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MSD Iridium Spark Plug
$10.07
MSD's spark plugs 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 plug 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.

Features:
  • 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 ground electrode reduces the chance of pre-ignition
  • Iridium tip improves cold starts
  • All spark plugs tested prior to packaging and shipping
  • Unique insulator design improves spark isolation
  • Lower voltage Requirements for longer coil life
Specifications:
  • Brand: MSD
  • Clearance Category: Ignition
  • Heat Range: 4
  • Hex Size: 13/16
  • Length: Standard
  • Plug Style Code: 15IR4
  • Product Type: Spark Plug
  • Projected Tip: No
  • Quantity: 1
  • Reach: 0.375
  • Resistor: Yes
  • Sale Category: Ignition
  • Seat Type: Gasket
  • Style: Iridium
  • Thread Size: 14mm
  • Warranty: Limited 1 Year Warranty


Other Part Numbers:
MSD Ignition #MSD-3737

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
American Motors American 1958-1962 Deluxe
American Motors American 1958-1961 Super
American Motors American 1959 Panel Delivery
American Motors American 1960-1962 Custom
American Motors American 1962 400
American Motors American 1964-1965 330
American Motors American 1964-1965 440
American Motors American 1964-1965 440H
American Motors American 1964-1965 220
American Motors Classic 1961 Super
American Motors Classic 1961-1962 Custom
American Motors Classic 1961 Custom 400
American Motors Classic 1961-1962 Deluxe
American Motors Classic 1962 400
American Motors Classic 1963-1965 770
American Motors Classic 1963-1965 550
American Motors Classic 1963-1965 660
American Motors Custom 1961-1962 Base
American Motors Deluxe 1961-1962 Base
American Motors Marlin 1965-1966 Base
American Motors Rambler 1959-1960 Deluxe
American Motors Rambler 1959-1960 Custom
American Motors Rambler 1959-1960 Super
American Motors Rebel 1959 Super
American Motors Rebel 1959 Custom
American Motors Rebel 1959 Deluxe
American Motors Super Six 1961-1962 Base
Audi 80 1988 Base
Audi A4 1996-2006 Base
Audi A4 1998 Avant
Audi A4 2001 Basico
Audi A4 2001-2006 Luxury
Audi A4 2001-2004 Confort
Audi A4 2001 Sport
Audi A4 2003-2006 Cabrio
Audi A4 2003-2006 Vangard
Audi A4 2003-2006 Cabriolet
Audi A4 2004-2006 S Line
Audi A4 2005-2006 Elite
Audi A4 2005-2006 S Line Sport
Audi A4 2005-2006 Trendy
Audi A4 2006 Limited Edition
Pontiac Bonneville 1957 Base
Pontiac Catalina 1955-1958 Base
Pontiac Chieftain 1955, 1958 Safari
Pontiac Chieftain 1955-1956, 1958 Base
Pontiac Star Chief 1955-1956 Base
Pontiac Star Chief 1955-1956 Custom
Pontiac Super Chief 1957-1958 Base

MSD Ignition Banner

Who is MSD Ignition?

MSD Ignition started back in 1970. Based in El Paso Texas, the company is known for creating quality ignition systems for various automobiles. Today, they are considered the leading company when it comes to the ignition system and has become a brand recognized all over the world.

Changing the Way Vehicles are Made

MSD has helped shape the automotive industry by being the first company in the world to conduct an experiment regarding Multiple Spark Discharge for a vehicle’s ignition system. It has been suggested by Engineers who were working on the White Sands Missile Range in Southern Mexico. They noticed that their quest for power is limited by the amount of spark the ignition system can only generate. Hence, the idea of Multi Spark Discharge.

Racing Application

Soon after the product introduction, racers started applying it to their race cars. Due to its success, other top teams started using MSD which helped paved the way for the brand’s popularity. The majority of the race engines today use MSD and have proven to produce race champions.

The company operates in a 100,000 square feet facility in Texas. They house some of the most state-of-the-art equipment that helps them create products that are superior in quality.

Purchase MSD Ignition Products at Vivid Racing

If you are in search of the best ignition system available in the market, then MSD is the brand for you. Tested by many enthusiasts and racers for years, MSD has proven to provide optimum performance in every vehicle.




MSD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of the original purchase. This warranty is void for any products purchased through auction websites. If found to be defective as mentioned above, it will be repaired or replaced at the option of MSD. Any item that is covered under this warranty will be returned free of charge using Ground shipping methods.

This shall constitute the sole remedy of the purchaser and the sole liability of MSD. To the extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied, including any implied warranty of merchantability or fitness. In no event shall MSD or its suppliers be liable for special or consequential damages.

Intended normal use means that this item is being used as was originally intended and for the original application as sold by MSD. Any modifications to this item or if it is used on an application other than what MSD markets the product, the warranty will be void. It is the sole responsibility of the customer to determine that this item will work for the application they are intending. MSD will accept no liability for custom applications.

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