498680 PISTON RING FIT BS 137202 135232 135292 135202 10G902 10D902 10C902 10A982 10A902 09D902 098902 093432 Piston ring model 498680 designed to fit specifications BS 137202, 135232, 135292, 135202, 10G902, 10D902, 10C902, 10A982, 10A902, 09D902, 098902, 093432.Constructed for use in compatible engine applications requiring this standard.proper sealing between piston and cylinder wall to support efficient combustion and engine performance.Meets dimensional and material requirements for the specified fitment standards.