Get sustained performance and longevity with Bosch Iridium, Nickel and Platinum Spark Plugs designed for Cars and Bikes
✓ Smooth engine operation with nickel/copper electrodes ✓ Nickel-plated housing resists corrosion ✓ Factory pre-set gap
Reliable 2-Wheeler spark plug ensuring smooth engine operation and steady acceleration.
Features & Benefits:
✓ Superior combustion with platinum/yttrium electrodes ✓ Long service life ✓ Heat-shrink assembly & ribbed insulator
Advanced 2-Wheeler spark plug for superior combustion and extended service life.
✓ Durable iridium electrodes for reliable starts ✓ Factory pre-set gap ✓ OEM-quality performance
Durable 2-Wheeler spark plug with iridium electrodes for consistent performance and reliable starts.
✓ Premium combustion with fine wire iridium ✓ Large copper core ✓ Ribbed insulator prevents misfires
Premium 2-Wheeler spark plug for high-performance engines, superior combustion, and extended life.
✓ OE replacement ✓ Nickel/Ni-Yttrium electrodes ✓ Reliable quick starts ✓ 1× service life
Reliable passenger car OE replacement spark plug.
✓ 2-4 ground electrodes ✓ Improved fuel efficiency ✓ Self-cleaning surface-gap technology
High-end PC spark plug for older engines with optimized combustion.
✓ Iridium center, platinum ground ✓ Enhanced ignitability ✓ 2× service life ✓ Pin-to-pin reduces quenching
Passenger Car spark plug with iridium-enhanced electrodes for superior ignitability and performance.
✓ Platinum alloy electrodes ✓ Longest service life ✓ 3× durability ✓ Robust electrode retention
Premium OE replacement spark plug for maximum durability and performance.
✓ Iridium alloy for enhanced ignitability ✓ High wear resistance ✓ 3× service life ✓ Pin-to-pin technology
High-performance OE replacement spark plug with advanced iridium technology.
✓ Extreme engine condition performance ✓ High-voltage & corrosion resistant ✓ Iridium/Platinum electrodes
Premium passenger car spark plug for extreme engine conditions.
Every Bosch spark plug tells a story written in precision. Its unique code is a powerful combination of letters and numbers that defines everything from fitment and heat performance to electrode design and materialsEach character reveals a specific engineering detail. Together, they ensure the perfect spark for your engine.
Terminal stud
Insulator
Resistor
Spanner size
Sealing seat
Thread
Center electrode
Ground electrode
Extreme knocking events (mega knocking) in turbocharged engines with direct fuel injection can cause damage to the spark plug and engine. EVO spark plugs from Bosch are designed to be particularly robust for use in such engines.
Each spark plug is made for a specific area of application:
The welding process developed by Bosch with a
ensures a particularly reliable and durable connection between the metals at the electrodes.
In hybrid engines, spark plugs are exposed to significantly cooler temperatures, which can lead to increased sooting and ignition problems. This is not a problem for Bosch spark plugs, as they have to undergo cold start tests that simulate such temperature behavior.
Bosch produces the ceramic granulate itself according to its own recipe. This ensures high mechanical and electrical resistance of the insulator.
A grinding wheel gives the soft ceramic insulators their characteristic outer shape.
After the burning process, the spark plugs are tested to ensure that the given specifications have been met. If the insulator is free of defects, the voltage flashes glide across the surface from top to bottom without penetrating the insulator.
The ceramic insulator is given its inscription, the typical Bosch color rings and a protective glaze.
This glaze prevents dirt adhesion and thus reduces the risk of leakage currents.
In modern spark plugs, a precious metal alloy, usually platinum or iridium, is applied to the center electrode and, where applicable, also to the ground electrode using special welding processes. This increases the wear resistance of the electrodes.
The terminal stud is pressed into the ceramic insulator at 800 °C, while a liquid glass sealant ensures a stable connection between the two components. This ensures that the spark plug remains gas-tight throughout its entire service life.
The ground electrode is bent precisely to the required gap to the center electrode and checked using a camera system. Readjustment by the workshop is not necessary – this saves time during installation.
Tip: Replace every 30,000-50,000 km or per service manual.
Tip: Replace every 15,000-20,000 km or per manufacturer schedule.