8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
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Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Spark Plug - Double Iridium Finewire

Spark Plug - Double Iridium Finewire

Part #: BSH 9622
Line: Bosch

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Features & Benefits

Warranty: Standard : Covered: Throughout the vehicle manufacturer's recommended change interval


Bosch OE Fine Wire Iridium. The only iridium spark plug line engineered for both High Performance and Long Life. The ultra fine wire design and laser welded, tapered ground electrode delivers the ultimate in High Performance. The laser welded iridium tipped center and ground electrodes (Double Iridium) provide exeptionally Long Life.

  • Pin-to-pin technology matches OE design to provide the best performance and longest life in high tech engines
  • Double iridium- Iridium on the ground and center electrodes for longer life and increased performance
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize


Brand Bosch
Spark Plug Thread Size 14
Ground Electrode Quantity 1
Approximate Resistor Value 6
Insulator Material Ceramic
Ground Electrode Tip Material Nickel-Yttrium and Platinum
Spark Plug Reach 26.5
VMRS Code 033003005
Spark Plug Seat Type Flat
Spark Plug Hex Size 16
Quality Level Better
Resistor Yes

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