[ antrx.com ]

antrx technical discussion => general technical discussion => Topic started by: SR20ME on Jul 8, 2015, 04:16PM

Title: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: SR20ME on Jul 8, 2015, 04:16PM
Hi guys

I am just wondering if you can verify a few things regarding radiators for the U12. I'm needing a replacement radiator.

1) There is a difference between auto and manual radiators?      I can use an auto radiator if I have a manual. On some makes of cars you can't obviously whilst others it doesn't matter.
2)Do radiator sizes vary between engine sizes of the U12?       For example, the CA20 vs KA24?
3)Will an R31 radiator or U13 radiator fit a U12?       I see on ebay heaps of advertisements for U12 radiators that are included in advertising for U13 radiators also.

Any advice would be great as I need a good radiator ASAP.
Title: Re: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: SR20ME on Jul 9, 2015, 09:29PM
Anyone know or have any idea on this??? Thank you in advance.
Title: Re: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: Dragon on Jul 10, 2015, 12:28PM
Hey, all from memory but should be correct.

Auto radiator has an oil cooler on the bottom for a.t. fluid, manual doesn't have cooler.
So can use auto on manual.  Can't use manual on auto.

Ka24 and ca20 radiators are the same

No idea about r31 or u13... i think they would be different as the r31 is north south and the ka-de i think has a differnt water entry location for hoses. But unsure.

just looked at ebay and the u13 should fit.
 the r31 has the outlet on the opposite side.
Title: Re: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: SR20ME on Jul 11, 2015, 01:49PM
Hey, all from memory but should be correct.

Auto radiator has an oil cooler on the bottom for a.t. fluid, manual doesn't have cooler.
So can use auto on manual.  Can't use manual on auto.

Ka24 and ca20 radiators are the same

No idea about r31 or u13... i think they would be different as the r31 is north south and the ka-de i think has a differnt water entry location for hoses. But unsure.

just looked at ebay and the u13 should fit.
 the r31 has the outlet on the opposite side.

Thanks Dragon for your help. Really appreciate it. I'll pick up a U12 radiator from the wreckers and test it today.
Title: Re: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: pedro666 on Nov 11, 2015, 09:18PM
bots.. SR20ME , A GTIR  radiator will fit perfectly. You just spin the bottom 2 mounts around.
Title: Re: Radiator - Difference between auto and manual, engine size and R31, U12, U13
Post by: Nataliie on May 11, 2018, 03:51PM
Has a lot of knowledge has come to your site to tell all to understand more.