Oil leaking into the spark plug wells is a common issue on aging Z32 engines and can cause misfires or difficult plug changes. The genuine Nissan Spark Plug Tube Seal, Lower Inner (part number 13295-30P20) is the factory lower seal used on the Fairlady Z / 300ZX Z32, designed to keep oil from entering the spark plug tubes.
This OEM seal sits at the lower end of the spark plug tube and forms a critical barrier between the valvetrain area and the plug well. Over time the original seals can harden, crack, or lose elasticity, allowing oil to seep past and contaminate the spark plugs. Replacing them with the correct genuine Nissan part restores the intended sealing function and helps keep the plug wells clean and dry. These lower inner seals are typically replaced whenever the valve covers are removed or when oil is found in the spark plug tubes.
Whether you are addressing existing oil intrusion, performing valve cover service, or completing a more thorough engine refresh, these seals are an important detail for reliable ignition performance. At Terra Firma Automotive, we supply this genuine Nissan Spark Plug Tube Seal for Z32 owners who prefer authentic OEM sealing components. Choose Terra Firma Automotive for correct-fit Nissan parts that help keep oil where it belongs on the Fairlady Z and 300ZX.
- USDM 300ZX (Z32): 1990-1996 (both non-turbo VG30DE and twin-turbo VG30DETT models, 2-seater and 2+2)
- JDM Fairlady Z (Z32): 1989-1996 (both non-turbo and twin-turbo models)
- Genuine Nissan Spark Plug Tube Seal, Lower Inner
- Part Number: 13295-30P20
- Location: Lower inner seal for spark plug tubes
- Prevents oil from entering the spark plug wells
- Replaces hardened, cracked, or leaking original seals
- Helps avoid oil-fouled spark plugs and misfires
- OEM material and dimensions for proper sealing
- Commonly replaced during valve cover service
- Suitable for maintenance or engine refresh work
- Ideal for Z32 owners addressing oil in plug wells
- Trusted genuine Nissan sealing component
- Available from Terra Firma Automotive
Questions & Answers
Have a Product Question?
Be the first to ask a question about this part.