The PowerStop L3781 rear right brake caliper offers a reliable, bolt-on replacement that mirrors factory specifications to restore proper braking on compatible vehicles. This unit is remanufactured in PowerStop’s U.S. facility, then pressure-tested and outfitted with new seals, boots, bleeder screw and premium high-temperature lubricant — ensuring safe, dependable operation. With its aluminum casting and stock-style design, it supports original fitment and performance without the cosmetic or performance enhancements of specialty aftermarket calipers.
Features:
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Aluminum cast caliper housing, remanufactured to meet OEM shape and mounting.
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2-piston design; piston diameter approx. 36.00 mm (1.41 in) for consistent clamping force.
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Bleeder screw thread size: M10 × 1.0 mm — ensures proper brake fluid bleeding and maintenance.
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High-temperature EPDM rubber dust boots and premium silicone lubricant applied to guide pins for improved durability and smoother operation.
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100 % pressure-tested units to verify piston operation and no fluid leaks.
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Sold individually — one caliper per unit (passenger side, rear).
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Direct-fit for specified vehicles; no bracket or mounting hardware included, so reuse of existing hardware is required.
Fitment:
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2012 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI Limited
2013 Subaru Impreza WRX STI
2013 Subaru Impreza WRX STI Limited
2014 Subaru Impreza WRX STI
2014 Subaru Impreza WRX STI Limited
2015 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015 Subaru WRX STI Limited
2016 Subaru WRX STI Base
2016 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2017 Subaru WRX STI Base
2017 Subaru WRX STI Limited
