Best CNG Car Spark Plugs of 2025

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 11 Feb 2025

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CNG car spark plugs are a type of spark plug specifically designed for cars that run on compressed natural gas (CNG). These spark plugs are engineered to meet the specific needs of CNG engines, which operate at higher compression ratios and require a different type of ignition than traditional petrol engines. With their unique design and materials, these spark plugs can improve engine performance, reduce emissions, and extend the lifespan of the engine. If you own a CNG car, investing in high-quality spark plugs can help you save on maintenance costs and improve your driving experience.

At a Glance: Our Top Picks

Brisk - Silver Racing RR15YS-1 1723 Ignition Spark Plugs LPG CNG Autogas Cover #TOP 1
Brisk - Silver Racing RR15YS-1 1723 Ignition Spark Plugs LPG CNG Autogas
ftb score rating icon 9.9
Brisk Silver ER15YS-9 1578 Spark plugs petrol fuel LPG CNG Autogas Cover #TOP 2
Brisk Silver ER15YS-9 1578 Spark plugs petrol fuel LPG CNG Autogas
ftb score rating icon 9.8
Bosch YR5NI332S - Spark Plugs Double Iridium Cover #TOP 3
Bosch YR5NI332S - Spark Plugs Double Iridium
ftb score rating icon 9.6

Top 10 CNG Car Spark Plugs

Brisk - Silver Racing RR15YS-1 1723 Ignition Spark Plugs LPG CNG Autogas

BRISK
1723
Brisk - Silver Racing RR15YS-1 1723 Ignition Spark Plugs LPG CNG Autogas Cover
Brisk - Silver Racing RR15YS-1 1723 Ignition Spark Plugs LPG CNG Autogas, 4 Pieces

Features
Specifically Balanced Spacing Of Electrodes
Low Operating Costs
Suitable For LPG/CNG And Petrol Engines
Spark-Express, LPG, CNG Partner
LPG, CNG, The Cheapest Alternative
#TOP 2

Brisk Silver ER15YS-9 1578 Spark plugs petrol fuel LPG CNG Autogas

Brisk
1578
Pack of 4
Brisk Silver ER15YS-9 1578 Spark plugs petrol fuel LPG CNG Autogas Cover
Brisk Silver ER15YS-9 1578 Spark plugs petrol fuel LPG CNG Autogas, 4 pieces

Features
Electrode Spacing [mm]: 0.9
Tightening Torque [Nm]: 25
Thread Size: M14x1.25.Fuel Type: LPG(LPGL ; CNG.Number Of Poles: 1. Spanner Width: 16. Spark Plug: Silver Centre Electrode
Thread Length [mm]: 26.5
International Products Have Separate Terms, Are Sold From Abroad And May Differ From Local Products, Including Fit, Age Ratings, And Language Of Product, Labeling Or Instructions.
#TOP 3

Bosch YR5NI332S - Spark Plugs Double Iridium

YR5NI332S_1
Bosch YR5NI332S - Spark Plugs Double Iridium Cover
Bosch YR5NI332S - Spark Plugs Double Iridium - 1 piece

Features
First-Class Spark Plug Technology: Based On Original Equipment And Engineered To The Specific Requirements Of The Engine
Bosch Premium Spark Plug: Manufactured In Europe From One Of The Leading Global Automotive Suppliers
Plugs Easy To Replace: Factory-Pre-Set Electrode Gap, No Adjustment Necessary; Bosch Advices Not To Lubricate The Thread, Requested Tightening Torque Or Angle See On Package
Please Use The Vehicle Identification To Confirm Compatibility With Your Vehicle, All Restrictions Must Be Observed
Please Note That The Specified OE Reference Numbers Do Not Constitute An Exhaustive List, Use The Parts Search Tools At The Top Of This Page To Find Out The Correct Spark Plug For Your Vehicle
High Durability: Service Life According To Vehicle Manufacturers Requirement
High Robustness: Special Ceramic Material With High Dielectric And Mechanical Strength; High Gas Tightness Due To Hot Shrink Assembly
Excellent Wear Resistance: Precious Metal Alloy At Center And Ground Electrode
Corrosion Protection: Outstanding Engine Protection Due To Anti-Seize Nickel-Plated Housing And Thread
#TOP 4

Bosch ZR7SI332S - Spark Plugs Double Iridium

9710_1
Double Iridium
ZR7SI332S
Bosch ZR7SI332S - Spark Plugs Double Iridium Cover
Bosch ZR7SI332S - Spark Plugs Double Iridium - 1 piece

Features
First-Class Spark Plug Technology: Based On Original Equipment And Engineered To The Specific Requirements Of The Engine
Bosch Premium Spark Plug: Manufactured In Europe From One Of The Leading Global Automotive Suppliers
Plugs Easy To Replace: Factory-Pre-Set Electrode Gap, No Adjustment Necessary; Bosch Advices Not To Lubricate The Thread, Requested Tightening Torque Or Angle See On Package
Please Use The Vehicle Identification To Confirm Compatibility With Your Vehicle, All Restrictions Must Be Observed
Please Note That The Specified OE Reference Numbers Do Not Constitute An Exhaustive List, Use The Parts Search Tools At The Top Of This Page To Find Out The Correct Spark Plug For Your Vehicle
High Durability: Service Life According To Vehicle Manufacturers Requirement
High Robustness: Special Ceramic Material With High Dielectric And Mechanical Strength; High Gas Tightness Due To Hot Shrink Assembly
Excellent Wear Resistance: Precious Metal Alloy At Center And Ground Electrode
Corrosion Protection: Outstanding Engine Protection Due To Anti-Seize Nickel-Plated Housing And Thread
#TOP 5

Bosch HR7NII332W - Spark Plugs Double Iridium

0 242 236 663
Bosch HR7NII332W - Spark Plugs Double Iridium Cover
Bosch HR7NII332W - Spark Plugs Double Iridium - 1 piece

Features
First-Class Spark Plug Technology: Based On Original Equipment And Engineered To The Specific Requirements Of The Engine
Bosch Premium Spark Plug: Manufactured In Europe From One Of The Leading Global Automotive Suppliers
Plugs Easy To Replace: Factory-Pre-Set Electrode Gap, No Adjustment Necessary; Bosch Advices Not To Lubricate The Thread, Requested Tightening Torque Or Angle See On Package
Please Use The Vehicle Identification To Confirm Compatibility With Your Vehicle, All Restrictions Must Be Observed
Please Note That The Specified OE Reference Numbers Do Not Constitute An Exhaustive List, Use The Parts Search Tools At The Top Of This Page To Find Out The Correct Spark Plug For Your Vehicle
High Durability: Service Life According To Vehicle Manufacturers Requirement
High Robustness: Special Ceramic Material With High Dielectric And Mechanical Strength; High Gas Tightness Due To Hot Shrink Assembly
Excellent Wear Resistance: Precious Metal Alloy At Center And Ground Electrode
Corrosion Protection: Outstanding Engine Protection Due To Anti-Seize Nickel-Plated Housing And Thread
#TOP 6

NGK BKR7EIX-11 Iridium IX Spark Plug

NGK
6988
One Size
NGK BKR7EIX-11 Iridium IX Spark Plug Cover
NGK (6988) BKR7EIX-11 Iridium IX Spark Plug, Pack of 1

Features
Spanner Size: 16 Mm
Outer Thread [mm]: 14,0
Thread Length [mm]: 19
Spark Position [mm]: 3,5
Spark Plug: 1 - Earthed Electrode; Fixed SAE Connector; Interference Suppression 5 kOhm; Iridium Middle Electrode; With Gasket Seat

Bosch FR6HI332 Double Iridium Spark Plug

0 242 240 665
Bosch FR6HI332 Double Iridium Spark Plug Cover
Bosch FR6HI332 - Spark Plugs Double Iridium - 1 piece

The Bosch FR6HI332 Spark Plug is a premium choice for your vehicle, manufactured in Europe by a leading automotive supplier. Its first-class spark plug technology is specifically engineered to meet your engine's requirements, ensuring optimal performance. You will appreciate the ease of replacing these plugs, as they come with a factory-pre-set electrode gap, eliminating the need for adjustments. Additionally, the excellent wear resistance provided by the precious metal alloy enhances their durability, giving you confidence in your vehicle's efficiency.

What We Like
Manufactured in Europe
Easy to replace
Excellent wear resistance
High robustness
#TOP 8

Bosch ZQR8SI302 Iridium Spark Plug

ZQR8SI302_1
Double Iridium
1 Count (Pack of 1)
Bosch ZQR8SI302 Iridium Spark Plug Cover
Bosch ZQR8SI302 - Spark Plugs Iridium - 1 piece

The Bosch Iridium Spark Plug offers exceptional performance and reliability for your vehicle. It features first-class spark plug technology, ensuring it meets the specific requirements of your engine. With a factory-pre-set electrode gap, you can easily replace the plug without any adjustments. The high wear resistance, thanks to the precious metal alloy at the centre electrode, extends the life of the plug. Additionally, the robust ceramic material ensures durability and high gas tightness, providing peace of mind while driving.

What We Like
Premium quality manufacturing
Easy installation process
High wear resistance
Durable ceramic material
#TOP 9

Brisk 1462 DR15YS-9 Silver Racing Spark Plug

BRISK
1462
4 Units
Brisk 1462 DR15YS-9 Silver Racing Spark Plug Cover
Brisk 1462 DR15YS-9 Silver Racing Spark Plug

Features
Reduces Wear On Coil, Leads And Other Ignition Parts
Lower Voltage Requirement
Thread Diameter: 14mm
Spanner Size: 16mm
1.5 Mm Silver Wire Centre Electrode
#TOP 10

Bosch WR78 - Spark Plugs Super 4

0242232803
Bosch WR78 - Spark Plugs Super 4 Cover
Bosch WR78 (N53) - Spark Plugs Super 4 - Set of 4

Features
High Reliability: Outstanding Protection Against Carbon Fouling Due To Surface Air-Gap Technology
Plugs Easy To Replace: Factory-Pre-Set Electrode Gap, No Adjustment Necessary; Bosch Advices Not To Lubricate The Thread, Requested Tightening Torque Or Angle See On Package
Supports An Optimum Engine Performance: Smooth Engine Operation And Steady Acceleration
Please Use The Vehicle Identification To Confirm Compatibility With Your Vehicle, All Restrictions Must Be Observed
High Wear Resistance And Robustness: Special Ceramic Material With High Dielectric And Mechanical Strength
Corrosion Protection: Outstanding Engine Protection Due To Anti-Seize Nickel-Plated Housing And Thread
Buying Guide Image
Editor's Notes

During our cng car spark plug research, we found 284 cng car spark plug products and shortlisted 10 quality products. We collected and analyzed 10,118 customer reviews through our big data system to write the cng car spark plugs list. We found that most customers choose cng car spark plugs with an average price of £10.62.

The cng car spark plugs are available for purchase. We have researched hundreds of brands and picked the top brands of cng car spark plugs, including BRISK, Bosch, Bosch Automotive, NGK. The seller of top 1 product has received honest feedback from 28,148 consumers with an average rating of 4.2.

Written by
Joseph Prokop Avatar

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.