Here's a sample search for a crossover of my rear master cylinder, no longer available:
the Honda Cross refference program shows it fits the following models
Part # = 45530-MA4-671
Part Description = MASTER CYLINDER SET - (replaces 45530-MZ0-760)
Model Count = 211
CB1000-R 1994 1000 CB1000 Street
CB1000-S 1995 1000 CB1000 Street
CB125TT-L 1990 125 CB125TT Street
CB400T-B 1981 400 Hawk 400 Street
CB450SC-C 1982 450 Nighthawk 450 Street
CB450SC-D 1983 450 Nighthawk 450 Street
CB450SC-F 1985 450 Nighthawk 450 Street
CB450SC-G 1986 450 Nighthawk 450 Street
CB450T-C 1982 450 Hawk 450 Street
CB550SC-D 1983 550 Nighthawk 550 Street
CB650-B 1981 650 CB650 Street
CB650-C 1982 650 CB650 Street
CB750K-B 1981 750 750 Four Street
CB750K-C 1982 750 750 Four Street
CB900F-2 2002 900 919 Street
CB900F-3 2003 900 919 Street
CB900F-4 2004 900 919 Street
CB900F-5 2005 900 919 Street
CB900F-6 2006 900 919 Street
CB900F-7 2007 900 919 Street
CBR1000F-L 1990 1000 1000 Hurricane Street
CBR1000F-M 1991 1000 1000 Hurricane Street
CBR600F-H 1987 600 600 Huricane Street
CBR600F-J 1988 600 600 Huricane Street
CBR600F-K 1989 600 600 Huricane Street
CBR600F-L 1990 600 600 Huricane Street
CM400A-B 1981 400 Hondamatic 400 Street
CM400C-B 1981 400 CM400C Custom Street
CM400T-B 1981 400 CM400T Touring Street
CM450A-C 1982 450 Hondamatic 450 Street
CM450A-D 1983 450 Hondamatic 450 Street
CM450C-C 1982 450 CM450C Custom Street
CN250-1 2001 250 CN250 Helix Scooter
CN250-4 2004 250 CN250 Helix Scooter
CN250-5 2005 250 CN250 Helix Scooter
CN250-6 2006 250 CN250 Helix Scooter
CN250-7 2007 250 CN250 Helix Scooter
CN250-G 1986 250 CN250 Helix Scooter
CN250-H 1987 250 CN250 Helix Scooter
CN250-N 1992 250 CN250 Helix Scooter
CN250-P 1993 250 CN250 Helix Scooter
CN250-R 1994 250 CN250 Helix Scooter
CN250-S 1995 250 CN250 Helix Scooter
CN250-T 1996 250 CN250 Helix Scooter
CN250-V 1997 250 CN250 Helix Scooter
CN250-W 1998 250 CN250 Helix Scooter
CN250-X 1999 250 CN250 Helix Scooter
CN250-Y 2000 250 CN250 Helix Scooter
CX500C-B 1981 500 CX500C Custom Street
CX500C-C 1982 500 CX500C Custom Street
CX500D-B 1981 500 CX500D Deluxe Street
CX650C-D 1983 650 CX650C Custom Street
FT500-C 1982 500 FT500 Ascot Street
FT500-D 1983 500 FT500 Ascot Street
GL1100A-D 1983 1100 GL1100A Goldwing Aspencade Touring
GL1100-D 1983 1100 GL1100 Goldwing Standard Street
GL1100I-D 1983 1100 GL1100I Goldwing Interstate Touring
GL1200-E 1984 1200 GL1200 Goldwing Standard Street
GL1500C-3 2003 1500 Valkyrie Street
GL1500CD-1 2001 1500 Valkyrie Deluxe Street
GL1500CD-2 2002 1500 Valkyrie Deluxe Street
GL1500CD-3 2003 1500 Valkyrie Deluxe Street
GL1500CF-1 2001 1500 Valkyrie Interstate Touring
GL1500CF-X 1999 1500 Valkyrie Interstate Touring
GL1500CF-Y 2000 1500 Valkyrie Interstate Touring
GL1500CT-V 1997 1500 Valkyrie Tourer Touring
GL1500CT-W 1998 1500 Valkyrie Tourer Touring
GL1500CT-X 1999 1500 Valkyrie Tourer Touring
GL1500CT-Y 2000 1500 Valkyrie Tourer Touring
GL1500C-V 1997 1500 Valkyrie Street
GL1500C-W 1998 1500 Valkyrie Street
GL1500C-X 1999 1500 Valkyrie Street
GL1500C-Y 2000 1500 Valkyrie Street
GL500-B 1981 500 GL500 Silver Wing Touring
GL500-C 1982 500 GL500 Silver Wing Touring
NSS250-1 2001 250 NSS250 Reflex Scooter
NSS250-2 2002 250 NSS250 Reflex Scooter
NSS250-3 2003 250 NSS250 Reflex Scooter
NSS250-4 2004 250 NSS250 Reflex Scooter
NSS250-5 2005 250 NSS250 Reflex Scooter
NSS250-6 2006 250 NSS250 Reflex Scooter
NSS250-7 2007 250 NSS250 Reflex Scooter
NSS250A-1 2001 250 NSS250A Reflex Scooter
NSS250A-2 2002 250 NSS250A Reflex Scooter
NSS250A-3 2003 250 NSS250A Reflex Scooter
NSS250A-4 2004 250 NSS250A Reflex Scooter
NSS250A-5 2005 250 NSS250A Reflex Scooter
NSS250A-6 2006 250 NSS250A Reflex Scooter
NSS250A-7 2007 250 NSS250A Reflex Scooter
NSS250AS-4 2004 250 NSS250AS Reflex Scooter
NSS250AS-5 2005 250 NSS250AS Reflex Scooter
NSS250AS-6 2006 250 NSS250AS Reflex Scooter
NSS250AS-7 2007 250 NSS250AS Reflex Scooter
NSS250S-4 2004 250 NSS250S Reflex Scooter
NSS250S-5 2005 250 NSS250S Reflex Scooter
NSS250S-6 2006 250 NSS250S Reflex Scooter
NSS250S-7 2007 250 NSS250S Reflex Scooter
PC800-K 1989 800 PC800 Pacific Coast Touring
PC800-L 1990 800 PC800 Pacific Coast Touring
PC800-R 1994 800 PC800 Pacific Coast Touring
PC800-S 1995 800 PC800 Pacific Coast Touring
PC800-T 1996 800 PC800 Pacific Coast Touring
PC800-V 1997 800 PC800 Pacific Coast Touring
PC800-W 1998 800 PC800 Pacific Coast Touring
PS250-5 2005 250 PS250 Big Ruckus Scooter
PS250-6 2006 250 PS250 Big Ruckus Scooter
ST1100-1 2001 1100 ST1100 (Pan-European) Touring
ST1100-2 2002 1100 ST1100 (Pan-European) Touring
ST1100A-N 1992 1100 ST1100 ABS (Pan-European) Touring
ST1100A-P 1993 1100 ST1100 ABS (Pan-European) Touring
ST1100A-R 1994 1100 ST1100 ABS (Pan-European) Touring
ST1100A-S 1995 1100 ST1100 ABS (Pan-European) Touring
ST1100-M 1991 1100 ST1100 (Pan-European) Touring
ST1100-N 1992 1100 ST1100 (Pan-European) Touring
ST1100-P 1993 1100 ST1100 (Pan-European) Touring
ST1100-R 1994 1100 ST1100 (Pan-European) Touring
ST1100-S 1995 1100 ST1100 (Pan-European) Touring
ST1100-T 1996 1100 ST1100 (Pan-European) Touring
ST1100-V 1997 1100 ST1100 (Pan-European) Touring
ST1100-W 1998 1100 ST1100 (Pan-European) Touring
ST1100-X 1999 1100 ST1100 (Pan-European) Touring
ST1100-Y 2000 1100 ST1100 (Pan-European) Touring
VF500C-E 1984 500 V30 Magna Street
VF500C-F 1985 500 V30 Magna Street
VFR800-2 2002 800 VFR800 Interceptor Street
VFR800-3 2003 800 VFR800 Interceptor Street
VFR800-4 2004 800 VFR800 Interceptor Street
VFR800-5 2005 800 VFR800 Interceptor Street
VFR800-6 2006 800 VFR800 Interceptor Street
VFR800-7 2007 800 VFR800 Interceptor Street
VFR800-8 2008 800 VFR800 Interceptor Street
VFR800A-2 2002 800 VFR800 Interceptor ABS Street
VFR800A-3 2003 800 VFR800 Interceptor ABS Street
VFR800A-4 2004 800 VFR800 Interceptor ABS Street
VFR800A-5 2005 800 VFR800 Interceptor ABS Street
VFR800A-6 2006 800 VFR800 Interceptor ABS Street
VFR800A-7 2007 800 VFR800 Interceptor ABS Street
VFR800A-8 2008 800 VFR800 Interceptor ABS Street
VT500C-D 1983 500 VT500C Shadow 500 Street
VT500C-E 1984 500 VT500C Shadow 500 Street
VT500C-F 1985 500 VT500C Shadow 500 Street
VT500C-G 1986 500 VT500C Shadow 500 Street
VT500FT-D 1983 500 VT500FT Ascot Street
VT500FT-E 1984 500 VT500FT Ascot Street
VT700C-G 1986 700 VT700C Shadow 700 Street
VT700C-H 1987 700 VT700C Shadow 700 Street
VTR1000F-5 2005 1000 Superhawk 1000 Street
VTX1800C1-5 2005 1800 VTX1800C Spec 1 Street
VTX1800C1-6 2006 1800 VTX1800C Spec 1 Street
VTX1800C1-7 2007 1800 VTX1800C Spec 1 Street
VTX1800C-2 2002 1800 VTX1800C Street
VTX1800C2-5 2005 1800 VTX1800C Spec 2 Street
VTX1800C2-6 2006 1800 VTX1800C Spec 2 Street
VTX1800C-3 2003 1800 VTX1800C Street
VTX1800C3-5 2005 1800 VTX1800C Spec 3 Street
VTX1800C3-6 2006 1800 VTX1800C Spec 3 Street
VTX1800C-4 2004 1800 VTX1800C Street
VTX1800F1-5 2005 1800 VTX1800F Spec 1 Street
VTX1800F1-6 2006 1800 VTX1800F Spec 1 Street
VTX1800F1-7 2007 1800 VTX1800F Spec 1 Street
VTX1800F1-8 2008 1800 VTX1800F Spec 1 Street
VTX1800F2-5 2005 1800 VTX1800F Spec 2 Street
VTX1800F2-6 2006 1800 VTX1800F Spec 2 Street
VTX1800F2-7 2007 1800 VTX1800F Spec 2 Street
VTX1800F3-5 2005 1800 VTX1800F Spec 3 Street
VTX1800F3-6 2006 1800 VTX1800F Spec 3 Street
VTX1800F3-7 2007 1800 VTX1800F Spec 3 Street
VTX1800F3-8 2008 1800 VTX1800F Spec 3 Street
VTX1800N1-4 2004 1800 VTX1800N Spec 1 Street
VTX1800N1-5 2005 1800 VTX1800N Spec 1 Street
VTX1800N1-6 2006 1800 VTX1800N Spec 1 Street
VTX1800N1-7 2007 1800 VTX1800N Spec 1 Street
VTX1800N1-8 2008 1800 VTX1800N Spec 1 Street
VTX1800N2-4 2004 1800 VTX1800N Spec 2 Street
VTX1800N2-5 2005 1800 VTX1800N Spec 2 Street
VTX1800N2-6 2006 1800 VTX1800N Spec 2 Street
VTX1800N2-7 2007 1800 VTX1800N Spec 2 Street
VTX1800N3-4 2004 1800 VTX1800N Spec 3 Street
VTX1800N3-5 2005 1800 VTX1800N Spec 3 Street
VTX1800N3-6 2006 1800 VTX1800N Spec 3 Street
VTX1800N3-7 2007 1800 VTX1800N Spec 3 Street
VTX1800N3-8 2008 1800 VTX1800N Spec 3 Street
VTX1800R1-4 2004 1800 VTX1800R Spec 1 Street
VTX1800R1-5 2005 1800 VTX1800R Spec 1 Street
VTX1800R1-6 2006 1800 VTX1800R Spec 1 Street
VTX1800R1-7 2007 1800 VTX1800R Spec 1 Street
VTX1800R-2 2002 1800 VTX1800R Street
VTX1800R2-4 2004 1800 VTX1800R Spec 2 Street
VTX1800R2-5 2005 1800 VTX1800R Spec 2 Street
VTX1800R2-6 2006 1800 VTX1800R Spec 2 Street
VTX1800R2-7 2007 1800 VTX1800R Spec 2 Street
VTX1800R-3 2003 1800 VTX1800R Street
VTX1800R3-4 2004 1800 VTX1800R Spec 3 Street
VTX1800R3-5 2005 1800 VTX1800R Spec 3 Street
VTX1800R3-6 2006 1800 VTX1800R Spec 3 Street
VTX1800R3-7 2007 1800 VTX1800R Spec 3 Street
VTX1800S1-4 2004 1800 VTX1800S Spec 1 Street
VTX1800S1-5 2005 1800 VTX1800S Spec 1 Street
VTX1800S1-6 2006 1800 VTX1800S Spec 1 Street
VTX1800S-2 2002 1800 VTX1800S Street
VTX1800S2-4 2004 1800 VTX1800S Spec 2 Street
VTX1800S2-5 2005 1800 VTX1800S Spec 2 Street
VTX1800S2-6 2006 1800 VTX1800S Spec 2 Street
VTX1800S-3 2003 1800 VTX1800S Street
VTX1800S3-4 2004 1800 VTX1800S Spec 3 Street
VTX1800S3-5 2005 1800 VTX1800S Spec 3 Street
VTX1800S3-6 2006 1800 VTX1800S Spec 3 Street
VTX1800T1-7 2007 1800 VTX1800T Spec 1 Street
VTX1800T1-8 2008 1800 VTX1800T Spec 1 Street
VTX1800T2-7 2007 1800 VTX1800T Spec 2 Street
VTX1800T3-8 2008 1800 VTX1800T Spec 2 Street
