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MSD Iridium Spark Plug
$19.95
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
  • Heat Range: 5
  • Hex Size: 13/16
  • Length: Standard
  • Plug Style Code: 16IR5Y
  • Product Type: Spark Plug
  • Projected Tip: Yes
  • Quantity: 4
  • Reach: 0.4375
  • Resistor: Yes
  • Seat Type: Tapered
  • Style: Iridium
  • Thread Size: 18mm
  • Warranty: Limited 1 Year Warranty


Other Part Numbers:
MSD Ignition #MSD-37444

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WARNING: Cancer and Reproductive Harm
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Vehicle Make/Model
Dodge Ram 3500 1994-1995 Base
Dodge Ram 3500 1995 Custom
Ford Bronco 1966-1974 Base
Ford Bronco 1968-1973 Wagon
Ford Bronco 1968-1969 Roadster
Ford Bronco 1980-1981 Ranger XLT
Ford Bronco 1980-1992 Custom
Ford Bronco 1982-1983 XLT Lariat
Ford Bronco 1982-1983 XLS
Ford Bronco 1984-1992 XLT
Ford Bronco 1985-1992 Eddie Bauer
Ford Bronco 1990-1992 XL
Ford Bronco 1992 XLT Nite
Ford Bronco II 1984-1985 XLS
Ford Bronco II 1984-1990 Eddie Bauer
Ford Bronco II 1984-1986 Base
Ford Bronco II 1984-1990 XLT
Ford Bronco II 1987-1990 XL
Ford Bronco II 1988-1990 XL Sport
Ford Bronco II 1989-1990 XLT Plus
Ford Club 1957-1958 Base
Ford Country Sedan 1955-1964 Base
Ford Country Squire 1955-1959, 1969-1974 Base
Ford E-100 Econoline 1975-1978 Northland
Ford E-100 Econoline 1975-1978 Chateau
Ford E-100 Econoline 1975-1978 Custom
Ford E-100 Econoline 1975-1978 Base
Ford E-100 Econoline Club Wagon 1975-1978 Northland
Ford E-100 Econoline Club Wagon 1975-1978 Custom
Ford E-100 Econoline Club Wagon 1975-1978 Base
Ford E-100 Econoline Club Wagon 1975-1978 Chateau
Ford E-150 Econoline 1979-1980, 1982-1983, 1987-1989, 1991 Custom
Ford E-150 Econoline 1979-1980, 1982, 1984-1986, 1992-1996 Base
Ford E-150 Econoline 1979-1980, 1982 Chateau
Ford E-150 Econoline 1983-1989, 1991-1996 XL
Ford E-150 Econoline Club Wagon 1979-1980, 1982-1983, 1987-1989, 1991-1996 Custom
Ford E-150 Econoline Club Wagon 1979-1980, 1982, 1984-1986 Base
Ford E-150 Econoline Club Wagon 1979-1980, 1982, 1992-1996 Chateau
Ford E-150 Econoline Club Wagon 1983-1989, 1991 XL
Ford E-150 Econoline Club Wagon 1984-1989, 1991-1996 XLT
Ford E-250 Econoline 1981-1982 Chateau
Ford E-250 Econoline 1981-1982, 1984-1986, 1992-1996 Base
Ford E-250 Econoline 1981-1983, 1987-1989, 1991 Custom
Ford E-250 Econoline 1983-1989, 1991-1996 XL
Ford E-250 Econoline Club Wagon 1981-1983, 1987-1989, 1991 Custom
Ford E-250 Econoline Club Wagon 1981-1982, 1984-1986 Base
Ford E-250 Econoline Club Wagon 1981-1982 Chateau
Ford E-250 Econoline Club Wagon 1983-1989, 1991 XL
Ford E-250 Econoline Club Wagon 1984-1989, 1991 XLT
Ford E-350 Econoline 1991 Custom
Ford E-350 Econoline 1991-1996 XL
Ford E-350 Econoline 1992-1996 Base
Ford E-350 Econoline Club Wagon 1991 XL
Ford E-350 Econoline Club Wagon 1991-1996 Custom
Ford E-350 Econoline Club Wagon 1991-1996 XLT
Ford E-350 Econoline Club Wagon 1992-1996 XLT HD
Ford E-350 Econoline Club Wagon 1992-1993 Custom HD
Ford E-350 Econoline Club Wagon 1992-1996 Chateau HD
Ford E-350 Econoline Club Wagon 1992-1996 Chateau
Ford E-350 Econoline Club Wagon 1994-1996 XL HD
Ford F-100 1957-1958, 1964-1979, 1983 Base
Ford F-100 1975-1978 Northland
Ford F-100 1975-1981 Ranger
Ford F-100 1975-1981 Ranger XLT
Ford F-100 1975-1982 Custom
Ford F-100 1977 XLT
Ford F-100 1978-1981 Ranger Lariat
Ford F-100 1982-1983 XLS
Ford F-100 1982-1983 XLT Lariat
Ford F-100 1982-1983 XL
Ford F-150 1975-1978 Northland
Ford F-150 1975-1981 Ranger XLT
Ford F-150 1975-1981, 1984-1989 Ranger
Ford F-150 1975-1992 Custom
Ford F-150 1976-1978, 1983-1986 Base
Ford F-150 1977, 1983-1984, 1990-1996 XLT
Ford F-150 1978-1981 Ranger Lariat
Ford F-150 1982, 1985-1992 XLT Lariat
Ford F-150 1982-1983 XLS
Ford F-150 1982-1996 XL
Ford F-150 1993-1995 Lightning
Ford F-150 1995-1996 Eddie Bauer
Ford F-150 1995-1996 Special
Ford F-250 1961-1974, 1976-1978, 1983-1986, 1995 Base
Ford F-250 1975-1981 Ranger XLT
Ford F-250 1975-1982, 1987-1994 Custom
Ford F-250 1975-1978 Northland
Ford F-250 1975-1981, 1992, 1994 Ranger
Ford F-250 1977, 1983-1984, 1993-1996 XLT
Ford F-250 1978-1981 Ranger Lariat
Ford F-250 1982, 1985-1992 XLT Lariat
Ford F-250 1982-1996 XL
Ford F-250 1982-1983 XLS
Ford F-250 1995-1996 Special
Ford F-250 1995-1996 Eddie Bauer
Ford F-250 1996 XLT VIP
Ford F-350 1975-1982, 1987-1992 Custom
Ford F-350 1975-1994, 1996 Base
Ford F-350 1975-1981 Ranger
Ford F-350 1975-1978 Northland
Ford F-350 1975-1981 Ranger XLT
Ford F-350 1977, 1983-1984, 1986, 1993-1996 XLT
Ford F-350 1978-1981 Ranger Lariat
Ford F-350 1982-1983 XLS
Ford F-350 1982-1996 XL
Ford F-350 1982, 1985-1992 XLT Lariat
Ford F-350 1995 Eddie Bauer
Ford F-350 1995-1996 Special
Ford Fairlane 1955-1969 Base
Ford Fairlane 1957-1970 500
Ford Fairlane 1966-1967 500XL
Ford Fairmont 1978-1983 Base
Ford Fairmont 1978-1983 Futura
Ford Fairmont 1979-1983 Wagon
Ford Fairmont 1979-1983 Elite
Ford Fairmont 1981, 1983 S
Ford Falcon 1960-1970 Base
Ford Falcon 1962 Deluxe
Ford Falcon 1963-1970 Futura
Ford Falcon 1963-1965 Futura Sprint
Ford Falcon Sedan Delivery 1961-1965 Base
Ford Galaxie 1959-1967 Base
Ford Galaxie 1960 Special
Ford Galaxie 1961 Town Victoria
Ford Galaxie 1961 Sunliner
Ford Galaxie 1961 Club Victoria
Ford Galaxie 1961 Starliner
Ford Galaxie 500 1962-1967 XL
Ford Galaxie 500 1962-1964 Victoria
Ford Galaxie 500 1962-1964 Sunliner
Ford Galaxie 500 1962-1967 Base
Ford Gran Torino 1972 Squire
Ford Gran Torino 1972 Sport
Ford Gran Torino 1972 Base
Ford Granada 1975-1980 Ghia
Ford Granada 1975-1980 Base
Ford Granada 1978-1980 ESS
Ford Granada 1981-1982 GL
Ford Granada 1981-1982 L
Ford Granada 1981-1982 GLX
Ford LTD 1967-1983 Base
Ford LTD 1970-1976, 1983 Brougham
Ford LTD 1975-1983 Country Squire
Ford LTD 1975-1979 Landau
Ford LTD 1980-1982 S
Ford LTD 1980-1983 Crown Victoria
Ford LTD II 1977-1979 S
Ford LTD II 1977-1979 Base
Ford LTD II 1977-1978 Brougham
Ford LTD II 1977 Squire
Ford LTD II 1979 Landau
Ford Maverick 1970-1977 Base
Ford Maverick 1975-1977 Grabber
Ford Mustang 1964-1973, 1979-1982 Base
Ford Mustang 1965-1970 Shelby GT-350
Ford Mustang 1966 Shelby GT-350H
Ford Mustang 1967-1970 Shelby GT-500
Ford Mustang 1968 Shelby GT-500KR
Ford Mustang 1969-1971 Boss 302
Ford Mustang 1969-1970 Boss 429
Ford Mustang 1970-1973 Mach 1
Ford Mustang 1970-1973 Grande
Ford Mustang 1971-1972 Boss 351
Ford Mustang 1979-1982 Ghia
Ford Mustang 1981 Cobra
Ford Mustang 1982 L
Ford Mustang 1982 GLX
Ford Mustang 1982 GT
Ford Mustang 1982 GL
Ford Mustang II 1974 Mach 1
Ford Mustang II 1974 Ghia
Ford Mustang II 1974 2+2
Ford Mustang II 1974 Base
Ford Pinto 1971-1974 Base
Ford Ranch Wagon 1957-1962, 1969-1972 Base
Ford Ranch Wagon 1970 Police Cruiser
Ford Ranchero 1957-1971 Base
Ford Ranchero 1957-1958, 1966 Custom
Ford Ranchero 1967-1974, 1976-1978 500
Ford Ranchero 1967 500 XL
Ford Ranchero 1968-1974, 1976-1978 GT
Ford Ranchero 1970-1974, 1976-1978 Squire
Ford Skyliner 1957-1958 Base
Ford Starliner 1960 Base
Ford Sunliner 1955-1958 Base
Ford Thunderbird 1955-1973, 1980-1982 Base
Ford Thunderbird 1980 Silver Anniversary
Ford Thunderbird 1980-1982 Town Landau
Ford Thunderbird 1981-1982 Heritage
Ford Torino 1968-1974 Base
Ford Torino 1968-1971 GT
Ford Torino 1969-1971 Squire
Ford Torino 1969-1971 Cobra
Ford Torino 1970-1971 Super Cobra Jet
Ford Torino 1970-1971 Brougham
Ford Torino 1971 500
Ford Victoria 1955-1958 Base
Lincoln Continental 1961-1972 Base
Lincoln Mark III 1969-1971 Base
Mercury Capri 1979-1980 Ghia
Mercury Capri 1979-1982 Base
Mercury Capri 1981-1982 GS
Mercury Capri 1982 L
Mercury Capri 1982 Black Magic
Mercury Capri 1982 RS
Mercury Comet 1960-1969, 1971-1977 Base
Mercury Comet 1961-1963 S-22
Mercury Comet 1962-1963 Custom
Mercury Comet 1964-1965 404
Mercury Comet 1964-1965 202
Mercury Commuter 1961-1964 Base
Mercury Cougar 1967-1970, 1981-1982 Base
Mercury Cougar 1967-1970, 1974, 1980-1982 XR-7
Mercury Cougar 1969-1970 Cobra Jet
Mercury Cougar 1969-1970 Boss 302
Mercury Cougar 1969-1970 Boss 429
Mercury Cougar 1982 GS
Mercury Cougar 1982 LS
Mercury Custom 1955-1956 Base
Mercury Cyclone 1964-1971 Base
Mercury Cyclone 1969-1971 Spoiler
Mercury Cyclone 1969 CJ
Mercury Cyclone 1970-1971 GT
Mercury Marauder 1969-1970 X-100
Mercury Marauder 1969-1970 Base
Mercury Marquis 1969-1973 Brougham
Mercury Marquis 1969-1973 Base
Mercury Meteor 1961-1963 Base
Mercury Meteor 1961 600
Mercury Meteor 1962-1963 S-33
Mercury Meteor 1962-1963 Custom
Mercury Monarch 1975-1977 Ghia
Mercury Monarch 1975-1980 Base
Mercury Monarch 1976 Grand Ghia
Mercury Montclair 1955-1956, 1964-1968 Base
Mercury Montego 1968-1974 MX
Mercury Montego 1968-1974 Base
Mercury Montego 1970-1974 Villager
Mercury Montego 1970-1974 MX Brougham
Mercury Montego 1972-1973 GT
Mercury Monterey 1955-1956, 1961-1964, 1968-1973 Base
Mercury Monterey 1962-1963, 1969-1973 Custom
Mercury Monterey 1962 Custom S-55
Mercury Monterey 1963 S-55
Mercury Park Lane 1964-1968 Base
Mercury Zephyr 1978-1983 Z7
Mercury Zephyr 1978-1983 Base
Mercury Zephyr 1982-1983 GS
Mercury Zephyr 1983 Z7 GS

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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