Porsche 964/993 (1988-97) 1x Spark Plug 99917018390 NGK

Porsche 964 993 Carrera Spark Plug – NGK – 99917018390

A replacement NGK spark plug for the Porsche 964 and 993 Carrera applications listed below. Supplied individually for replacement of the corresponding plug type.

Key features:

• Includes one replacement spark plug
• NGK spark plug
• M14 × 1.25 thread with 19 mm thread length
• 16 mm spanner size
• Listed tightening torque: 28 Nm
• Spark position: 5.2 mm
• Heat range: 7

Fits:

• Porsche 964 3.6 Carrera coupé: July 1989–September 1993
• Porsche 964 3.6 Carrera 4 coupé: December 1988–September 1993
• Porsche 964 3.6 Carrera RS: June 1991–September 1993
• Porsche 964 3.6 Carrera Cabriolet: July 1989–May 1994; Carrera 4 Cabriolet: May 1989–May 1994
• Porsche 964 3.6 Carrera and Carrera 4 Targa: December 1988–September 1993
• Porsche 964 3.6 Carrera Speedster: August 1992–June 1994
• Porsche 993 3.6 Carrera coupé (286 PS): August 1995–September 1997
• Porsche 993 3.6 Carrera 4 coupé: July 1994–September 1997 (272/286 PS versions)
• Porsche 993 3.6 Carrera and Carrera 4 Cabriolet: July 1994–September 1997 (272/286 PS versions)
• Porsche 993 3.8 Carrera and Carrera 4, coupé and Cabriolet: June 1995–September 1997, for the listed 286 PS and 300/301 PS versions
• Porsche 993 3.8 Carrera RS: June 1995–September 1997
• Porsche 993 Targa: 3.6 Carrera August 1995–September 1997; 3.8 Carrera May 1996–September 1997

Fitment depends on the exact engine and ignition configuration. These are Carrera applications, not a general fitment listing for 964 or 993 Turbo models. Check the production date and plug reference against your vehicle before ordering.

Reference numbers:

• 99917018390
• 99917017890
• 99917018290

Partworks article number: 986

Supplied by Stuttgart Spares
Quality Porsche parts supplied from Cornwall, with specialist knowledge of classic and modern models.