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BMW Spark Plug

PART#: 6597
NGK
About NGK

NGK Spark Plug Co Ltd, founded in Nagoya, Japan, in November 1936, began delivering spark plugs to Japanese automakers just one year later.

NGK's first spark plug factory outside of Japan was built in 1959, marking a milestone in becoming one of the largest international automotive corporations. NGK's subsidiary was founded in the US in 1966, followed by Malaysia in 1973 and Indonesia in 1977.

The 1980s saw the founding of NGK subsidiaries in Australia and Canada, while operations in Europe began when the first NGK subsidiary was founded in England. NGK Spark Plug Deutschland started operating in 1979, but in 1989 the German subsidiary was renamed NGS Spark Plug Europe and took responsibility for all European affairs.

NGK supplies ignition and sensor components to the automotive, motorcycle, marine, and power tool markets. Ignition components include spark plugs, glow plugs, ignition coils, and ignition leads, while sensor components offered by NGK include oxygen sensors, exhaust gas temperature gauges, MAP/MAF sensors, and engine speed and position sensors.

In 2017, NGK announced its focus on solid-state batteries due to the anticipated shift to electric vehicles in the near future.

NGK is not only a genuine parts supplier for many automakers worldwide but also a prominent participant in motorsport. NGK spark plugs are used by many Formula One teams, including Ferrari, McLaren, Alfa Romeo, and others. NGK is the exclusive spark plug supplier for MotoGP2, Moto2, Moto3, and the Superbike World Championship.

Over time, NGK has been considered a leader in ignition technology and has made significant contributions to the evolution of the automotive industry. 

Warranty information
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation.
Specifications
Center Electrode Core MaterialCopper Core
Center Electrode Tip MaterialIridium
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel Core
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Hex Size13/16"
Insulator Height55.00
Manufacturer Heat Range5
Pre-Gap Size0.032
Reach0.75
Resistance5000
Seat TypeGasket
Thread Diameter0.551
Interchanges
BrandPart #
NGK6597
Fitments
VehiclePositionNote
1988 BMW 535i E28 Spark PlugGap 0.028" | 3.5 L6;
1988 BMW 535is E28 Spark PlugGap 0.028" | 3.5 L6;
1987 BMW 535i E28 Spark PlugGap 0.028" | 3.5 L6;
1987 BMW 635CSi E24 Spark PlugGap 0.028" | 3.5 L6;
1987 BMW 735i E32 Spark PlugGap 0.028" | 3.5 L6;
1987 BMW 735i E23 Spark PlugGap 0.028" | 3.5 L6;
1987 BMW L6 E24 Spark PlugGap 0.028" | 3.5 L6;
1986 BMW 535i E28 Spark PlugGap 0.028" | 3.5 L6;
1986 BMW 635CSi E24 Spark PlugGap 0.028" | 3.5 L6;
1986 BMW 735i E23 Spark PlugGap 0.028" | 3.5 L6;
1985 BMW 318i E30 Spark PlugGap 0.036" | 1.8 L4;
1985 BMW 535i E28 Spark PlugGap 0.028" | 3.5 L6;
1985 BMW 635CSi E24 Spark PlugGap 0.028" | 3.5 L6;
1985 BMW 735i E23 Spark PlugGap 0.028" | 3.5 L6;
1984 BMW 318i E30 Spark PlugGap 0.036" | 1.8 L4;
1984 BMW 533i E28 Spark PlugGap 0.028" | 3.2 L6;
1984 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1984 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1983 BMW 320i E21 Spark PlugGap 0.024" | 1.8 L4;
1983 BMW 533i E28 Spark PlugGap 0.028" | 3.2 L6;
1983 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1983 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1982 BMW 320i E21 Spark PlugGap 0.024" | 1.8 L4;
1982 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1982 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1981 BMW 320i E21 Spark PlugGap 0.024" | 1.8 L4;
1981 BMW 528i E12 Spark PlugGap 0.028" | 2.8 L6;
1981 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1981 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1980 BMW 320i E21 Spark PlugGap 0.024" | 1.8 L4;
1980 BMW 528i E12 Spark PlugGap 0.028" | 2.8 L6;
1980 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1980 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1979 BMW 320i E21 Spark PlugGap 0.024" | 2.0 L4;
1979 BMW 528i E12 Spark PlugGap 0.028" | 2.8 L6;
1979 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1979 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1978 BMW 320i E21 Spark PlugGap 0.024" | 2.0 L4;
1978 BMW 530i E12 Spark PlugGap 0.024" | 3.0 L6;
1978 BMW 633CSi E24 Spark PlugGap 0.028" | 3.2 L6;
1978 BMW 733i E23 Spark PlugGap 0.028" | 3.2 L6;
1978 BMW 630CSi E24 Spark PlugGap 0.024" | 3.0 L6;
1977 BMW 320i E21 Spark PlugGap 0.024" | 2.0 L4;
1977 BMW 530i E12 Spark PlugGap 0.024" | 3.0 L6;
1977 BMW 630CSi E24 Spark PlugGap 0.024" | 3.0 L6;
1976 BMW 3.0Si E3 Spark PlugGap 0.028" | 3.0 L6;
1976 BMW 530i E12 Spark PlugGap 0.024" | 3.0 L6;
1975 BMW 3.0Si E3 Spark PlugGap 0.028" | 3.0 L6;
1975 BMW 530i E12 Spark PlugGap 0.024" | 3.0 L6;
1974 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1974 BMW 3.0CS U/K Spark PlugGap 0.028" | 3.0 L6;
1974 BMW 3.0CSi U/K Spark PlugGap 0.028" | 3.0 L6;
1974 BMW 3.0S U/K Spark PlugGap 0.028" | 3.0 L6;
1974 BMW Bavaria U/K Spark PlugGap 0.024" | 3.0 L6;
1973 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1973 BMW 3.0CS U/K Spark PlugGap 0.028" | 3.0 L6;
1973 BMW 3.0CSi U/K Spark PlugGap 0.028" | 3.0 L6;
1973 BMW 3.0S U/K Spark PlugGap 0.028" | 3.0 L6;
1973 BMW Bavaria U/K Spark PlugGap 0.024" | 3.0 L6;
1972 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1972 BMW 3.0CS U/K Spark PlugGap 0.028" | 3.0 L6;
1972 BMW 3.0CSi U/K Spark PlugGap 0.028" | 3.0 L6;
1972 BMW 3.0S U/K Spark PlugGap 0.028" | 3.0 L6;
1972 BMW Bavaria U/K Spark PlugGap 0.024" | 3.0 L6;
1971 BMW 2.8 Bavaria U/K Spark PlugGap 0.024" | 2.8 L6;
1971 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1971 BMW 3.0CS U/K Spark PlugGap 0.028" | 3.0 L6;
1971 BMW 3.0CSi U/K Spark PlugGap 0.028" | 3.0 L6;
1971 BMW 3.0S U/K Spark PlugGap 0.028" | 3.0 L6;
1971 BMW 3.0Si U/K Spark PlugGap 0.028" | 3.0 L6;
1971 BMW 3.0CSL U/K Spark PlugGap 0.028" | 3.0 L6;
1971 BMW 2500 U/K Spark PlugGap 0.024" | 2.5 L6;
1970 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1970 BMW 2500 U/K Spark PlugGap 0.024" | 2.5 L6;
1969 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1969 BMW 2500 U/K Spark PlugGap 0.024" | 2.5 L6;
1968 BMW 2800 U/K Spark PlugGap 0.024" | 2.8 L6;
1968 BMW 2500 U/K Spark PlugGap 0.024" | 2.5 L6;

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