simple yes or no question. i need a alternator...ebay has some cheap ones, but they don't mention being for turbo just 86-92. Are the na/t2 alternators same and interchangable?

thanks
~B

 

S4 & S5 got different plug, and the S5 has higher output
but they are interchangable

 

Nothing on an RX-7 is a simple yes or no question .

 

so 86-88 n/a & turbo are the same?

thx

 

well my car before my swap had a s4 n/a alternator, but when i did my swap, the plugs didnt line up. lucky for me the kid i bought the 7 from left me one in the back seat.

 

All S4's are the same all S5 are the same...s4 is 70A S5 is 80A

 

If S4 na and TII are the same, why does Mazdaformance list two different ones?

http://www.mazdaformance.com/Merchan...egory_Code=492

 

Because they enjoy confusing you?

 

Bunch of people don't know in this thread answering (shakes head).

There are 4 different alternators for the FC, Turbo and Non Turbo S4 and Turbo and Non Turbo S5.

The S4 models are basicly interchangeable, but the T2 alt case is slightly smaller. But much like the S5 alts, it will however bolt in just fine.

The S5 models are 10 amps more peak output (80 amps peak, vs 70 amps peak for the S4 versions) however the plugs are entirlly different than the S4 or even the Turbo and Non Turbo versions. They can be used in the S4 models, but you will need to locate a plug, or custom build your own adapter out of electrical slide connector hardware.

BTW: the FD alt uses the same plug as the 89-91 non turbo, but again the FD alt is considerably bigger and has a different pully.