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Bosch Spark Plug 7998 for Porsche 914 & VW Vanagon
Bosch Spark Plug 7998 for Porsche 914 & VW Vanagon
Bosch Spark Plug 7998 for Porsche 914 & VW Vanagon
Bosch Spark Plug 7998 for Porsche 914 & VW Vanagon

Bosch Spark Plug 7998 for Porsche 914 & VW Vanagon

BOSCH
Availability:
Out of stock
SKU 7998
Sold out
$9,999.00 - $9,999.00
$9,999.00
$9,999.00 - $9,999.00
$9,999.00
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The Bosch Spark Plug 7998 is a reliable replacement for Porsche 914 (1.7-2.0L) and Volkswagen Vanagon (1.9-2.1L) models. It provides dependable ignition and smooth engine operation. Bosch's copper core design ensures consistent spark and extended service life in these classic air- and water-cooled engines.

Key Features & Benefits

  • Copper Core: Provides excellent heat transfer and reliable ignition.
  • Nickel-Plated Housing: Resists rust and corrosion over long periods.
  • Wide Heat Range: Suitable for varied driving conditions.
  • OE Replacement: Matches original specifications for 914 and Vanagon models.

Vehicle Fitment

Make Model Years Engine
Porsche 914 1974–1976 2.0H4
Porsche 914 1974–1975 1.8H4
Porsche 914 1971–1973 1.7H4
Volkswagen Vanagon 1986–1991 2.1H4
Volkswagen Vanagon 1983–1985 1.9H4

Technical Specifications

Part Number 7998
Electrode Material Copper
Shell Material Nickel-Plated Steel

Installation Notes

Verify gap before installation and tighten to recommended torque.

About Bosch

Bosch is a leading global automotive parts manufacturer known for OEM-quality components and rigorous testing standards.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 5 applications
914
Make Model Engine Years
Porsche 914 2.0H4 1974–1976
Porsche 914 1.8H4 1974–1975
Porsche 914 1.7H4 1971–1973
Vanagon
Make Model Engine Years
Volkswagen Vanagon 2.1H4 1986–1991
Volkswagen Vanagon 1.9H4 1983–1985
Fits 5 vehicle applications Check vehicle fitment before ordering View fitment

About this Spark Plug

The BOSCH 7998 spark plug ignites the air and fuel in each cylinder. Worn plugs make the ignition system work harder and can cause misfires, rough running and higher fuel consumption.

Frequently asked questions

How often should I replace spark plugs?

Follow the interval in your car's maintenance schedule. Turbocharged engines and tuned engines often need plugs replaced sooner than naturally aspirated ones.

What are the signs of worn spark plugs?

Misfires or a check-engine light, rough idle, hesitation under acceleration, harder starting, and reduced fuel economy.

Do I need to gap new spark plugs?

Many modern plugs come pre-gapped and some iridium or platinum plugs should not be adjusted. Check the gap against your car's specification and only adjust it carefully if the plug maker allows it.

Can I replace spark plugs myself?

On most engines, yes. Work on a cold engine, blow debris out of the plug wells before removing plugs, thread new plugs in by hand first, and tighten to the specified torque.

How do I make sure this spark plug fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.