Call +44(0) 1477 532 317
Technical

12mm Diameter

Items 1 to 12 of 390 total

per page

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Items 1 to 12 of 390 total

per page

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

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

To find the right spark plug for your vehicle try our Spark Plug Finder

Shop By

Shopping Options

Reach
  1. 11.2mm (7/16") (8)
  2. 12.7mm (1/2") (51)
  3. 19mm (3/4") (164)
  4. 24.2mm (1)
  5. 25.4mm (1") (4)
  6. 25mm (0.98") (1)
  7. 26.5mm (1.04") (44)
  8. 28.5mm (1.12") (1)
HexSize
  1. 16 mm (5/8") (3)
  2. 14 mm (9/16") (5)
Manufacturer
  1. AC (8)
  2. Beru (11)
  3. Bosch (49)
  4. Brisk (3)
  5. Champion (76)
  6. Denso (54)
  7. KLG (7)
  8. Lodge (9)
  9. Motorcraft (8)
  10. NGK (161)
Diameter
  1. 10mm (3)
  2. 12 mm (7)
  3. 12mm (338)
  4. 14mm (13)
Hex Spanner Size
  1. 14 mm (9/16") (6)
  2. 14.0 BiHex (3)
  3. 14mm (9/16") (21)
  4. 16 mm (5/8") (3)
  5. 16mm (5/8") (116)
  6. 18mm (11/16") (108)
  7. 19mm (3/4") (16)
  8. 20.8mm (13/16") (2)
Terminal Type
  1. Fixed Terminal (74)
  2. M4 Thread (176)
  3. UNC Thread (2)
Resistor
  1. No (110)
  2. Yes (131)
Seal Type
  1. Gasket Seat (204)
  2. Stainless gasket (1)
  3. Standard gasket (2)
Projection Type
  1. Non Projected (138)
  2. Projected (67)
Electrode Material
  1. Copper (1)
  2. Copper Core (48)
  3. Gold Palladium (18)
  4. Iridium (50)
  5. Iridium Power (11)
  6. Iridium Racing (4)
  7. Platinum (23)
  8. Racing (1)
  9. Silver (3)
  10. Standard Nickel (139)
  11. Twin Tip (2)
Tip Configuration
  1. Single Electrode (216)
  2. Surface Gap (2)
  3. Twin Electrode (5)
Applications
  1. Modelling (1)
  2. Powersport (1)
  3. Racing (25)
NGK Part Finder
Show all vehicles
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!

Read More About Us
Categories
Our 3 Customer Promises
1

Fast Delivery - Products in stock for same day dispatch. Cut off 1pm GMT. (Supply permitting)
* Applies to UK Mainland only

2

Est 1980 - Over one million spark plugs sold. Call us for technical advice
+44 (0) 1477 532 317

3

Shop With Confidence - Guaranteed low prices. 30 day no hassle returns.

Company Info

Call Us +44 (0) 1477 532 317
(9-5 Mon-Fri) GMT

Unit 2
King Street Trading Estate
Middlewich
Cheshire
CW10 9LF

[email protected]
[email protected]

Contact Form