Best Bosch Car Spark Plugs of 2025

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 11 Feb 2025

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Car spark plugs are an essential component of any vehicle's ignition system, providing the necessary spark to ignite the fuel in the engine. Bosch is a well-known brand that offers a range of high-quality car spark plugs for various makes and models. Their spark plugs are manufactured to meet or exceed original equipment specifications, ensuring reliable engine performance and fuel efficiency. With a focus on innovation and advanced technology, Bosch spark plugs are designed to provide optimal combustion, reduce emissions, and extend the life of the engine. Whether you're a professional mechanic or a DIY enthusiast, Bosch spark plugs are a reliable and trusted choice for your vehicle.

At a Glance: Our Top Picks

Bosch HR7MEV Spark Plugs Set of 4 Cover #TOP 1
Bosch HR7MEV Spark Plugs Set of 4
ftb score rating icon 9.8
Bosch Super 4 Spark Plug Set of 4 Cover #TOP 2
Bosch Super 4 Spark Plug Set of 4
ftb score rating icon 9.7
Bosch N40 Spark Plug Set of 4 Cover #TOP 3
Bosch N40 Spark Plug Set of 4
ftb score rating icon 9.5

Top 10 Bosch Car Spark Plugs

Bosch HR7MEV Spark Plugs Set of 4

0242236866
Bosch HR7MEV Spark Plugs Set of 4 Cover
Bosch HR7MEV (N44) - Spark Plugs Nickel - Set of 4

The Bosch HR7MEV Spark Plugs provide an easy replacement option with a factory-pre-set electrode gap, so you won't need to make adjustments. Their high reliability ensures excellent cold start behaviour, giving you confidence during those chilly mornings. With high wear resistance from a special ceramic material, these plugs are robust and built to last. Additionally, they support optimum engine performance, promoting smooth operation and steady acceleration, making your driving experience more enjoyable.

What We Like
Easy to replace
Excellent cold start behaviour
High wear resistance
Optimum engine performance
Corrosion protection
#TOP 2

Bosch Super 4 Spark Plug Set of 4

0242232802
Bosch Super 4 Spark Plug Set of 4 Cover
Bosch Super 4 0242232802 (N50), Spark Plug Set of 4 - for a Reliable Gasoline Engine Start and Long Service - with Robust Design

The Bosch Super 4 Spark Plugs are designed to provide reliable performance for your gasoline engine. With over 120 years of ignition expertise, these spark plugs ensure original equipment quality, making them trusted by many manufacturers. Their compatibility is easily verified using the parts search function, ensuring you get the right fit for your vehicle. Additionally, they feature advanced surface air-gap technology which protects against carbon fouling, enhancing the longevity of your engine's performance.

What We Like
Original equipment quality
Easy compatibility check
Protection against carbon fouling
Pre-set electrode gap
Simple replacement process
#TOP 3

Bosch N40 Spark Plug Set of 4

0 242 230 806
Bosch N40 Spark Plug Set of 4 Cover
Bosch 0242230806 (N40), Spark Plug Set of 4 - for a Reliable Gasoline Engine Start and Long Service Life - with Robust Design

The Bosch N40 Spark Plugs are designed to ensure a reliable start for your gasoline engine and provide a long service life. With over 120 years of ignition expertise, these spark plugs offer original equipment quality that you can trust. They are compatible with various vehicles, allowing you to find the right fit easily. Featuring nickel alloy and copper core, the plugs ensure steady acceleration and efficient engine operation, helping your vehicle run smoothly.

What We Like
Reliable ignition performance
Easy to install
Long-lasting durability
Compatible with various vehicles
#TOP 4

Bosch ZR7SI332S Double Iridium Spark Plug

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

The Bosch ZR7SI332S Spark Plug is a premium component designed for exceptional performance. It features first-class spark plug technology tailored to meet your engine's specific needs, ensuring efficient operation. The plugs come with a factory-pre-set electrode gap, making replacement straightforward without the need for adjustments. With excellent wear resistance from a precious metal alloy at the electrodes, you can enjoy extended durability and reliability in your vehicle's performance.

What We Like
Easy to replace
High wear resistance
Robust construction
Corrosion protection
#TOP 5

Bosch ZQR8SI302 Iridium Spark Plugs - Pack of 4

ZQR8SI302
Double Iridium
1 Count (Pack of 4)
Bosch ZQR8SI302 Iridium Spark Plugs - Pack of 4 Cover
Bosch ZQR8SI302 - Spark Plugs Iridium - 1 piece (Pack of 4)

The Bosch ZQR8SI302 Spark Plugs offer premium quality, made in Europe by a leading automotive supplier. Their first-class spark plug technology ensures they meet the specific requirements of your engine, providing reliable performance. With a factory-pre-set electrode gap, you can easily replace these plugs without needing to make adjustments, saving you time and effort. Additionally, their high wear resistance, thanks to the precious metal alloy at the centre electrode, means you can count on their durability for long-lasting use.

What We Like
High-quality European manufacturing
Easy to replace, no adjustments
Durable precious metal alloy
Engine-specific design
#TOP 6

Bosch VR8SC+ Spark Plugs Set of 4

0242129800
Bosch VR8SC+ Spark Plugs Set of 4 Cover
Bosch VR8SC+ (N34) - Spark Plugs Nickel - Set of 4

The Bosch VR8SC+ Spark Plugs offer an easy replacement process with a factory-pre-set electrode gap, ensuring no adjustments are necessary for installation. You will appreciate their high reliability, particularly during cold starts, which can enhance your vehicle's performance. The plugs are crafted from a special ceramic material that provides excellent wear resistance, making them robust and long-lasting. Additionally, they support smooth engine operation, ensuring steady acceleration for a more enjoyable driving experience.

What We Like
Easy to replace
Excellent cold start performance
High wear resistance
Supports smooth engine operation
#TOP 7

Bosch HR8MCV Spark Plugs Set of 4

0 242 229 902
Bosch HR8MCV Spark Plugs Set of 4 Cover
Bosch HR8MCV (+39) - Spark Plugs Nickel - Set of 4

The Bosch HR8MCV Spark Plugs offer a hassle-free replacement experience, thanks to their factory-pre-set electrode gap that requires no adjustments. You'll enjoy excellent cold start behaviour, ensuring your engine starts smoothly every time. Additionally, these spark plugs are made from a special ceramic material known for its high wear resistance and robustness, adding longevity to your engine’s performance. With these plugs, you can expect smooth operation and steady acceleration, enhancing your driving experience significantly.

What We Like
Easy replacement process
Reliable cold start performance
High wear resistance
Smooth engine operation
Corrosion protection
#TOP 8

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 9

Bosch FR7HC Spark Plug with Nickel Coating

FR7HC+
Bosch FR7HC Spark Plug with Nickel Coating Cover
Bosch FR7HC - Spark Plugs Nickel - 1 piece

The Bosch FR7HC Spark Plug offers easy replacement with a factory-pre-set electrode gap, eliminating the need for adjustments. This feature ensures a hassle-free installation process for you. Its high reliability guarantees excellent cold start behaviour, making your vehicle more dependable in chilly conditions. Additionally, the spark plug boasts high wear resistance, thanks to its special ceramic material that provides both dielectric and mechanical strength. This durability supports optimum engine performance, allowing your engine to operate smoothly and accelerate steadily.

What We Like
Easy to replace
Excellent cold start
High wear resistance
Supports smooth engine operation
#TOP 10

Bosch WR7DC Nickel Spark Plug - 1 Piece

7900_1
Bosch WR7DC Nickel Spark Plug - 1 Piece Cover
Bosch WR7DC - Spark Plugs Nickel - 1 piece

The Bosch WR7DC Spark Plug is designed for easy replacement, featuring a factory-pre-set electrode gap that eliminates the need for adjustments. You will appreciate its high reliability, which ensures excellent cold start behaviour. The spark plug's wear resistance, attributed to its special ceramic material, provides robustness and longevity. Moreover, it supports optimum engine performance, giving you smooth operation and steady acceleration for an enhanced driving experience.

What We Like
Easy to replace
Excellent cold start behaviour
High wear resistance
Supports smooth engine operation
Buying Guide Image
Editor's Notes

During our Bosch car spark plug research, we found 306 Bosch car spark plug products and shortlisted 10 quality products. We collected and analyzed 36,397 customer reviews through our big data system to write the Bosch car spark plugs list. We found that most customers choose Bosch car spark plugs with an average price of £16.35.

The Bosch car spark plugs are available for purchase. The top 10 picks range in price from a low of £2.00 to a high of £33.00, find the one that fits your budget.

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.