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Looking for the master cylinder part number or piston rebuild kit for your Honda CX500, GL500, CX650, GL650 or Turbo? Find the list here with links to genuine items when possible!
Not sure what the product code numbers equate to? See this page.
Wondering what all the sub-script Z/A/B/C is about? See this page. The year code, listed year below and year your bike is actually registered/complianced may not match - for example, some 1981 CX500CBs may not have been complianced until 1982 and would be marked as 1982 on the compliance plate. You may see the year code written in sub-script in some areas online and in publications and not in others.
Honda's country codes can be found on this page - that's the U, CM, DK etc. listed below.
The majority of this data was collated by Georg Henkelmann. Thanks, Georg!
| Year | Bike | Master Cylinder Part Number (links to sources) |
Piston set Part Number (link to rebuild kit) |
Bore diameter |
|---|---|---|---|---|
| 1978 | CX500 (U) | 45500‑413‑651 CMSNL |
45530‑404‑305 CMSNL |
14mm |
| 1978 | CX500 (CM) | 45500‑413‑671 | 45530‑404‑305 CMSNL |
14mm |
| 1978 | CX500 (DK,DM,SA) | 45500‑413‑681 CMSNL |
45530‑404‑305 CMSNL |
14mm |
| 1978 | CX500 (DK,DM,SA) | 45500‑413‑682 | 45530‑404‑305 CMSNL |
14mm |
| 1978 | CX500 (E,ED,F,1G,2G,IT) | 45500‑415‑611 CMSNL |
45530‑415‑610 | 15.8mm |
| 1980 | CX500A (DK,DM,SA,U) | 45500‑415‑761 | 45530‑422‑315 CMSNL | 15.8mm |
| 1980 | CX500A (E,ED,F,1G,2G,IT) | 45500‑463‑601 | 45530‑422‑315 CMSNL | 15.8mm |
| 1981 | CX500B (DE,E,ED,F,1G,2G,IT,U) | 45500‑445‑631 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1979 | CX500CZ Custom (CM) (serials to 2012063) |
45500‑449‑671 | 45530‑442‑305 CMSNL |
14mm |
| 1979 | CX500CZ Custom (CM) (serial 2012064 and above) |
45500-449-672 | 45530‑442‑305 CMSNL |
14mm |
| 1979 | CX500CZ Custom (DE,E,ED,F,1G,2G,IT) | 45500‑463‑611 CMSNL |
45530‑422‑305 CMSNL |
15.8mm |
| 1980 | CX500CA Custom (U) | 45500‑463‑651 | 45530‑422‑305 CMSNL |
15.8mm |
| 1980 | CX500CA Custom (CM) | 45500‑449‑771 | 45530‑422‑305 CMSNL |
14mm |
| 1981 | CX500CB Custom (CM) | 45500‑447‑731 | 45530‑MA4‑671 CMSNL |
14mm |
| 1981 | CX500CB Custom (DE,E,ED,F,G,G2,IT,U) | 45500-MA5-671 | 445530‑MA5‑671 CMSNL |
15.8mm |
| 1982 | CX500CC Custom (CM) | 45500-447-731 | 445530‑MA4‑671 CMSNL |
14mm |
| 1982 | CX500CC Custom (DE,E,ED,F,G,G2,IT,U,ND) | 45500‑MA5‑671 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1979 | CX500DZ Deluxe (CM) | 45500‑415‑771 | 45530‑442‑305 CMSNL |
14mm |
| 1980 | CX500DA Deluxe (CM) | 45500-470-671 | 45530‑442‑305 CMSNL |
14mm |
| 1981 | CX500DB Deluxe (CM) | 45500‑MA4‑672 | 45530‑MA4‑671 CMSNL |
14mm |
| 1982 | CX500EC Sports (Front) | 45500‑445‑631 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1982 | CX500EC Sports (Rear) | 43500‑MC7‑006(superseded by 43500‑MC7‑016) |
43520‑461‑771 CMSNL |
14mm |
| 1982 | CX400EC Sports (Front) | 45500‑445‑631 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1982 | CX400EC Sports (Rear) | 43500‑MC7‑006(superseded by 43500‑MC7‑016) |
43520‑461‑771 CMSNL |
14mm |
| 1983 | CX650ED Eurosport (Front) | 45500‑MG0‑611 CMSNL |
45530‑MA5‑671 CMSNL |
15.8mm |
| 1983 | CX650ED Eurosport (Rear) | 43500‑MC7‑006 (superseded by 43500‑MC7‑016) |
43520‑461‑771 CMSNL |
14mm |
| 1983 | CX650CD Custom | 45500‑ME8‑672 | 45530‑MA4‑671 CMSNL |
14mm |
| 1982 | CX500TC Turbo (Front) | 45500‑445‑632 | 445530‑MA5‑671 CMSNL |
15.8mm |
| 1982 | CX500TC Turbo (Rear) | 43500‑MC7‑016 | 43520‑461‑771 CMSNL |
14mm |
| 1983 | CX650TD Turbo(Front) | 45500‑MA7‑026 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1983 | CX650TD Turbo (Rear) | 43500‑MC7‑016 | 43520‑461‑771 CMSNL |
14mm |
| 1981 1982 |
GL500 Silverwing | 45500‑447‑732 | 45530‑MA4‑671 CMSNL |
14mm |
| 1981 1982 |
GL500I Silverwing Interstate | 45500‑MA5‑672 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1983 | GL650 Silverwing | 45500‑MA5‑672 | 45530‑MA5‑671 CMSNL |
15.8mm |
| 1983 | GL650I Silverwing Interstate | 45500‑MA5‑672 | 45530‑MA5‑671 CMSNL |
15.8mm |
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