![Radian® 3QXT next generation of all in-one-convertible car seat [Purple Plum]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/171/1851/3QXT_Plum__58302.1717691620.png?c=1 "Radian® 3QXT next generation of all in-one-convertible car seat [Purple Plum]")
Radian® 3QXT® SafePlus™
$549.99
4-stage newborn safety & 3-across: the advanced all-in-one convertible
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Radian® 3QXT Newborn Support
Replacement newborn support for the Radian® 3QXT all-in-one convertible car seat.
To place an order please contact our customer care team. See here for details.
Product Specs
Warranty Information
12 months
Plays well with
![[Black Jet]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/153/2375/1__38790.1622195860.png?c=1 "[Black Jet]")
Radian® 3QXT®, 3QX NA Infant Support Set Model Year 2020 to Present
$49.99
Give your Radian Q Series a refresh
![Replacement headrest cover for the Radian® all-in-one convertible car seat [Black Jet]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/152/778/1__47984.1670939961.png?c=1 "Replacement headrest cover for the Radian® all-in-one convertible car seat [Black Jet]")
Radian® 3QXT®, 3QX Head Rest Cover Model Year 2020 to Present
$29.99
Give your Radian Q Series headrest a refresh
![[Black Jet]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/155/2370/8__22508.1622195724.png?c=1 "[Black Jet]")
![New Diono Radian® 3QXT® FirstClass™ SafePlus™ All in One Luxury Convertible Car Seat, Suitable From Birth to Booster [Gray Slate]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/256/4526/53001-NA-01__77365.1717691990.png?c=1 "New Diono Radian® 3QXT® FirstClass™ SafePlus™ All in One Luxury Convertible Car Seat, Suitable From Birth to Booster [Gray Slate]")
Sale
Radian® 3QXT®+ FirstClass™ SafePlus™
$649.99
$649.99
$329.99
FirstClass™ Comfort & Ultimate 3-across Safeplus Engineering
![Replacement Pad Kit for the Radian all-in-one convertible car seat (2020 Radian 3QXT/QX) [Black Jet]](https://cdn11.bigcommerce.com/s-zoqnpughoc/images/stencil/350x350/products/151/752/1__99887.1611758698.png?c=1 "Replacement Pad Kit for the Radian all-in-one convertible car seat (2020 Radian 3QXT/QX) [Black Jet]")
Radian® 3R®, 3RX, 3RXT®, 3QX, 3QXT® Universal Premium Harness Pad Kit Model Year 2015 to Present
$29.99
Give your Radian Q Series a refresh