Bosch Iridium Spark Plug 9604

Features & Benefits
The only iridium spark plug line engineered for both high performance and long life. The laser welded iridium tipped center and ground electrodes (Double iridium) provide exceptionally long life.

4x longer service life vs standard copper spark plugs
Ultra fine wire iridium center electrode requires less voltage to fire delivering exceptional ignitability
The laser welded iridium tipped center and ground electrodes (Double Iridium) provide exceptionally long life
BOSCH exclusive tapered laser-welded iridium alloy tipped ground electrode delivers the ultimate in high performance
Factory set pre-gap ensures ease of installation.
Product Details
Part Number: 9604
Weight: 0.12lbs
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Metal Type: Iridium
Center Electrode Core Material: Nickel-Yttrium and Copper and Iridium
Center Electrode Tip Material: Iridium
Drive Size: 16mm
Ground Electrode Tip Material: Nickel-Yttrium and Iridium
Insulator Material: Ceramic
Insulator Type: Projected
Manufacturer Heat Range Number: 7
Package Quantity: 1
Reach (in): 0.75
Resistor: Yes
Seat Style: Gasket
Thread Size: 19 mm