Heat treated power springs for maximum output force and extended life, powder coated for corrosion protection Double o-ring center seal and wears rings extend service life and protect against air leakage between chambers Patented orange alert stoke indicator is visible when brakes are out of alignment Aluminum center body is durable, lightweight and corrosion resistant Epoxy coated clampband and service return spring for additional corrosion resistance
9.3 IN 235 MM
6.8 IN 172 MM
World Class Diaphragm; High quality rubber compound, resistant to heat and cold; Superior flexibility even at -40F. Sizes to fit all drum brake applications. Self-piloting Dust Shield. Orange Alert Stroke Indicator Superior Power Spring Technology; Advanced powder coating process; Resists corrosion and fatigue. Double O-ring Centerseal; Two o-rings for positive sealing and plastic bearings for long life.