I’m rebuilding my 99 Civic Si after a front end collision. It’s a B16a2, and I’m having a hard time finding a radiator with the right size inlet/outlet neck.

Please help!

 

Where are you looking ?

 

different places, I just don’t want to order the wrong one again

 

Koyo makes aftermarket radiators for your car. P/N A2274.

 

that one is for an Automatic transmission, which means it has transmission cooling lines. Mine is a manual, and I don’t need those cooling lines

 

Just cap them off. Pretty typical for aftermarket because it allows them to sell one rad and cover both configurations.

Are you trying to use a stock style radiator? There are a ton of options for 92-00 Civic "half rads".

Here's the Koyo stock sized one: More Information for KOYORAD A2274

 

I appreciate the info, I’m new to owning this car so there’s a lot I just don’t know about it.

 

You can even contact a dealer like BattleCraft. They can tell you which radiator is correct for your car, but they already have ones listed for EK Civic on their site.

 

Ahh dammit, wave off.

I was buzzing through that reply while I should have been paying better attention to other things and read that as 1.25", not 1.125". Sorry. B series hoses are 32mm (about 1.25").

 

The Koyo radiator the OP needs is part number HH080300. This has the 1.250" Inlet and Outlet needed for a DOHC engine and does NOT have fittings for an auto transmission cooler.

 

Thanks for fixing. That makes way more sense.

 

I got you bro.