DIAPHRAGM MASTER CYLINDER, 45520-371-01, HONDA, 32-7638 SOLD EACH

Part No. 42-6903 (phoenixmotos.com)
MASTER CYLINDER RESERVOIR DIAPHRAGMS [Sold Each]
Made in Japan.
Here is the fix for leaking Master Cylinder reservoirs. Available for many popular applications.

Cross reference numbers ONLY. 45520-371-01, 32-7638
1975-1978 HONDA GL1000K GOLDWING FRONT BRAKE MASTER CYLINDER
1988-2003 HONDA GL1500 GOLDWING REAR BRAKE MASTER CYLINDER