coche
Review: Buen asiento - Ocupas ser un Ingeniero Aeronautico o automotriz para Instalarlo. Es demasiado Dificil su instalación. Pero brinda buena protección al BB

## Features

- REAR-FACING FOR LONGER: This slimfit convertible car seat is designed and engineered to keep your child rear facing even longer up to 50 lb/ 22. 7 kg, approx. 4 years old
- HIGH BACK BOOSTER: Keep your child safe and comfortable with the high back booster seat mode now up to 120 lb, 54 kg. The high back booster adds an extra layer of protection and comfort for any child transitioning into booster mode.Shell and Components: Spot clean

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083F5P7VP |
| Age Range Description | Newborn |
| Best Sellers Rank | #21,376 in Baby Products ( See Top 100 in Baby Products ) #25 in Convertible Child Safety Car Seats |
| Brand | diono |
| Color | Black Jet |
| Colour | Black Jet |
| Customer Reviews | 4.6 out of 5 stars 7,739 Reviews |
| Forward Facing Car Seat Minimum Height | 29.9 Inches |
| Forward Facing Maximum Weight | 120 Pounds |
| Forward Facing Minimum Weight | 22 Pounds |
| Global Trade Identification Number | 00677726506200 |
| Harness Type | 5-Point |
| Included Components | radian® 3R car seat, detachable rear-facing base, foam harness pads, lap belt cushion, Safe Stop®energy absorbing harness, rear-facing top tether, Instruction manual |
| Infant Toddler Car Seat Type | Convertible Car Seat |
| Installation Type | Latch |
| Installation type | Latch |
| Item Dimensions D x W x H | 40.9D x 42.9W x 72.1H centimeters |
| Item Type Name | All-in-One |
| Item Weight | 10.44 kg |
| Manufacturer | Diono |
| Material | Alloy Steel Plastic Polypropylene Polystyrene |
| Material Type | Alloy Steel Plastic Polypropylene Polystyrene |
| Maximum Height Recommended | 57 Inches |
| Maximum Weight Recommendation | 54.43 kg |
| Minimum Height Recommendation | 18.1 Inches |
| Minimum Weight Recommendation | 2.27 kg |
| Number of Height Positions | 1 |
| Orientation | Forward Facing, Rearward Facing |
| Product dimensions | 40.9D x 42.9W x 72.1H centimeters |
| Rear Facing Car Seat Maximum Height | 44.1 Inches |
| Rear Facing Maximum Weight | 50 Pounds |
| Rear Facing Minimum Weight | 5 Pounds |
| UPC | 677726506200 |
| Unit Count | 1 Piece |

## Product Details

- **Brand:** diono
- **Colour:** Black Jet
- **Installation type:** Latch
- **Material:** Alloy Steel Plastic Polypropylene Polystyrene
- **Orientation:** Forward Facing, Rearward Facing

## Images

![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 1](https://m.media-amazon.com/images/I/61HgBtCalGL.jpg)
![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 2](https://m.media-amazon.com/images/I/61Qj1rdyy5L.jpg)
![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 3](https://m.media-amazon.com/images/I/61w20+2gHzL.jpg)
![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 4](https://m.media-amazon.com/images/I/710qEj7-PIL.jpg)
![Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black - Image 5](https://m.media-amazon.com/images/I/71Qa4C6Y7UL.jpg)

## Questions & Answers

**Q: Can the Radian be rear-facing and still give a tall driver (6 ft) enough room? Or will it fit in the middle without hitting the driver's seat? Mazda3.**
A: Place it behind the passenger side, if you’re shorter.  It you’re 6’ tall, it will be too crowded.  You may try it in the middle, but it may still affect the front passengers.

**Q: How deep does the vehicle seat have to be for rear facing and for forward facing?**
A: This seat is hard to install properly while rear facing because of its height. The angle of the seat has a lot to do with it. We have a rav4 and a Prius the Prius actually fit better because of the streeper seating angle. They sell a foam angle adjuster that does pretty well in the rav4, but if I was much taller (I'm 5'9") it'd be a tight squeeze up front (the car seat is not supposed to touch the seat in front of it.) These are very well made though and much higher quality than many other seats in the same price range. Plus you can fit 3 across in every vehicle. I'd recommend to anyone.

**Q: Fecha de vencimiento?**
A: We ship using UPS ground and normally the item goes out either same day or next day.

**Q: How do I secure on in the middle seat in the back (3 seats across ans forward facing) if I don’t have latch in the middle seat?**
A: If you are unable to attach the seat with the latch system you can secure it with the vehicles seatbelt.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excelente tamaño y seguridad
*by E***I on 25 September 2025*

La mejor silla si tienes una familia de 3 niños caben perfectamente 3 sillas en la parte trasera del coche

### ⭐⭐⭐⭐ Buen asiento
*by L***T on 28 July 2024*

Ocupas ser un Ingeniero Aeronautico o automotriz para Instalarlo. Es demasiado Dificil su instalación. Pero brinda buena protección al BB

### ⭐⭐⭐⭐⭐ Fits 2 in a row with additional infant seat in Toyota Camry!
*by E***R on 12 February 2025*

We bought 2 of these to fit in the backseat of our 2010 Toyota Camry. 1 rear facing, middle forward facing, next to infant (Uppababy Mesa) seat. Middle forward facing was the only way it would fit. Pro’s: slim, sturdy, easy for our kids to get into themselves, latch system is easy/works well. Good customer service from Diono. Our first one didn’t have the rear-facing piece in the box. Cons: * Very heavy! * Tall backside. Check your car seat manual whether a car seat is allowed to touch/rest against the front seat (if rear facing). Now having moved one to the middle back seat (forward facing) on our Honda Odyssey, it sits higher and blocks the rearview a bit. Wasn’t an issue in the Camry. No cupholders- fine, since that wouldn’t fit anyway. Not as much padding, so perhaps less comfortable, but both our kids are fine in them. Overal conclusion: great car seat if you have a tight back seat!

## Frequently Bought Together

- Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black
- Diono XL Car Seat Cup Holders for Radian and Everett Car Seats, Pack of 2 Cup Holders, Black
- Diono Ultra Mat Complete Back Seat Upholstery Protection from Child Car Seats and Pets, Crash Tested, Premium Ultra Thick Padding, Durable, Water Resistant, Anti-Slip, 3 Mesh Storage Pockets

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/290475412-diono-radian-3r-3-in-1-convertible-car-seat-rear](https://www.desertcart.nz/products/290475412-diono-radian-3r-3-in-1-convertible-car-seat-rear)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-16*