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25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ30 in Cart.

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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, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, 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: Shocks & Struts, Ignition, 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 2:59 am EST on 7/3/17.


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MSD  Spark Plug, 4 Per Package, 7IR6YS 1163719
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  • Part #: 37424|
  • SKU: 1163719

Available tomorrow after 12 p.m.


    • Shorty-style plugs for Header Clearance
    • Proprietary plug design inside and out
Retail
$35.99

MSD Spark Plug, 4 Per Package, 7IR6YS

MSD's Sparkplugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. The center tip of the plug is made from iridium to promote the best spark and increase resilience. A proprietary ceramic material enhances the dielectric strength of the plug housing forcing the spark, even under extreme cylinder pressures, to jump across the gap to the ground electrode. This electrode is machined to expose more spark to the incoming gases to promote the most effective combustion event possible.
  • Shorty-style plugs for Header Clearance
  • Proprietary plug design inside and out
  • Designed for use on high performance vehicles that utilize high output ignition systems
  • Machined electrode increases exposure to the flame to improve combustion
  • MSD's Proprietary ceramic formula provides the highest dielectric strength
  • Yttrium Copper ground electrode reduces the chance of pre-ignition
  • Iridium tip improves colds starts
  • Designed to outlast other performance plugs on the track or on the street
  • All spark plugs tested prior to packaging and shipping


Wrench Dia. Inches
8-May
Resistor
Yes
Quantity
Set of 4
Plug Thread Size
14mm
Electrode Core Material
Iridium
Electrode Tip Material
Iridium
Ground Strap
Single
Shorty Style Plug
Yes
Insulator Type
Projected
Manufacture Heat Range
6
Plug Seat Style
Gasket
Spark Plug Reach Inches
0.75

1163719

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