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Receive Up To 25% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Shocks & Struts, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, Chassis, CV Axles, Batteries, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Car Wash Accessories, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Outdoor Lifestyle, Towing, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Air Filters, Oil Filters, Bearings & Seals and Engine Parts.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 9/24/17.

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Bosch  Spark Plug 406475
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  • Part #: 9602|
  • SKU: 406475

Available tomorrow

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    • Double iridium: Iridium on the ground and center electrodes for longer life and increased performance
    • OE Fine Wire design requires up to 24 percent less voltage to ignite

Bosch Spark Plug

Bosch original equipment design, materials and processes represent the best of OE technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and platinum ground electrode help it to go the distance.
  • Double iridium: Iridium on the ground and center electrodes for longer life and increased performance
  • OE Fine Wire design requires up to 24 percent less voltage to ignite
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying antiseize
  • 360 degree continuous laser welding increases durability for increased life
  • Resistor:Yes-Electrode Core Material:Nickel-Yttrium, Copper & Iridium-Electrode Tip Material:Iridium-Gap Size:1mm-Ground Configuration:Standard-Ground Electrode Quantity:1-Ground Electrode Tip Material:Nickel-Yttrium & Platinum
  • Hex Size:16mm-Insulator Material:Ceramic-Reach:17.5mm-Seat Type:Tapered-Thread Diameter:14mm
The Bosch Group is a leading global supplier of automotive and industrial technology, consumer goods and building technology. As one of the leading automotive suppliers in North America, the Automotive Technology business has approximately 30 primary locations and is Bosch's largest business sector in North America.

Center Electrode Core Material
Nickel-Yttrium and Copper and Iridium
Ground Electrode Quantity
Thread Diameter
14 mm
Center Electrode Tip Material
17.5 mm
Hex Size
16 mm
Gap Size
1 mm
Ground Electrode Tip Material
Nickel-Yttrium and Platinum
Ground Configuration
Insulator Material
Seat Type
Seat Style
Thread Size
17.5 mm


Bosch Spark Plug is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Performs as Advertised My experience has shown Bosch makes the best spark plugs on the planet. When I needed to tune up my 2006 Cadillac CTS-V with 108K miles, the natural choice was Bosch Iridium. The Bosch website shows exactly what plugs fit your application and Pep Boys provided an excellent price and service. Delivered to my door with free shipping. UNBEATABLE!
Date published: 2014-10-07
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