There's another thread that mentions possible sources of Suzuki parts. I havent tried any of them so im just quoting what he said. Eto post nya:

Para lang makatulong sa ibang Suzuki Automobile owners kung saan makakakuha ng genuine Suzuki parts for our rides aside from CASA. Hope this helps.

FRONTE MOTOR PARTS - Banawe, Quezon City

3-B KABIGNAYAN ST., COR.
BANAWE ST. QUEZON CITY
PHONE NO.
71208647120919
FAX NO.
7120864


OLYMPIA AUTO SUPPLY - G.Araneta Ave., Quezon City

#256 G. ARANETA AVE., QUEZON CITY
PHONE NO. 7165386
FAX NO. 7137934 / 7165389


LINKS MOTOR SALES - Banawe, Quezon City

#129 BANAWE STREET QUEZON CITY
PHONE NO.
711-42-31
FAX NO.
711-30-22