Spark Plug Bosch Iridium - BMW N52 | 12122158253-BOS

2X longer service life compared to standard copper plugs

Bosch Platinum Spark Plugs are the newest member of our OE fine wire spark plug family. From the brand trusted in the world’s most advanced engines, Bosch Platinum Spark Plugs are engineered to provide you with improved ignitability and performance.

Features and Benefits:

• OE design for optimum fit and function
• Fine wire design delivers improved ignitability and performance life
• Center electrode is an ultra fine wire design.
• Copper core provides broader heat range to resist pre-ignition
• Tapered shape ground electrode reduces flame shrouding for improved combustion
• Yttrium enhanced to resist wear
• Nickel-plated shell with rolled threads
• Ribbed insulator design

Warranty Information: 4-year performance satisfaction guarantee

Robert Bosch LLC guarantees your satisfaction or the improved performance in your vehicle when you use Bosch Platinum Spark Plugs. If you are not satisfied or do not experience quicker starts, smoother acceleration and improved fuel efficiency, return the plugs with your dated sales receipt and Bosch will refund the purchase price of the spark plugs.

Bosch GMBH
Bosch is one of the largest global suppliers of automotive products, developing, manufacturing and supplying precision OE components and systems to vehicle manufacturers and the automotive aftermarket.



OE Part #'s


12-12-2-158-253 / 12 12 2 158 253 / 12122158253

12-12-0-032-137 / 12 12 0 032 137 / 12120032137

12-12-0-032-138 / 12 12 0 032 138 / 12120032138

12-12-0-035-915 / 12 12 0 035 915 / 12120035915


Bosch Part #'s

FR 7NPP332

0242236510

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov