{"product_id":"dorman-w78745-drum-brake-wheel-cylinder-rear-right-rear-right-lower-or-rear-right-upper","title":"Dorman W78745 Drum Brake Wheel Cylinder - Rear Right, Rear Right Lower or Rear Right Upper","description":"\u003ch2\u003eReliable Drum Brake Wheel Cylinder for Chevrolet P30\u003c\/h2\u003e\u003cp\u003eThe Dorman W78745 drum brake wheel cylinder is engineered to restore proper braking function for Chevrolet P30 vehicles. Designed with durable cast iron and precise dimensions, this wheel cylinder ensures consistent hydraulic pressure and reliable performance.\u003c\/p\u003e\u003ch2\u003eKey Features of Dorman W78745 Wheel Cylinder\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIncludes bleeder screw for easy brake system bleeding\u003c\/li\u003e\n\u003cli\u003eCast iron construction for strength and durability\u003c\/li\u003e\n\u003cli\u003e1.5 inch bore diameter for accurate fit and function\u003c\/li\u003e\n\u003cli\u003eBrake line inlet thread diameter of 0.437 inches\u003c\/li\u003e\n\u003cli\u003eBrake component inlet thread size 7\/16-24 for secure connections\u003c\/li\u003e\n\u003cli\u003ePackage contains one drum brake wheel cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman W78745 drum brake wheel cylinder is specifically designed for the Chevrolet P30, providing a precise fit and reliable brake hydraulics performance. Constructed from cast iron, this wheel cylinder offers resistance to wear and corrosion, extending the service life of your braking system. The included bleeder screw simplifies maintenance by allowing efficient removal of air from the brake lines. With a bore diameter of 1.5 inches and a brake line inlet thread diameter of 0.437 inches, this component meets OEM specifications to maintain proper hydraulic pressure and braking response.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores braking performance in Chevrolet P30 drum brake systems\u003c\/li\u003e\n\u003cli\u003eReplaces leaking or damaged wheel cylinders causing brake fluid loss\u003c\/li\u003e\n\u003cli\u003eEliminates spongy brake pedal feel due to air in brake lines\u003c\/li\u003e\n\u003cli\u003eAddresses uneven brake wear caused by faulty hydraulic pressure\u003c\/li\u003e\n\u003cli\u003ePrevents brake failure from corroded or seized wheel cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman W78745 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air pockets. Verify thread sizes match your vehicle’s brake lines to avoid leaks. Inspect surrounding brake components for wear or damage during installation to maintain overall system integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the W78745 wheel cylinder to meet or exceed industry standards for brake hydraulics. The cast iron construction and precise machining contribute to reliable, long-lasting performance. Warranty details are provided by Dorman and should be reviewed to understand coverage specifics.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":51915826102453,"sku":"BKKX-W78745","price":61.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DB_W78745_Fro.jpg?v=1774997938","url":"https:\/\/www.partcatalog.com\/products\/dorman-w78745-drum-brake-wheel-cylinder-rear-right-rear-right-lower-or-rear-right-upper","provider":"PartCatalog","version":"1.0","type":"link"}