{"product_id":"powerstop-l3781-disc-brake-caliper-rear-right","title":"PowerStop L3781 Disc Brake Caliper - Rear Right","description":"\u003ch2\u003ePowerStop Rear OE Stock Replacement Caliper Overview\u003c\/h2\u003e\u003cp\u003eThe PowerStop - Rear OE Stock Replacement Caliper (Part Number L3781) is designed specifically for Subaru Impreza and WRX STI models. This fixed disc brake caliper offers reliable braking performance with durable aluminum construction and precise engineering to match original equipment specifications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFixed caliper type with two aluminum pistons\u003c\/li\u003e\n\u003cli\u003eCaliper casting made from lightweight aluminum\u003c\/li\u003e\n\u003cli\u003eGray finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePiston diameter of 36.00 mm for consistent braking force\u003c\/li\u003e\n\u003cli\u003eCompatible with Subaru Impreza and WRX STI rear brake systems\u003c\/li\u003e\n\u003cli\u003eInlet and bleeder screw thread size M10 x 1.0\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details: PowerStop - Rear OE Stock Replacement Caliper\u003c\/h2\u003e\u003cp\u003eThe PowerStop - Rear OE Stock Replacement Caliper line focuses on providing direct replacement calipers that meet original equipment standards. This product line is engineered to restore braking performance to factory levels without requiring additional modifications. The L3781 caliper maintains the same mounting points and piston configuration as the original Subaru rear calipers, ensuring a straightforward replacement process.\u003c\/p\u003e\u003ch2\u003eTechnical Description and Features\u003c\/h2\u003e\u003cp\u003eThis disc brake caliper features a fixed design with two aluminum pistons, each measuring 36.00 mm in diameter. The use of aluminum for both the caliper casting and pistons reduces unsprung weight while maintaining strength and heat dissipation. The gray color finish helps resist corrosion and wear over time. The caliper is designed without included mounting hardware or caliper slides, so existing components must be reused or sourced separately. Thread sizes for the inlet and bleeder screw are both M10 x 1.0, matching Subaru's specifications for rear brake hydraulics.\u003c\/p\u003e\u003ch2\u003eCompatible Applications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or leaking rear calipers on Subaru Impreza and WRX STI\u003c\/li\u003e\n\u003cli\u003eRestores proper piston movement and brake pad engagement\u003c\/li\u003e\n\u003cli\u003eAddresses brake drag or uneven pad wear caused by faulty calipers\u003c\/li\u003e\n\u003cli\u003eImproves rear braking response and pedal feel\u003c\/li\u003e\n\u003cli\u003eSuitable for vehicles experiencing brake fluid leaks or piston corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with your specific Subaru Impreza or WRX STI model year\u003c\/li\u003e\n\u003cli\u003eReuse existing mounting hardware and caliper slides as these are not included\u003c\/li\u003e\n\u003cli\u003eEnsure proper bleeding of brake system after installation to remove air\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and rotors for wear and replace if necessary\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for mounting bolts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003ePowerStop manufactures this rear OE stock replacement caliper to meet or exceed original equipment standards. The aluminum construction and precise piston sizing contribute to consistent braking performance and durability. While specific warranty details are not provided, PowerStop products typically come with a limited warranty against defects in materials and workmanship. It is recommended to consult the product packaging or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":51809488208053,"sku":"BHKQ-L3781","price":182.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_L3781_Fro.jpg?v=1775165368","url":"https:\/\/www.partcatalog.com\/products\/powerstop-l3781-disc-brake-caliper-rear-right","provider":"PartCatalog","version":"1.0","type":"link"}