I'm looking for the PART NUMBER of the coolant drain plug that is located on the engine block next to the dump pipe and turbo. The car is a 98 R34 GTT with an RB25DET. The thread is a 14mm with a 1.25 head. Yes I've tried Repco, Supercheap, and Autobarn, none of them have the exact one. Any reply will be appreciated thanks :)