{"product_id":"powerstop-l1378-disc-brake-caliper-rear-left","title":"PowerStop L1378 Disc Brake Caliper - Rear Left","description":"\u003ch2\u003ePowerStop Rear OE Stock Replacement Caliper Overview\u003c\/h2\u003e\u003cp\u003eThe PowerStop - Rear OE Stock Replacement Caliper (Part Number L1378) is designed specifically for Mazda Miata models requiring reliable rear disc brake caliper replacement. Engineered to meet original equipment specifications, this floating caliper ensures consistent braking performance and durability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaliper type: Floating with one piston\u003c\/li\u003e\n\u003cli\u003eCaliper casting material: Durable cast iron construction\u003c\/li\u003e\n\u003cli\u003ePiston diameter: 31.67 mm steel piston for strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eCaliper slides included for smooth operation\u003c\/li\u003e\n\u003cli\u003eMounting bracket included for proper fitment\u003c\/li\u003e\n\u003cli\u003eCaliper color: Gray finish\u003c\/li\u003e\n\u003cli\u003eInlet thread size: M10 x 1.0\u003c\/li\u003e\n\u003cli\u003eBleeder screw thread size: M7 x 1.0\u003c\/li\u003e\n\u003cli\u003eGrade type: Regular\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the PowerStop - Rear OE Stock Replacement Caliper Line\u003c\/h2\u003e\u003cp\u003eThe PowerStop - Rear OE Stock Replacement Caliper product line focuses on providing direct OE replacement parts that maintain factory performance and fitment. This line is tailored for drivers who need a dependable rear disc brake caliper that matches the original specifications of their vehicle. The L1378 caliper is part of this line, offering a cast iron floating caliper solution with included caliper slides and mounting bracket to ensure proper installation and operation on compatible vehicles.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis PowerStop rear disc brake caliper is constructed from cast iron, providing the necessary strength and heat dissipation required for rear braking applications on the Mazda Miata. The single steel piston with a diameter of 31.67 mm delivers consistent clamping force, while the floating caliper design allows for self-alignment during braking. Included caliper slides and mounting bracket facilitate smooth movement and secure attachment. The gray finish offers corrosion resistance and a clean appearance. Thread sizes for the inlet (M10 x 1.0) and bleeder screw (M7 x 1.0) match OE specifications, ensuring compatibility with existing brake lines and bleeding tools.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or leaking rear disc brake calipers on Mazda Miata models\u003c\/li\u003e\n\u003cli\u003eAddresses issues such as uneven brake pad wear or reduced braking efficiency\u003c\/li\u003e\n\u003cli\u003eResolves caliper piston sticking or binding problems\u003c\/li\u003e\n\u003cli\u003eSuitable for restoring rear brake performance after damage or corrosion\u003c\/li\u003e\n\u003cli\u003eUsed when upgrading to OE stock replacement parts for maintenance or repair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the brake system is properly bled after installation to remove air and maintain braking performance. Verify that the mounting bracket is securely fastened and that caliper slides move freely to prevent uneven pad wear. Use compatible brake fluid and follow vehicle-specific torque specifications for all fasteners. This caliper does not include mounting hardware, so retain original bolts or source appropriate replacements if necessary.\u003c\/p\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 cast iron construction and steel piston materials are selected for durability and consistent performance. While specific warranty details are not provided here, PowerStop products typically come with manufacturer-backed quality assurance to support reliable operation on Mazda Miata vehicles.\u003c\/p\u003e","brand":"PowerStop","offers":[{"title":"Default Title","offer_id":51809467695285,"sku":"BHKQ-L1378","price":161.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/P8_L1378_Fro.jpg?v=1775165291","url":"https:\/\/www.partcatalog.com\/products\/powerstop-l1378-disc-brake-caliper-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}