Copper, Silver, and Platinum Spark Plugs - Select your Make

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Spark Plugs Information

Copper and Platinum Spark Plugs
The function of the spark plug is to introduce the ignition energy into the combustion chamber and to initiate combustion of the compressed air-fuel mixture. It accomplishes this task by generating a spark between its electrodes, which then generates the required heat to ignite a smooth burn of the air-fuel mixture.

The spark plug is an important factor in determining optimal performance and reliable functioning of an engine. These requirements apply throughout the entire service life of the spark plug. There are a large variety of different spark plug designs with more than 1,400 variations. Design variants and special materials such as platinum, silver, or Iridium.

During operation, the spark plug is subjected to both wear and to fouling and should be replaced at regular intervals. In the course of its service life, the spark plug undergoes changes that increase the required ignition voltage. When the required voltage reaches a level that can no longer be compensated for by the voltage reserve, the result is misfiring.

Independent tests have shown that installing premium spark plugs such as Bosch Platinum+4 improves fuel mileage by as much as 4.8% over original equipment plugs. Platinum+4 use race-tested technology including multiple electrode paths and more pure platinum to generate strong, consistent sparks.

As a rule, we recommend that you follow the replacement interval listed in your vehicle owners manual, however we highly recommend that you replace your spark plugs annually and replace as required, to insure optimum engine performance.

Popular Spark Plugs Parts

1987 Nissan 300ZX Bosch Spark Plugs SKU: BOS.1636054.7212

zoom Price: $5.36 List Price: $15.04 Quantity: Platinum+4 - NGK BCPR5ES-11 - Hot Heat Range for Low-speed Drivingg)

Fits the following Nissan 300ZX submodels 1987 300ZX V6 3.0L

1994 Saab 900 Bosch Spark Plugs SKU: BOS.1636054.7212

zoom Price: $5.36 List Price: $15.04 Quantity: Quality: OEM Platinum+4 -

Fits the following Saab 900 submodels 1994 900 L4 2.1L Convertible 1994 900 V6 2.5L Hatchback

1985 Mitsubishi Montero Bosch Spark Plugs SKU: BOS.1636251.7212

zoom Price: $5.36 List Price: $15.04 Quantity: exc. w/turbo - NGK BP6ES-11

Fits the following Mitsubishi Montero submodels 1985 Montero (Production Range Fr:06-00-84) 1985 Montero (Production Range To:05-00-84)

1991 Honda Civic Bosch Spark Plugs SKU: BOS.1640728.7212

zoom Price: $2.12 List Price: $5.82 Quantity: FR7DPX - NGK BCPR6E-11, for normal driving If using Bosch spark plugs for this application, note that Bosch recommends using #4417 (Platinum+4), 4201 (Platinum), or 7556 (Super).

Fits the following Honda Civic submodels 1991 CRX Base 1991 CRX HF 1991 CRX Si

2004 Volkswagen Phaeton Bosch Spark Plugs SKU: BOS.1736409.7212

zoom Price: $7.08 List Price: $11.48 Quantity: Quality: OEM Flat Seated Plug - Bosch Plug # FGR7KQEO

Fits the following Volkswagen Phaeton submodels 2004 Phaeton V8