Bosch WR7DC Spark Plug — Air-Cooled Porsche

The right heat-range spark plug matters on an air-cooled engine - the wrong plug causes fouling, pre-ignition, or poor cold starting.

Vehicle Fitment

• Confirmed: 1965-1989 Porsche 911, 1965-1969 Porsche 912, 1969-1976 Porsche 914, 1975-1989 Porsche 930
• Verify before ordering: confirm your model year and engine variant against your VIN/chassis number

Key Features & Benefits

• Genuine Bosch WR7DC copper spark plug
• Correct heat range for air-cooled Porsche 911/912/914/930 engines
• Reliable cold starting and clean combustion
• Sold individually - verify total quantity needed for your engine

Technical Specifications

• Brand: Bosch
• Part Number: 999.170.156.90
• Material: copper core/nickel
• Country of Origin: Not verified for this listing - contact us to confirm

FAQ

• Q: Will this fit my 1965-1989 Porsche 911?
  A: This part is confirmed for 1965-1989 Porsche 911, 1965-1969 Porsche 912, 1969-1976 Porsche 914, 1975-1989 Porsche 930. Cross-check your VIN/chassis to confirm your exact model and engine variant before ordering.
• Q: Is this a genuine Bosch part?
  A: Yes - this is a genuine Bosch part, number 999.170.156.90, sold by Washburn's Metal.

⚠ WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.