This listing is for a NEW OEM Ski Doo snowmobile projector nut. The part number on this part is 572078600.

Looked up the part number online and found that this will fit the following machines, will fit others too

Formula 500 Deluxe, 1997
Formula 500 Deluxe, 1997;
Formula 500 Deluxe, 1998
Formula 500 Deluxe, 1998;
Formula 500 LC, 2000
Formula 500 LC, 2000;
Formula 500, 1997
Formula 500, 1997;
Formula 500, 1998
Formula 500, 1998;
Formula 583 Deluxe, 1998
Formula 583 Deluxe, 1998;
Formula 583, 1997
Formula 583, 1997;
Formula Deluxe 380 F, 2001
Formula Deluxe 380 F, 2001;
Formula Deluxe 380/500, 1999
Formula Deluxe 380/500, 1999;
Formula Deluxe 380/500, 2000
Formula Deluxe 380/500, 2000;
Formula Deluxe 500 F, 2001
Formula Deluxe 500 F, 2001;
Formula Deluxe 500 LC, 2000
Formula Deluxe 500 LC, 2000;
Formula Deluxe 500 LC/583/670, 1999
Formula Deluxe 500 LC/583/670, 1999;
Formula III LT, 1996
Formula III LT, 1996;
Formula III LT, 1997
Formula III LT, 1997;
Formula III, 1996
Formula III, 1996;
Formula III, 1997
Formula III, 1997;
Formula S Electric, 1998
Formula S Electric, 1998;
Formula S, 1997
Formula S, 1997;
Formula S, 1998
Formula S, 1998;
Formula S, 1999
Formula S, 1999;
Formula S, 2000
Formula S, 2000;
Formula Sl, 1997
Formula Sl, 1997;
Formula Sl, 1998
Formula Sl, 1998;
Formula Sl, 1999
Formula Sl, 1999;
Formula STX LT(2), 1996
Formula STX LT(2), 1996;
Formula Z 500/583/670, 1999
Formula Z 500/583/670, 1999;
Formula Z 583, 1998
Formula Z 583, 1998;
Formula Z 670, 1998
Formula Z 670, 1998;
Formula Z, 1997
Formula Z, 1997;
Grand Touring 500/583, 1997
Grand Touring 500/583, 1997;
Grand Touring 500/583, 1998
Grand Touring 500/583, 1998;
Grand Touring 500/583, 1999
Grand Touring 500/583, 1999;
Grand Touring 580, 1996
Grand Touring 580, 1996;
Grand Touring 670SE, 1996
Grand Touring 670SE, 1996;
Grand Touring SE, 1997
Grand Touring SE, 1997;
Mach 1, 1997
Mach 1, 1997;
Mach Z LT (2), 1996
Mach Z LT (2), 1996;
Mach Z LT, 1997
Mach Z LT, 1997;
Mach Z, 1996
Mach Z, 1996;
Mach Z, 1997
Mach Z, 1997;
MX Z 380 F, 2001
MX Z 380 F, 2001;
MX Z 440 F, 1998
MX Z 440 F, 1998;
MX Z 440 F/500 F, 2001
MX Z 440 F/500 F, 2001;
MX Z 440 F/Z 583/Z 670 1997
MX Z 440 F/Z 583/Z 670 1997;
MX Z 440 LC, 1997
MX Z 440 LC, 1997;
MX Z 440, 1999
MX Z 440, 1999;
MX Z 440, 2000
MX Z 440, 2000;
MX Z 500/583/670, 1998
MX Z 500/583/670, 1998;
MX Z 500/670 HO, 1999
MX Z 500/670 HO, 1999

Any other questions about this item, feel free to email me.