It seems that Champion is the only manufacturer that makes a plug equivalant to a BF32. All the cross references suggest a 45 which is what I have now. Its too bad I can't find the right one. All the cross ref. sites give a plug 2 to 3 heat ranges for one number (NGK, Denso, Autolite, Bosch). I'm a little leary about using Champions as I have been toldthey are good for Lawnmowers and Volks Wagens and other air cold engines.