The PC545 will fit the following:
 
Motorcycles
Harley Davidson
1450 1450 FXD 1999 - 2003
1340 FXD Series 1997 - 1998
1200 XL Series 1997 - 2003 *
883 XL, XLH 1997 - 2003 *
 
Honda
1800 GL 1800 Gold Wing
2001 - 2003 **
1800 VTX1800C, VTX1800R Retro 2002 - 2003 **
 
Moto Guzzi
1100 Quota 1100 ES 1999 - 2002
1100 Sport 1100l 1997 - 1999
 
Polaris Victory
1507 ALL Models ALL
 
Yamaha
1600 XV 1600 Road Star 1999 - 2001 **
1300 XVZ13 Royal Star/Venture 1996 - 2000 **
 
Personal Watercraft
Honda
1235 AquaTrax F12, F12x 2002-2003 **
1235 AquaTrax R-12, R12x 2003-2004 **
 
Kawasaki
1500 JT1500-C STX-15F 2004 **
1200 JH1200-A, B Ultra 150 1999-2004 **
1200 JT1200-A-B, C, STX-R, STX-12F 2002-2004 **
1100 JH1100-B Ultra 150
2001-2004 **
1100 JH1100 Zxi 1996-2003 **
1100 JT1100 STX 1997-2003 **
900 JH900 Zxi 1995-1997 **
900 JT900 STS, STX 1997-2004 **
800 JS800 SX-R
2003-2004 **
750 JH750 ST 1996 **
750 JH750 Zxi 1995-1997 **
750 JS750 Sxi, Sxi Pro 1995-2002 **
750 JT750 STS, STX 1996-1998 **
550 JS550 1982-1985 **
440 JS440 1987-1992 **
440 JS440 1977-1986 **
 
ATV
Bombardier
650 DS650 2000 - 2003
400 Outlander 400XT, Max 2004
400 Outlander 400 2003
330 Outlander 300 2004
 
Honda
650 TRX650 FourTrax Rincon - OPT. Cold starting 2003 - 2004 **
 
Yamaha
660 YFM660FW Grizzly 2002 - 2003 **
600 YFM600FW Grizzly 1998 - 2001 **
450 YFM450FW Kodiak/Automatic 2003 **
400 YFK400FW Kodiak/Automatic 1996 - 2002 **
400 YFM400N Big Bear 2WD 2000 - 2003 **
400 YFM400FWN Big Bear 4WD 2000 - 2003 **
 
For other applications be sure to check the dimensions of your stock battery for fit.