Rear Drum Brake Wheel Cylinder 14-WC370180 For Chevrolet GMC Silverado 1500 Sierra Colorado Canyon

KingStar wheel cylinders are factory tested with a pressure of 45 psi of dry air to ensure unmatched robustness. The test checks for porosity, leaks, presence, position and quality of cups, surface finish of bores and bleeder seal. All castings meet S.A.E. J431 Standards, and bleeder screws are case hardened for long, reliable life. Brake cups meet S.A.E. Standard J1601. Durable boots are made from premium EPDM rubber, meeting S.A.E. Standar J1604. KingStar wheel cylinders have been the reference accross North America for over 40 years. Engineered with Heat-Flowed cast iron to give our wheel cylinders the ideal balance between tensile strength and hardness Anodized coating provides complete 360º protection against rust, moisture and oxidation Reinforced pistons (FeSi) feature higher tolerance to pressure and increased wear resistance PCRVi (Pressure Conscious Reducing Valve integrated) reduces pressure buildup Trivalent-coated bleeder screws provide extra protection and added durability Premium ProSeal™ Nitrile Rubber (NBR) cups and boots for long lasting performance Wheel cylinder bores are surface tested to ensure an optimum sealing surface for the pressure cups Part Reference Numbers : 34244 34285 WC250980 W610121 W610131 19133369 19213348 8-19213-348-0 8-89058-902-0 89058902 89059126 WC370148 WC370180 WC141537 WC141538 Interchange Part Number(s): 34244 34285 WC250980 W610121 W610131 19133369 19213348 8-19213-348-0 8-89058-902-0 89058902 89059126 WC370148 WC370180 WC141537 WC141538