Best Bosch Double Iridium Spark Plugs For Improved Engine Performance
Why Bosch Double Iridium Spark Plugs Is Necessary?
Best bosch double iridium spark plugs are necessary to ensure peak performance and prevent potential engine damage. They also enable your car to start faster and run more smoothly. This type of spark plug provides an intense spark that helps to vaporize fuel more efficiently. As a result, your car will produce fewer emissions and get better gas mileage.
Our Top Picks For Best Bosch Double Iridium Spark Plugs
Best Bosch Double Iridium Spark Plugs Guidance

Bosch Automotive’s OE Fine Wire Double Iridium Spark Plug is a top-of-the-line product that offers superior performance and durability. Featuring a double iridium firing pin and ground electrode, this spark plug provides four times the service life of a standard copper plug. Additionally, the 06mm fine wire firing pin ensures superior ignitability and performance. Finally, the 360° continuous laser weld fuses the corrosion resistant iridium firing pin to the base for increased durability.
Common Questions on Bosch Automotive (9603) OE Fine Wire Double Iridium Spark Plug – Single
• What is the function of a spark plug?A spark plug is an engine component that ignites the fuel in the combustion chamber by providing a spark.
• What are the benefits of using an iridium spark plug?
Iridium spark plugs offer better performance than standard spark plugs due to their higher durability and longer life span. Additionally, they provide better fuel efficiency and lower emissions.
• How often should I change my spark plugs?
Spark plugs typically need to be changed every 30,000 miles or so. However, it is always best to consult your owner’s manual or a qualified mechanic to get an accurate estimate for your specific vehicle.
• What are the symptoms of a bad spark plug?
A few common symptoms of a bad spark plug include poor engine performance, decreased fuel economy, and engine misfires.
Why We Like This
• 1) 4X longer service life compared to standard copper plugs• 2) 360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability• 3) 06mm fine wire firing pin provides superior ignitability and performance• 4) Double Iridium firing pin and ground electrode inlay provide superior ignitability and performance• 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.
Additional Product Information
Height | 9 Inches |
Length | 4 Inches |
Weight | 0.05 Pounds |

Bosch Automotive’s OE Fine Wire Double Iridium Spark Plug is a high-performance replacement for your vehicle’s original spark plug. Featuring double iridium electrodes – an iridium firing pin and iridium ground electrode inlay – this spark plug offers better performance than your vehicle’s original. Additionally, the OE-matched spark position is compatible with Gasoline Direct Injection (GDI) technology, while the nickel-plated rolled threads provide superior resistance to corrosion. This spark plug also comes pre-gapped at the factory and does not require a gap adjustment prior to installation.
Common Questions on Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug – Single
• What is the Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug?The Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug is a high-performance spark plug that offers better ignitability, fuel economy, and durability than standard spark plugs.
• What are the benefits of using the Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug?
The Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug offers several benefits over standard spark plugs, including better ignitability, fuel economy, and durability.
• How does the Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug compare to other spark plugs on the market?
The Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug offers better ignitability, fuel economy, and durability than standard spark plugs. In addition, it is designed specifically for use with OE engines, making it a perfect choice for those looking for a high-performance replacement for their original spark plugs.
• What makes the Bosch Automotive (9609) O
Why We Like This
• • Double iridium electrodes for superior performance• OE matched spark position for compatibility with GDI technology• Nickel plated rolled threads for superior resistance to corrosion• Bosch Double Iridium spark plugs are pre gapped at the factory• Meets or exceeds manufacturer design requirements for modern gasoline engines
Additional Product Information
Height | 1.1 Inches |
Length | 4.1 Inches |

Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug – Single. Fit Type: Universal Fit. 06mm fine wire firing pin provides superior ignitability and performance. 360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability. 7 year performance satisfaction.
The Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug is a top quality product that is designed to provide superior ignitability and performance. The 06mm fine wire firing pin provides superior ignitability and performance, while the 360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability. The 7 year performance satisfaction guarantee makes this product an excellent choice for anyone looking for a top quality spark plug.
Common Questions on Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug – Single
• What is the part number for the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug?The part number is 9613.
• What is the price of the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug?
The price is $12.99.
• What is the function of the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug?
The function of the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug is to provide a spark to the engine to ignite the fuel.
• What are the benefits of the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug?
The benefits of the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug are that it is made with double iridium for better durability and performance, and it has a fine wire tip for better ignition.
• How do I install the Bosch Automotive (9613) OE Fine Wire Double Iridium Spark Plug?
Installation instructions can be found here: https://
Why We Like This
• 1. 06mm fine wire firing pin• 2. 360 Degree continuous laser weld• 3. Corrosion resistant iridium firing pin• 4. Increased durability• 5. 7 year performance satisfaction
Additional Product Information
Height | 1.06 Inches |
Length | 0.94 Inches |
Weight | 0.11 Pounds |

Bosch Automotive (9619) OE Fine Wire Double Iridium Spark Plug – Single
If you’re looking for a top of the line OE double iridium spark plug, Bosch Automotive’s 9619 is the way to go. Featuring a double iridium firing pin and ground electrode inlay for 4X longer service life than standard copper plugs, as well as a 360 degree continuous laser weld for increased durability, this spark plug is built to last. Plus, with a torque spec of 11-18 pounds per square foot for cast iron and 11-15 pounds per square foot for aluminum, it’s easy to get a perfect fit. Finally, with a 7 year performance satisfaction guarantee, you can be sure that this spark plug will keep your car running like new.
Common Questions on Bosch Automotive (9619) OE Fine Wire Double Iridium Spark Plug – Single
• What are the benefits of Bosch OE Fine Wire Double Iridium Spark Plugs?Bosch OE Fine Wire Double Iridium Spark Plugs offer superior ignitability and long service life. Featuring an iridium-enhanced 0.6mm fine wire electrode, they provide better ignition performance with less voltage than conventional plugs. Additionally, their double silver coating helps prevent corrosion and their rolled threads reduce the chance of cross-threading.
Why We Like This
• 1. Double Iridium firing pin and ground electrode inlay for 4X longer service life• 2. 06mm fine wire firing pin for superior ignitability and performance• 3. 360 Degree continuous laser weld for increased durability• 4. Torque Specs Cast Iron 11 18 Pounds ft Aluminum 11 15 lb feet• 5. 7 year performance satisfaction
Additional Product Information
Height | 1 Inches |
Length | 5 Inches |
Weight | 0.05 Pounds |

This product is a must-have for anyone looking to get the most out of their car. The Bosch Automotive (9614) OE Fine Wire Double Iridium Spark Plug is a top-of-the-line product that provides optimum fit, form, and function. This spark plug is pre-gapped and ready to install, and its double iridium firing pin and ground electrode inlay provide four times the service life of standard copper plugs. Additionally, the 06mm fine wire firing pin delivers superior ignitability and performance, while the 360-degree continuous laser weld fuses the corrosion-resistant iridium firing pin to the base for increased durability. With a 7-year performance satisfaction guarantee, this is a top-quality spark plug that is sure to keep your car running smoothly for years to come.
Common Questions on Bosch Automotive (9614) OE Fine Wire Double Iridium Spark Plug – Pack of 4
• What is the part number for the Bosch Automotive OE Fine Wire Double Iridium Spark Plug?The part number is 9614.
• What is the price of the Bosch Automotive OE Fine Wire Double Iridium Spark Plug?
The price is $13.49.
• What is the spark plug gap for the Bosch Automotive OE Fine Wire Double Iridium Spark Plug?
The spark plug gap is .044.
• How many spark plugs are in a pack?
There are 4 spark plugs in a pack.
Why We Like This
• 1. 4X longer service life compared to standard copper plugs• 2. 06mm fine wire firing pin provides superior ignitability and performance• 3. 360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability• 4. 7 year performance satisfaction• 5. Original equipment, pre gapped replacement delivering optimum fit, form and function
Additional Product Information
Color | Double Iridium |
Weight | 0.4343 Pounds |
Benefits of Bosch Double Iridium Spark Plugs
If you are looking for an upgrade to your conventional spark plugs, best bosch double iridium spark plugs are a great option. These types of spark plugs offer better performance and fuel economy due to their enhanced design. best bosch double iridium spark plugs have a longer lifespan than conventional plugs, meaning they will need to be replaced less often. They also create less emissions and provide peppier acceleration.
Buying Guide for Best Bosch Double Iridium Spark Plugs
Bosch Double Iridium Spark Plugs are the best spark plugs on the market. They offer superior performance and durability over other brands of spark plugs. When it comes to choosing the right spark plug for your vehicle, Bosch is the clear choice.
Here are some things to look for when shopping for Bosch Double Iridium Spark Plugs:
-Make sure the spark plugs you choose are the correct size for your vehicle. Bosch makes a variety of sizes to fit most vehicles on the road.
-Choose a set that includes a gap tool. This will make it easier to adjust the gap on your plugs, ensuring optimal performance.
– Consider purchasing a set that come pre-gapped from the factory. This will save you time and ensure that your plugs are correctly gapped out of the box.
Frequently Asked Question
What are the best bosch double iridium spark plugs?
Some of the best bosch double iridium spark plugs on the market include the Bosch 4417, the Bosch 9603, and the Bosch 9652.
Why are they the best?
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What are the benefits of using them?
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How do they compare to other spark plugs?
There is no definitive answer to this question as it depends on the make and model of the vehicle, as well as the specific spark plugs that are being compared. In general, however, iridium spark plugs tend to offer better performance and longevity than standard spark plugs, and are often worth the higher price tag.
Why should I use them in my vehicle?
There are many reasons why you should use synthetic oils in your vehicle. Synthetic oils are designed to last longer and perform better in extreme temperatures than traditional oils. They can also help improve fuel economy and protect your engine from wear and tear.
Conclusion
Convincing a buyer to purchase a product can be difficult, however, if the product is Bosch Double Iridium Spark Plugs, it may not be as difficult as one might think. The reason being is that Bosch is one of the most trusted and reliable brands when it comes to spark plugs. Additionally, their double iridium bits allow for better firing, longer lasting service life, and higher ignitability. Ultimately, this means that motorists can feel confident in knowing they are receiving a quality product that will not only work well but also last long.
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