Are Car Seat Bases Universal or at Least Interchangeable?

 

NO, car seat bases are not universal; however…

… if you have an infant carrier that is from the same brand as the base, then you might be able to use it.

Look:

Every brand makes different types of car seats, so there’s no way to find a universal base. Also, it might even be dangerous trying to fit a different brand’s car seat.

The good news is that most infant carriers can be installed without a base.

You see, I’ve done the heavy lifting for you because I’ve gathered the most popular brand’s bases and made a list of compatible car seats for them. All you have to do is scroll down and find the info.

Plus, I’ve gathered the most important questions about car seats and bases so you can easily find the answers you’re looking for.

Let’s get to it!

 

Are Graco car seat bases universal?

No, Graco car seat bases are not universal; however, here’s a list of bases and compatible car seats.

  • SnugRide SnugLock Infant Car Seat Base – This base is compatible with all Click Connect Graco car seats
  • SnugRide SnugFit 35 Infant Car Seat Base – It’s compatible with all Click Connect Graco infant seats
  • SnugRide Infant Car Seat Base – Since it’s based on the Click Connect tech, all related infant seats will be compatible with it
  • SnugRide SnugLock Extend2Fit Infant Car Seat Base – This car seat base is also compatible with all Click Connect type Graco car seats

 

Are Chicco car seat bases universal?

No, Chicco car seat bases are not universal; however, here’s a list of bases and compatible car seats.

  • KeyFit Infant Car Seat Base – Is compatible with KeyFit, KeyFit 30, KeyFit 30 Zip and KeyFit 30 Zip Air
  • KeyFit 35 Infant Car Seat Base – It’s only compatible with Keyfit 35 Infant Car Seat
  • Fit2 Infant & Toddler Car Seat Base – It’s compatible with Fit 2 and Fit 2 Air

 

Are Britax car seat bases universal?

No, Britax car seat bases are not universal; however, here’s a list of bases and compatible car seats.

  • Britax Infant Car Seat Base – Is compatible with B-Safe 35, B-Safe Ultra, Endeavours and discontinued B-Safe Elite infant car seats
  • Britax Gen2 Infant Car Seat Base – Is compatible with all Britax infant seats

 

Are Safety 1st car seat bases universal?

No, Safety 1st car seat bases are not universal; however, here’s a list of bases and compatible car seats.

  • Safety 1st OnBoard 35 Series Adjustable Infant Car Seat Base – Is compatible with onBoard 35, onBoard 35+ and onBoard 35 air
  • Safety 1st OnBoard™ 35 LT Adjustable Infant Car Seat Base – Is compatible with the following Light ‘n Comfy Luxe and onBoard 35 LT

 

Are Evenflo car seat bases universal?

No, Evenflo car seat bases are not universal, however here’s a list of bases and compatible car seats.

  • Evenflo LiteMax Infant Car Seat Base – Is compatible with All LiteMax Infant Car Seats
  • Evenflo Nurture Infant Car Seat – Is compatible with Evenflo Nurture Infant Car Seat
  • Evenflo LiteMax DLX Infant Car Seat Base – Is compatible with Evenflo LiteMax Infant Car seats
  • Evenflo Embrace Infant Car Seat Base – Is compatible only with Evenflo Embrace Infant Car Seat

 

Are Baby Trend car seat bases universal?

No, Baby Trend car seat bases are not universal, however here’s a list of bases and compatible car seats.

  • Baby Trend Ally Infant Car Seat Base – Is compatible with Baby Trend Ally 35 Infant Car Seat Infant Car Seat
  • Baby Trend EZ Flec Loc 32 Infant Car Seat Base – Is compatible with the Baby Trend EZ Flex-Lock 32 Infant Car Seat
  • Baby Trend Secure 35 Infant Car Seat Base – Is compatible with Baby Trend Secure 35 and Secure 32 infant car seats, Flex Loc, and EZ Flex Loc infant car seats, and it’s NOT compatible with Ally 35

 

Are Maxi Cosi car seat bases universal?

No, Maxi Cosi car seat bases are not universal however here’s a list of bases and compatible car seats.

  • Maxi-Cosi Maxi Cosi Infant Car Seat Base – Is compatible with Maxi Cosi Mico Max Plus, Mico Max 30 and Mico 30 infant car seats
  • Maxi-Cosi Mico Infant Car Seat Base – Is compatible with Maxi Cosi Mica Max 30, Mica 30, Mica NXT and Mica AP car seats
  • Maxi-Cosi Mico Max 30 Infant Car Seat Base – Is compatible with Mico Max 30, Mico 30, Mico Nxt and Mico AP car seats

 

Are Cybex car seat bases universal?

No, Cybex car seat bases are not universal, however here’s a list of bases and compatible car seats.

  • Cybex Load Leg Base – Is compatible with the Cybex Asana only
  • CYBEX Base M – Is compatible with Cybex Aton M, Aton M i-Size and Sirona M2 i-Size car seats
  • CYBEX Base Z – Is compatible with Sirona Z + Cloud Z car seat

 

Are car seat bases interchangeable?

No car seat bases are not interchangeable, however if you happen to have a Graco car seat and you get a Graco base, then it’s more than likely to be compatible with it (I’m 100% sure of it if they are based on Click Connect).

 

Are infant car seat bases universal?

No infant car seat bases are not universals. Typically within brands, the base is universal and to be on the safe side, it’s always a good idea to download the manual.

 

Here are the most important questions about car seats and car seat bases:

Do all car seats fit the same base?

No not all car seats fit the same base. There are exceptions to this rule. Typically the car seat is interchangeable with the base within the same brand. For example with Britax, you can use the same base with all the infant seats that are Click Connect.

 

Can you buy car seat bases separately?

Yes of course you can buy car seat bases separately. Head over to amazon or any websites and type in the make and model and you can get a second base for your second car with ease.

 

Do all car seats fit all ISOfix bases?

Yes, all car seats that have an ISOfix will fit any car with an ISOfix. However, it’s a good idea to check the size of the seat so everyone is comfortable in the car.

 

Do you need to replace the car seat base?

Yes you will have to replace the car seat base eventually. All car seat bases have an expiration date which can be as short as 6-7 years or even up to 10 years. For more information about car seat base expiration you can read more over my full-length article.

 

Do any convertible car seats have bases?

No, convertible car seats don’t have a detachable base. Only infant car seats come with a detachable base.

 

Are all Britax bases compatible?

Yes, all Britax bases are compatible and use the Click Connect technology. So no matter which infant Britax seat you choose it will be compatible with the base.

 

How long do car seat bases last?

The bases will typically last 6-7 years depending on the brand. However there are a few that last for 10 years.

 

Can you get a universal ISOFIX base?

No, there’s no such thing as a universal ISOfix base. ISOfix is universal and the bases are not. If you pick a brand like Britax all Click Connect car seats can fit in either of their bases, while with other brands, you will need a different base for different models.

 

Is it worth getting an ISOFIX base?

Yes, it’s a good idea to get an ISOfix base because the installation is a lot easier and you will get it right and tight every time; thus the infant car seat will provide the best protection no matter what.

 

Do toddler car seats have detachable bases?

No, toddler car seats don’t have a detachable base. Only infant carriers come with a detachable base.

 

Do all car seats need a base?

Not necessarily. Most car seats can be installed without a base. Thus if you have multiple cars you don’t have to get another base or move it from car to car because you can install the infant car seat without it.

 

Can you use a Britax car seat without the base?

Yes you can use a Britax car seat without a base. However it’s a good idea to use it with a base because it provides more protection and peace of mind.

 

Does the Graco 4Ever have a base?

No the Graco 4Ever doesn’t have a detachable base.

 

How do I know if my car seat base is expired?

It’s quite easy to find out if the car seat base has expired or not. There’s either a white sticker that says the expiration date or it’s stamped in the plastic.

 

How long do ISOFIX bases last?

ISOfix bases last as long as non ISOfix ones because all bases come with an expiration date. Either way it’s better to go with an ISOfix base because it makes the installation perfect and safe every time.

 

Conclusions on why there aren’t any universal car seat bases

As you have seen it’s simply impossible to have a universal car seat base.

Every brand has its own shape and size, and it would be dangerous to try to mix and match other brands’ bases with a car seat. This is not the case with strollers however because thanks to some adapters you can interchange a different brand’s stroller with another infant carrier.

I hope you have enjoyed this article. Also I hope you have found the answer you’ve been looking for. Now if you want to help me out then please share this article.

 

Last Updated on January 24, 2022