oil dipstick for Mark 3....
 

Will the aftermarket oil dipstick fit Supra? I find a lot oil dipstick online but none of them only build for Supra so I want to know the oil dipstick for 7mge is Universal http://shop.oreillyauto.com/images/spaclear.gifor specific size?

its most likely specfic to that class of engines...you have to take into consideration the length and thickness...also the marking on the stick needs to accurately display oil level

Replacements from Toyota only list for around $15 MSRP... go buy one that's guaranteed to fit. If you need the pipe assembly too, that runs around $30, IIRC.