Search  for anything...

Safety 1st onBoard 35 LT Adjustable Infant Car Seat Base

  • Based on 7,929 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $9 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

90-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jan 24
Order within 13 hours and 45 minutes
Available payment plans shown during checkout

Color: Base - Black


Style: Extra Base


Features

  • For use with the Safety 1st onBoard35 LT infant car seat
  • Adjustable base
  • LATCH equipped
  • Stay-in-car base prevents spending time transferring base from car to car

Description

Everyone loves a little extra time. Installing an extra base in your second car makes it easier when traveling with baby. Choose your car, click in your existing Safety 1st onBoard™35 LT car seat into the onBoard 35 LT Adjustable Infant Car Seat Base, and you'll be able to get on the road right away. The base is LATCH equipped and has two position recline to help with an easier installation.This extra base is compatible with the Safety 1st onBoard™35 LT, an infant car seat that provides your baby with a superior fit. The seat (not included) is also designed to be easier for parents to use. It’s a light infant car seat that can accommodate a baby up to 35 pounds, making it much easier to carry. The harness adjusts easily from the front of the seat with a simple pull for a secure fit for your child, and the base height adjusts for the right fit to your car.

Brand: Safety 1st


Installation Type: Latch


Material: Plastic


Color: Base - Black


Orientation: Rear Facing


Product Dimensions: ‎23.7 x 8.5 x 16 inches


Item model number: ‎IC289BLK


Is Discontinued By Manufacturer: ‎No


Maximum weight recommendation: ‎35 Pounds


Material Type: ‎Plastic


Number Of Items: ‎1


Style: ‎Extra Base


Batteries required: ‎No


Orientation: ‎Rear Facing


Harness type: ‎3-Point


Item Weight: ‎5.39 pounds


Country/Region of origin: ‎USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 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


  • Mixed review
Color: Monument 4 Style: Original
Super easy to install car seat with a base especially since it’s compatible with my safety first wagon it’s a great style and color but once I install the base through the seatbelt loop the back of it still moves up and down I googled online and it said it supposed to do that in case of a car crash the car seat will cocoon with the baby, but I still have unsettled emotions about it. Not sure if I’m happy with the purchase or not. ... show more
Reviewed in the United States on November 21, 2024 by Jovana

  • Fantastic product
Color: Base - Black Style: Extra Base
Love the car seat that goes with this base. We bought a second base so we didn't have to shuffle it between cars. Really great quality and I feel safe with my baby using this.
Reviewed in the United States on November 4, 2024 by Cory

  • Perfect solution for two car owners
Color: Base - Black Style: Extra Base
I like the fact that it makes life simple for those of us that hate taking the base in and out one car to place in another car. It is well made. We have the Mickey Mouse Grow and Go modular and this works well with the car seat. Easy to clean and move if necessary.
Reviewed in the United States on August 27, 2024 by SC

  • We LOVE this car seat!!
Durable, great head support and we love that is reclines, super comfortable,great price, easy to install, decent size for smaller vehicles.
Reviewed in the United States on June 2, 2024 by Mate'a Runge

  • Loved it so much that I got a second one
Color: Monument 4 Style: Original
I bought one of these for my niece 4 years ago and it's held up great! Decided to get another one for my nephew. It's not too heavy and provides good support for the child. The product is of good quality.
Reviewed in the United States on August 25, 2024 by Luis B

  • Out of box review
Second Time Mom! & so far so good. Was honestly hesitant because of some of the reviews but something about this car seat kept me coming back. My second is not due until August so I can’t give a full review just yet but I definitely wanted to share the out of box experience for the mothers who are also hesitant.. My first look out of the box was directly to the cushion. I didn’t want anything to thin but also something not squeezing the baby. The cushion is enough for me! It held in all the right place & comes with a detachable head peice to grow with baby. The weight (even with the base) was pretty light. I mean it’s no shopping bag/cart at target lol but it’s pretty light so far. The sun barrier thingy is awesome. The length is great & its easy to pull down with little to no sound. (Sound doesn’t bother me, I mean come on look at the price 🤷🏽♀️) However, the bar/handle needs a bit of work. I only say this because out of the box I needed to give it a little tug. It wasn’t so smooth to move but after trying it out and playing with it, it loosened up & its better now. I also looked at reviews for the car seat & stroller together. The reviews were of course half & half mostly but I gave it a chance & so far I don’t regret it. I only gave 4 stores because baby is not here yet but I would definitely recommend to other moms. It meets all of my expectations & at a far price. PS the price is mainly why I kept coming back. 2nd time mom, & remembering how fast babies grow & how they honestly don’t care how much you spend on a car seat! As long as they are safe, is all that matters. So honestly, take the chance you may just love it like myself. IF NOT, Free returns (: ... show more
Reviewed in the United States on March 20, 2019 by Elizabeth Shelton

  • Perfect!
Color: Base - Black Style: Extra Base
I ordered an extra car seat base to put in my husband’s car so we didn’t have to worry about which car we wanted to take. This car seat base is compatible with the Monbebe Dash Travel System Stroller and Infant Car seat from Walmart! I am very happy with this purchase. It came on time and is very sturdy. 100% recommend! ... show more
Reviewed in the United States on May 6, 2024 by Morgan Jones

  • Perfect fit
Color: Base - Black Style: Extra Base
Purchased this extra car seat base for my car. Lightweight, ease to install. The Strap makes it quick to adjust.
Reviewed in the United States on August 11, 2024 by Heidi Andrade

Can't find a product?

Find it on Amazon first, then paste the link below.