Hey guys I'm trying to find out what year/model rx-7 this coolant cap housing came off of. I know my 88 T2 does not have the nipple for the coolant overflow tank hose like this one does in the picture. I have a koyo radiator and it does not have a hook up for the coolant overflow like the stock one did. So I am trying to find out where this one came from. Thanks

 

its an 89-91 or s5

 

does anyone have the part number for it? cuy my local mazda dealer said they can't find that in the picture on their computer, and I have looked at the pic and it just shows the thermostat housing neck....any info would be great...thanks...

 

Must be aftermarket. I have a 89 and it doesn't have that.

Is it turbo only or somethin?

 

mines a 1990 t2 and i dont have one of them. this is slowly getting narrowed down....

 

I have an '87 base model and that is how mine is set up.

 

yeah, that's the rad filler neck/thermostat housing thing for S4 cars. 86-88

 

That's an early '86 overflow, with the overflow tank relocated to the standard S4 location. I'm considering doing the same to my car.

My former '88 had the overflow in the radiator, the normal S4 place.

 

anybody have an extra one they would like to sell me?

 

anyone?

 

It's a s4 filler neck, check out rotaryressurrection.com (spelling wrong perhaps?) and email/ask Kevin Landers, I'm sure he's got some laying around.

 

Damn, first double post ever. I hate this pace

 

i have a 88 and my friend has a 87 we both have them