Rear Center Seat Belt Assembly - 1991 300ZX Z32

When sourcing a rear center seat belt for the Nissan Z32 300ZX, first confirm you have the 2+2 (four-seat) body style—2-seater models lack this component entirely. The correct OEM Nissan part numbers are 86842-30P01 for 1990-1993 production and 86842-40P01 for 1994-1996 facelift cars, with the latter superseding earlier numbers but requiring verification of anchor bolt compatibility. In the junkyard, test the retractor mechanism by pulling the webbing fully and ensuring it locks under tension and retracts smoothly; Z32 units are prone to spring fatigue after 30+ years. Inspect the plastic guide above the retractor for cracks, as this causes webbing fray. Installation requires 27-32 ft-lb torque on the anchor bolts using only Nissan-specified Grade 8.8 hardware—never reuse twisted or corroded bolts, as these are single-use torque-to-yield fasteners critical in a collision.