Seat Height Adjustment Motor - 1991 300ZX Z32

The Nissan Z32 300ZX (1990-1996) power seat height adjustment motor, OEM reference 87032-40P00 for driver-side applications, commonly suffers from stripped nylon gears or burned windings after 30+ years. When sourcing from junkyards, target 1990-1996 300ZX variants including VG30DE and VG30DETT models, as the seat motors interchange across engine types though mounting brackets may differ slightly. Fairlady Z JDM equivalents work but verify connector colors. Inspect donor units by listening for smooth operation without clicking—grinding indicates cracked reduction gears inside the housing. The passenger-side counterpart (typically 87032-40P01) mirrors the driver unit but is not interchangeable due to mounting geometry and rotation direction. Installation requires removing the four seat track bolts and flipping the seat assembly to access the riveted motor housing. Drill out factory rivets carefully, transfer the mounting bracket to the replacement motor, and secure with grade 8 bolts and lock nuts. Verify the 2-pin connector matches your harness; early 1990-1992 models used a white connector while 1993-1996 switched to black. Always test operation before final reassembly.