This is a new Yamaha air filter case lid intake duct for the following models. This boot is #17 in the 2nd picture
1987 WARRIOR (YFM350XT) - Air Filter
1988 WARRIOR (YFM350XU) - Air Filter
1989 WARRIOR (YFM350XW) - Air Filter
1990 WARRIOR (YFM350XA) - Air Filter
1991 WARRIOR (YFM350XB) - Air Filter
1991 WARRIOR (YFM350XB_M) - Air Filter
1992 WARRIOR (YFM350XD) - Air Filter
1992 WARRIOR (YFM350XD_M) - Air Filter
1993 WARRIOR (YFM350XE) - Air Filter
1993 WARRIOR (YFM350XE_M) - Air Filter
1994 WARRIOR (YFM350XF) - Intake
1994 WARRIOR (YFM350XF_M) - Intake
1995 YFM35FXG - Intake
1995 WARRIOR (YFM350XG) - Intake
1995 WARRIOR (YFM350XG_M) - Intake
1995 WOLVERINE (YFM35FXG_M) - Intake
1996 WARRIOR (YFM350XH) - Intake
1996 WARRIOR (YFM350XH_M) - Intake
1996 WOLVERINE 4WD (YFM350FXH) - Intake
1996 WOLVERINE 4WD (YFM350FXH_) - Intake
1997 WARRIOR (YFM350XJ) - Intake
1997 WARRIOR (YFM350XJ_M) - Intake
1997 WOLVERIINE (YFM35FXJ_M) - Intake
1997 WOLVERINE (YFM35FXJ) - Intake
1998 WARRIOR (YFM350XK) - Intake
1998 WARRIOR (YFM350XKC) - Intake
1998 WOLVERINE (YFM35FXK) - Intake
1999 BIG BEAR 4WD (YFM350FWXL) - Intake
1999 WARRIOR (YFM350XL) - Intake
1999 WARRIOR (YFM350XLC) - Intake
1999 WOLVERINE 4WD (YFM350FXL) - Intake
1999 WOLVERINE 4WD (YFM350FXLC) - Intake
2000 WARRIOR (YFM350XM) - Intake
2000 WARRIOR (YFM350XMC) - Intake
2000 WOLVERINE (YFM350FXM) - Intake
2000 WOLVERINE (YFM350FXMC) - Intake
2001 WARRIOR (YFM350XN) - Intake
2001 WARRIOR (YFM350XNC) - Intake
2001 WOLVERINE (YFM350FXN) - Intake
2002 WARRIOR (YFM350XP) - Intake
2002 WARRIOR (YFM350XPC) - Intake
2002 WOLVERINE (YFM350FXP) - Intake
2003 WARRIOR (YFM350XR) - Intake
2003 WARRIOR (YFM350XRC) - Intake