WONDERFOLD Infant Car Seat Adapter for Britax Car Seat - Full 360-Degree Rotation, Easy to Install & Folds with Wagon Stroller (W4 Series, Not Compatible with L & Pro)
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FREE 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.
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Availability:
In Stock.
Arrives
Sunday, Jul 26
Recently Viewed
Model: W4
Size: Britax
Features
- W4 EXCLUSIVE: Bench seat removable and fits two car seats. Not Compatible with L and Pro Series WonderFold models
- BRITAX EXCLUSIVE: Designed to attach Britax car seat models to Wonderfold stroller wagon
- 360o ROTATION: Baby car seat adapter rotates full 360o in 90o steps, offering four direction options
- PLENTY OF ROOM: Car seat adapter attaches on opposite side of handlebars, leaving plenty of space for more riders
- EASY TO INSTALL: Adapter installs quickly and easily, with safety strap for added stability, and folds down with the collapsible wagon
Product Dimensions: 24.5 x 5.3 x 10.4 inches
Item model number: W4
Material Type: Polyester
Number Of Items: 1
Batteries required: No
Item Weight: 10.56 pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 26
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Model: W4
Size: Graco
We have the W4 Elite and the W4 attachment fits perfect! And is compatible with our Graco Snugride Snugfit LX infant carseat that came with our Graco Modes nest2grow travel system. Not sure why someone else reviewed that the W4 piece it isn’t compatible with the elite because it 100% is. Great addition, was an easy install but have a screwdriver handy to initially put everything together and then once it’s all put together the base itself that rotates can easily be removed and put back on.
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Reviewed in the United States on December 17, 2025 by Carter S
Model: W4
Size: Graco
Work great for my grandbabies
Reviewed in the United States on October 14, 2025 by Roy D Graham
Model: W2
Size: Cybex | Nuna | Maxi-Cosi
Fit perfectly for the nuna! So excited to take this out on trips!
Reviewed in the United States on November 2, 2025 by Hayli
Model: W4
Size: Chicco
Was kind of useless the carseat fits in it as long as your not on a rough terrain i don't see the point in using it and its kind of a pain to take on and off when not using also makes putting the wagon in the trunk impossible I have an infinity Q60 for reference and I don't typically use my 3rd row so its just trunk space
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Reviewed in the United States on October 20, 2025 by Amber
This adapter not only was super easy to attach but it still allows for room under the car seat to place items. We typically only have one child on the seats next to it but there is still enough room for two kids in the front seats. Bought this adapter instead of doing a double stroller because our kids have always outgrown everything so quickly so this is just a temporary thing until he can sit up and ride inside the wagon. We bought this to fit our Maxi Cosi car seat. I believe they have just released more models for different car seats. Well worth it for our family!
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Reviewed in the United States on September 10, 2024 by Garrahan Family
Model: W2
Size: Cybex | Nuna | Maxi-Cosi
Love our attachment for our wagon. Adds a little bit of weight but it’s great besides that. We’ve really enjoyed it more than a double stroller and I feel like it’s good quality for the amount of money you spend on it.
Reviewed in the United States on September 5, 2025 by Sophie Kennedy
Model: W4
Size: Britax
Perfect add on to the wagon.
Reviewed in the United States on November 1, 2025 by Natalie Russano
My almost-3 year old doesn’t have much room, even with the car seat facing the side, but it’s still so worth it! Much more convenient than a double stroller
Reviewed in the United States on October 9, 2024 by Theresa Humphrey Theresa Humphrey