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SKU #: BRX1247

Britax B-Ready Stroller Lower Infant Car Seat Adapter


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List Price: $79.99

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Arrives for Christmas to Ashburn, VA 02108 (Change)


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  • Car seat adapter
  • Allows you to attach an infant car seat in the lower position
  • Allows you to use two infant car seats with the B-Ready stroller
  • Adds click and go system to lower position of stroller
  • Stroller can be folded without removing adapter
  • Simple adapter keeps the family moving together
  • Great for one or perfect for twins
  • For use with the Britax Chaperone infant car seat
  • Easy installation and removal
  • 1 Year manufacturer's warranty
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  • Overall Height - Top to Bottom: 22 Inches
  • Overall Width - Side to Side: 18 Inches
  • Overall Depth - Front to Back: 8 Inches
  • Overall Product Weight: 2.6 Pounds

Weights & Dimensions

  • Overall Height - Top to Bottom: 22 Inches
  • Overall Width - Side to Side: 18 Inches
  • Overall Depth - Front to Back: 8 Inches
  • Overall Product Weight: 2.6 Pounds


Product Type: Car seat adapterColor: Black
Material: MetalNumber of Items Included: 1
Life Stage: BabyGender: Unisex
Country of Manufacture: China 
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When you buy a Britax B-Ready Stroller Lower Infant Car Seat Adapter 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 Britax Part #: S842400 here. If you have any questions about your purchase or any other Stroller Accessories product for sale our customer service representatives are available to help.Whether you just want to buy a Britax B-Ready Stroller Lower Infant Car Seat Adapter or shop for your entire home, Wayfair has a zillion things home.

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Customer Reviews

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Average Overall Rating:
(based on 19 reviews)

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B-ready lower arm for Britax stroller

 from Rowland Heights, CA– Verified Buyer

I got this for my sons Graco carseat. Needed this along with the Universal carseat adapter. This frame is very strong. In fact, I made a wooden plank and places it on top as a standing board for my daughter and it held her weight with no issues.

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Just as Expected!

 from Rochester, MI– Verified Buyer

Going to be a perfect solution for our second child. Plus it was a great deal on Wayfair and arrived very quickly!

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Everything is good

 from Illinois– Verified Buyer

Everything is good with the adapter and it is what we expected from the description. I have no complaints.

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Very convenient to have

 from lynnwood, WA– Verified Buyer

Snaps into the britax be ready stroller and converts the stroller into a double stroller. Car seat snaps right into it.

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Looks Like It Will Work Fine.

 from Delaware

This stroller car seat adapter seems to be of good quality and looks like it will work out fine for us.

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Not that useful

 from Fairfax, VA– Verified Buyer

The price and this not being included with the b-ready seems like a price gouging effort by Britax. Why get the b-ready when you could get the b-agile The answer is so you can add a second seat which requires you spend $60 for this attachment then extra for the infant car seat or the 2nd lower seat. I'd forgo the 2nd lower seat in the future seeing as our nephew prefers to be heldwalked, and the stroller is more just to hold our junk.

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Very useful

 from Burlington Vermont

Very Useful for the second kid, only problem is that it makes it the stroller a little hard to close. Not a big problem though, you can still close it to the first notch on the locking tab.

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Great product!

 from Texas

This is an excellent product! Soo easy to install and most importantly UNinstall! Makes my britax stroller a 2 baby stroller w ease!

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Best price. Fast delivery. Awesorne.

 from Nashville, TN– Verified Buyer

This product is essential for a family with 2 little ones. We bought this for our daughter who has 2 little ones 15 months apart and it works perfectly for the baby and the toddler.

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Easy Adapter To Use

 from Pittsburgh, PA– Verified Buyer

Easy adapter to use. You cannot beat the features on this car seat. The Chaperone Infant child seat connects easily with this adapter.

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