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Technical

12mm Diameter

12mm Diameter spark plugs from trusted brands such as Champion, Denso, Bosch and NGK.

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Outerthread
  1. 14.0 mm (2)
  2. 12.0 mm (3)
SparkPosition
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  2. 3 mm (1)
Reach
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  2. 12.7mm (1/2") (51)
  3. 19mm (3/4") (162)
  4. 24.2mm (1)
  5. 25.4mm (1") (4)
  6. 26.5mm (1.04") (33)
  7. 28.5mm (1.12") (1)
Manufacturer
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  6. Denso (62)
  7. KLG (7)
  8. Lodge (9)
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  10. NGK (139)
Diameter
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  2. 12mm (336)
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Hex Spanner Size
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  2. 14mm (9/16") (20)
  3. 16mm (5/8") (107)
  4. 18mm (11/16") (106)
  5. 19mm (3/4") (19)
  6. 20.8mm (13/16") (2)
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Projection Type
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Tip Configuration
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Applications
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  2. Powersport (1)
  3. Racing (23)
About GSP
Green Spark Plug

Green Spark Plug Co. Ltd has now added a dedicated sales and distribution team to handle customers questions and pre-sales enquires, we are experts in our field so if you have a query let us know!

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Middlewich
Cheshire
CW10 9LF

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