Idle hunting and a vacuum leak at the back of a Z32 plenum often start with the Auxiliary Air Control valve gasket. The Genuine Nissan AAC Valve Gasket is the factory seal between the intake plenum and the AAC / IACV valve on Fairlady Z and 300ZX Z32 engines.
Nissan lists this as the IACV-auxiliary air control valve gasket. One is required. It fits VG30DE and VG30DETT Z32 cars, USDM 1990–1996 300ZX and JDM Fairlady Z. The same number appears on several other Nissan platforms, but this listing is the Z32 piece used when the AAC valve comes off the rear of the plenum.
Reuse of a flattened or torn gasket leaves an air leak that upsets idle and cold-start control. Replace it whenever the AAC valve is cleaned or removed. At Terra Firma Automotive, we supply this genuine Nissan Z32 AAC valve gasket so Fairlady and 300ZX owners can reseal the idle-control valve with the correct OEM part. Choose Terra Firma Automotive for authentic Nissan intake hardware built for the Z32.
- Genuine Nissan AAC / IACV valve gasket
- Description: IACV-auxiliary air control valve gasket
- Application: Nissan Fairlady Z / 300ZX Z32
- Engines: VG30DE and VG30DETT
- USDM 300ZX 1990–1996
- JDM Fairlady Z
- Location: between plenum and AAC valve
- Quantity required: 1
- Restores idle-air seal
- Replace whenever the AAC valve is removed
- Direct OEM replacement
- Available from Terra Firma Automotive
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