Bosch Spark Plug W7AC for Porsche 356A/356B/356C/356SC/912 (1956–1969)

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This Bosch Spark Plug is a direct-fit replacement for Porsche 356A, 356B, 356C, 356SC, and 912 applications listed in the fitment table below. It provides the specified heat range and electrode design for the engines shown in the fitment table below. Bosch has been a global leader in automotive technology since 1886, pioneering innovations like electronic fuel injection and oxygen (lambda) sensors that shaped modern engine management. Today, Bosch supplies OEM-quality sensors, engine electronics, ignition components, and braking parts found in vehicles worldwide. Known for precision engineering and reliable performance, Bosch parts are built to factory specifications for dependable fitment and long-term durability.

Old plugs can lead to rough idle, misfire under load, and poor cold-start behavior. Replacing plugs with the correct Bosch specification keeps service work straightforward.

Technical Details

  • Manufacturer part number: 7596
  • Part type: Spark plug
  • Bosch plug family: W7AC
  • Traditional Bosch service plug commonly used on classic 356 and 912 applications

Fitment & Compatibility

Use the fitment table below to confirm the exact 356 or 912 year before ordering plugs.

If you need help sorting out the correct part for your Porsche, send us your VIN. We have been helping Porsche owners and shops with fitment questions for over 20 years, and the small details still matter because they do.

Year Make Model Submodel Notes
1956 Porsche 356A
1957 Porsche 356A
1958 Porsche 356A
1959 Porsche 356A
1960 Porsche 356B
1961 Porsche 356B
1962 Porsche 356B
1963 Porsche 356B
1964 Porsche 356C
1965 Porsche 356C
1964 Porsche 356SC
1965 Porsche 356SC
1965 Porsche 912
1966 Porsche 912
1967 Porsche 912
1968 Porsche 912
1969 Porsche 912