⚡ Spark Smarter, Drive Stronger — The Iridium Edge You Can’t Miss!
Bosch 9621 OE Fine Wire Double Iridium Spark Plug features a 360-degree laser welded ultra-fine iridium firing pin and ground electrode, delivering superior ignitability with 24% less voltage needed and 4X longer lifespan than copper plugs. Pre-gapped and equipped with corrosion-resistant nickel-plated threads, it ensures quick, hassle-free installation. Designed to meet or exceed OE standards, it’s optimized for modern Gasoline Direct Injection engines and fits a wide range of popular vehicle models.
Brand | Bosch |
Core Material | Iridium |
Gap Size | 0.04 Inches |
Thread Size | 12mm |
Top Material Type | Nickel |
Vehicle Service Type | Car |
Global Trade Identification Number | 00028851034258 |
Automotive Fit Type | Vehicle Specific Fit |
UPC | 028851034258 |
OEM Part Number | 9621 |
Manufacturer | Bosch Automotive |
Model | Spark Plug |
Item Weight | 1.44 ounces |
Product Dimensions | 0.94 x 4.02 x 1.06 inches |
Item model number | 9621_1 |
Exterior | Machined |
Manufacturer Part Number | 9621 |
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