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UPPAbaby Extra Aria Car Seat Base/Compatible with Aria Infant Car Seats/SmartSecure Installation with Load Leg

  • Based on 113 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Jun 24
Order within 18 hours and 23 minutes
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Features

  • ONLY COMPATIBLE WITH: Fits UPPAbaby Aria or Mesa Max Infant Car Seats. Not compatible with Mesa and Mesa V2 models. Infant carrier not included.
  • EXTRA BASE: An extra infant car seat base allows you flexibility and ease of travel. Ideal for multiple family vehicles no more swapping car seat bases between relatives, babysitters, or spouses!
  • INSTALL IN SECONDS: We make installation quick and simple for you by combining our SmartSecure system, auto-retracting LATCH design, bubble level indicators, red to green visual indicators, plus four-position adjustable foot.
  • INCLUDED LOAD LEG: The adjustable load leg adds stability and increases overall safety through limiting forward rotation during a front collision to reduce the chance of a head or neck injury.
  • ANTI-REBOUND+ PANEL: The anti-rebound+ panel provides increased safety and protection by limiting the rotation and movement of the car seat in the event of a rear-impact collision.
  • SEAT BELT INSTALLATION: Built-in lock-off for secure seat belt installation.
  • FINISHED BOTTOM: The smooth, finished base bottom wont damage car interiors.
  • COMPLIMENTARY CONSULATIONS: Schedule a one-on-one virtual consultation with a Certified Technician from the UPPAbaby website for product support, car seat checks, or service appointments.

Description

The Aria Infant Car Seat is poised to establish a groundbreaking benchmark for lightweight infant car seats. With its featherweight design at under 6 lbs., the Aria is certain to define new standards in the realm of easy-to-carry baby gear.

Maximum Weight Recommendation: 30 Pounds


Installation Type: Latch


Orientation: Rear Facing


Number of Height Positions: 4


Brand: UPPAbaby


Age Range Description: Infant


Infant Toddler Car Seat Type: Infant Car Seat


UPC: 810129599053


Global Trade Identification Number: 53


Manufacturer: UPPAbaby


Unit Count: 1.0 Count


Item Dimensions D x W x H: 23.9"D x 14"W x 15.2"H


Item Weight: 12.6 Pounds


Material Type: Plastic


Color: Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 24

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • A must have
If you have more than one vehicle, it is super convenient to have an extra base. I like the added safety feature of the arm. Installation was easy and the fit is always sturdy with uppababy. I can’t have a car seat that isnt easy to install or my husband would give up.
Reviewed in the United States on December 11, 2024 by jessecross

  • Great quality
Very easy to install. This is heavy so it’s a nice piece of mind. The corresponding car seat clips right in and is perfect. The leg style design was nice because it felt like it was counteracting the weight of the car seat. These are a little pricey, but worth it.
Reviewed in the United States on May 23, 2025 by Tori Trexler

  • The "Two-Car Sanity Saver": My Take on the UPPAbaby Extra Aria Base
If you are a two-car family, you already know that the "base swap" is a recipe for frustration. Constant unbuckling and re-leveling from one vehicle to another is the last thing you want to deal with when you're just trying to get out the door. Adding an UPPAbaby Extra Aria Car Seat Base to the second car is easily the best investment you can make for your daily sanity. It allows you to simply click the carrier into whichever car is headed out, without the hardware headache. The SmartSecure system is the standout feature here. It uses a red-to-green visual indicator that takes the guesswork out of installation, which is a massive relief when you want to be 100% sure everything is locked in correctly. The integrated load leg is also a great safety addition, as it helps stabilize the seat and reduces rotation during an impact. However, there is a practical reality to watch out for if you have a premium interior. This base is built to be rock-solid, but that means it puts a lot of pressure on the seat cushion. If you have leather or pleather seats, you absolutely need to put a high-quality protective pad underneath it. Without a barrier, the weight and the tight installation will leave a serious, permanent dent in your upholstery. It’s a small extra step, but necessary to protect your car's interior. ... show more
Reviewed in the United States on March 25, 2026 by GadgetGuy

  • Great base
Works great!!
Reviewed in the United States on February 17, 2026 by Mildred Barrow

  • 2nd base is a definite must to make life easier
This base is exactly what they needed to make life a lot easier. My Son and Daughter-in-law do not have to worry about moving the car seat around between cars. They both have a base and are ready to go with whatever car they chose to use.
Reviewed in the United States on January 15, 2026 by Carolyn

  • Our second base
Easy install - we got another because we needed one for a second vehicle. I like that it has the leveler and the easy to tell "red" and "green" to show if the seat is installed securely
Reviewed in the United States on April 7, 2025 by Rei

  • Secure base, safe baby
Feels very secure, thanks in part to the extendable leg for support. We’ve had another type of car seat base and this one feels waaay more secure, very little wiggle. I feel comforted knowing my baby is safe!
Reviewed in the United States on December 24, 2025 by Paige

  • Lightweight and Easy to use
Love how easy it is to put into your car and take out. Super light and folds up easy as well.
Reviewed in the United States on June 3, 2025 by Emily

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