HVAC Control Panel - 1991 300ZX Z32

When sourcing a Nissan 300ZX Z32 HVAC control panel for your twin-turbo VG30DETT, critical verification is required between manual climate control (three rotary knobs) and the optional automatic system (digital display with buttons). The manual control carries OEM number 27510-30P00 for 1990-1993 models, while later 1994-1996 facelifts used 27510-40P00 with potentially different multi-pin connectors. Automatic climate units typically use 27510-30P01 or 27510-40P01 depending on production year. These components interchange between naturally aspirated and twin-turbo models only within identical climate control types—never attempt to swap manual and automatic units due to incompatible wiring harnesses and vacuum line configurations. At the junkyard, test all button tactile response and illumination before extraction. Remove the center trim bezel carefully to avoid snapping brittle plastic clips that secure the panel. Inspect the rear connector for green corrosion or bent pins. Casting numbers like DENSO 063700-XXXX stamped on the housing often outlast Nissan's paper labels for accurate identification.