NK Rear Right Brake Caliper for Vauxhall Astra CDTi 1.7 July 2011 to July 2015 Posted on December 18, 2023 by admin Brake Caliper Type: Brake Caliper (1 piston). Paired Caliper Number: NK2136263. For Vehicles With Electric Parking Brake. For ATE OE Braking System. We aim to respond back to queries as quick as possible and this is normally within 24-48 hours.