Front Right Brake Caliper - 1991 300ZX Z32

The Nissan 300ZX Z32 Twin Turbo utilizes a robust 4-piston aluminum fixed caliper manufactured by Sumitomo on the front right position, assigned Nissan part number 41001-30P00 (superseded to 41001-30P01). This component fits exclusively 1990-1996 Turbo models and does NOT interchange with Non-Turbo variants, which employ inferior sliding caliper designs with smaller piston diameters. When sourcing from salvage yards, verify the casting marks "SUMITOMO" and 30P series stamps, as these outlast superseded OEM catalog numbers. Inspection requires checking for piston bore pitting, torn dust boots, and seized bleeder screws—common failures after 30+ years of exposure. Installation demands strict adherence to banjo bolt torque specifications (typically 18-22 ft-lbs) and proper copper washer orientation to prevent hydraulic leaks. Always replace crush washers and verify pad clip retention during service. Note that right-side calipers differ from left-side units (41011-30P00 series) and cannot be swapped due to hydraulic entry port positioning.