| Thread Diameter | 14 mm |
|---|---|
| Thread Pitch | 1.25 mm |
| Thread Reach | 18 mm |
| Hex Size | 16 mm |
| Seat Type | Tapered |
| Brisk Heat Range | 12 |
| Center Electrode Material | Silver |
| Aluminum Head Torque | 7.2-14.5 ft/lbs |
| Cast Iron Head Torque | 10.8-18 ft/lbs |
G12S Brisk Racing Silver Spark Plug
Brisk SKU - G12S
Parameters:
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Thread Diameter 14mm
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Thread Reach 18mm-.708"
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Hexagon 16mm-5/8"
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Seat Type Tapered
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Design Silver Racing
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Resistor No
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Projected No
- Heat Range - 12

Brisk Silver Racing Spark Plugs have a smaller diameter silver core and conventional open spark hook type earth electrode give an outstanding performance in igniting high octane fuel mixture associated with alternative fuels like CNG, LPG, Propane, E85 blend, Alcohol, LNG, Race Fuels and Nitro.
Silver metal is the single best material for a spark plugs core electrode, as it can dissipate heat fast, resulting in overall lower spark plug temperature and a more powerful spark.
The stronger the spark the faster and better the flame front and flame speed giving smother higher RPM range in engines.
Our Silver Racing range works well with most aftermarket and OEM ignition systems form simple coil and distributor through electronic ignition and powerful direct ignition systems found on modern port and direct injection performance engines.
Features
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Fires properly even if fouling occurs, common standard plugs failure.
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Silver center electrode, best thermal (heat) & electrical conductor.
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Lower voltage requirement.
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Reduces wear on coil, leads and other ignition parts.
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1.5 mm Silver Wire Centre Electrode
Applications
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Tuned and race engines.
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Alternative fuel cars.
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Old vehicles with weaker ignition systems and/or excessive oil consumption.
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High RPM race engines with short time for ignition coil saturation.
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High octane or hard ignition fuels.
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Methanol, ethanol, CNG, LPG, Propane, E85 blend, Alcohol, LNG, Race Fuels, Nitro, Nitrous.
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Naturally aspirated or forced induction applications
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Standard and high compression engines
Service Life
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30 000 km or 18 000 miles.
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50 hours racing.
Need a spark plugs for your engine but you are unsure of what to get, no problem! Our trained and knowledgeable staff will be able to assist you and find the right product for your application. Please get in touch using one of the options on our 'contact us' page.
BRISK RACING / G12S
BRISK G12S Vehicle Applications
Find your vehicle in the G12S application guide. Filter by manufacturer and model, then compare the complete application details for your vehicle.
| Manufacturer | Model | Model I / series | Model date range | Model II / variant | LTR. | kW (HP) | Engine code | Cylinders | Application date range | TS | Part number | Product code | Application notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RENAULT | Espace | Espace I (J 11..) | 1984 - 1992 | Espace i | 2,0 | 87kW | J7R 760 | 4 | 01.89-12.90 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | Espace | Espace I (J 11..) | 1984 - 1992 | Espace i Quadra | 2,0 | 87-88kW | J7R 760 | 4 | 01.88-12.92 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 5 | R 5 (122..) | 1972 - 1985 | R 5 Alpine Turbo, R 5 Turbo | 1,4 | 79-81kW | 840-726, C6J 750 | 4 | 10.81-01.85 | G12S | 1787 | Source MM: 0,6 | |
| RENAULT | R 21 | R 21 Kombi (K 48..) | 1986 - 1994 | R 21 i Kombi (Nevada) | 2,0 | 85kW | J7R 750, J7R 751 | 4 | 06.86-12.88 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 21 | R 21 Kombi (K 48..) | 1986 - 1994 | R 21 i Kombi (Nevada) | 2,0 | 86kW | J7R 750, J7R 751 | 4 | 07.89-06.92 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 21 | R 21 (L 48..) | 1986 - 1994 | R 21 i | 2,0 | 85-86kW | J7R 750, J7R 751 | 4 | 03.86-06.89 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 21 | R 21 (L 48..) | 1986 - 1994 | R 21 i Turbo, 4x4 | 2,0 | 119kW | J7R 756 | 4 | 02.90-10.92 | G12S | 1787 | ||
| RENAULT | R 21 | R 21 (L 48..) | 1986 - 1994 | R 21 i Turbo, 4x4 | 2,0 | 129kW | J7R 752 | 4 | 04.87-10.93 | G12S | 1787 | Source MM: 0,6 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i | 2,0 | 88kW | J7R 722, J7R 723 | 4 | 03.87-12.93 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i | 2,2 | 79kW | J7T 732, J7T 733 | 4 | 07.86-12.92 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i | 2,2 | 89kW | J7T 706, J7T 707 | 4 | 01.84-12.89 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i | 2,2 | 89kW | J7T 714, J7T 715 | 4 | 01.84-12.89 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i | 2,2 | 91kW | J7T 730, J7T 731 | 4 | 01.84-12.89 | G12S | 1787 | Source MM: 0,9 | |
| RENAULT | R 25 | R 25 (B29..) | 1984 - 1993 | R 25 i Turbo | 2,45 | 133kW | Z7U 702 | 6 | 10.84-05.90 | G12S | 1787 |
No matching applications. Try a different manufacturer or model, or clear the filters.
Date ranges and specifications are shown as supplied. Blank cells indicate that no value was provided. Confirm the engine code and application date range when matching your vehicle.





