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  See more parts for American Motors Concord
Select the year of your American Motors Concord:
MSD Iridium Spark Plug - 37204
MSD Iridium Spark Plug - 37204 - Image 2 MSD Iridium Spark Plug - 37204 - Image 2
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: 4
  • Hex Size: 45420
  • Length: Standard
  • Plug Style Code: 6IR4Y
  • Product Type: Spark Plug
  • Projected Tip: Yes
  • Quantity: 4
  • Reach: 0.4375
  • Resistor: Yes
  • Seat Type: Tapered
  • Style: Iridium
  • Thread Size: 14mm
  • Warranty: Limited 1 Year Warranty


Other Part Numbers:
MSD Ignition #MSD-37204

Proposition 65

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

Vehicle
1980-1982
 American Motors Concord
1981-1983
 American Motors Eagle
1980-1982
 American Motors Spirit
1973-1975
 Buick Apollo
1971-1973
 Buick Centurion
1973-1985
 Buick Century
1967-1975, 1977-1985
 Buick Electra
1970-1975, 1978-1979
 Buick Estate Wagon
1970-1972
 Buick GS
1968-1969
 Buick GS 350
1968-1969
 Buick GS 400
1970-1972
 Buick GS 455
1967
 Buick Gran Sport
1968-1985
 Buick LeSabre
1973-1987
 Buick Regal
1967-1975, 1977-1985
 Buick Riviera
1991
 Buick Roadmaster
1977-1980
 Buick Skyhawk
1967-1972, 1975-1983
 Buick Skylark
1968-1969
 Buick Special
1968-1972
 Buick Sportwagon
1967-1970
 Buick Wildcat
1991-1992
 Cadillac Brougham
1980-1982
 Cadillac DeVille
1981-1982
 Cadillac Eldorado
1980-1984, 1993, 1995
 Cadillac Fleetwood
1970-1982
 Checker Marathon
1971-1972, 1981
 Chevrolet Bel Air
1971
 Chevrolet Biscayne
1971
 Chevrolet Blazer
1971
 Chevrolet Brookwood
1976-1986
 Chevrolet C10
1970-1971
 Chevrolet C10 Pickup
1976-1985
 Chevrolet C20
1971
 Chevrolet C20 Pickup
1976, 1983-1984, 1986
 Chevrolet C30
1971
 Chevrolet C30 Pickup
1971, 1975-1992
 Chevrolet Camaro
1971, 1976-1993
 Chevrolet Caprice
1982-1983
 Chevrolet Celebrity
1971
 Chevrolet Chevelle
1980-1983
 Chevrolet Citation
1971, 1976-1982, 1984, 1988-1989
 Chevrolet Corvette
1970-1973, 1976-1987
 Chevrolet El Camino
1976-1984
 Chevrolet G10
1971
 Chevrolet G10 Van
1976-1984
 Chevrolet G20
1971
 Chevrolet G20 Van
1978-1984
 Chevrolet G30
1971
 Chevrolet G30 Van
1971, 1976-1985
 Chevrolet Impala
1971, 1976-1986
 Chevrolet K10 Suburban
1986
 Chevrolet K20
1977-1980
 Chevrolet K30
1975-1986
 Chevrolet K5 Blazer
1970-1971
 Chevrolet Townsman
1976-1984
 Chevrolet Van
1976
 Chevrolet Vega
1980-1983
 Chrysler Cordoba
1983
 Chrysler Fifth Avenue
1978-1981
 Chrysler LeBaron
1982
 Chrysler New Yorker
1979-1981
 Chrysler Newport
1978-1981
 Chrysler Town & Country
1976-1980
 Dodge Aspen
1975-1980
 Dodge B100
1981-1987
 Dodge B150
1975-1980
 Dodge B200
1975-1980
 Dodge B300
1975, 1977-1979
 Dodge CB300
1976
 Dodge Charger
1975-1976
 Dodge Coronet
1975-1979, 1984, 1986-1987
 Dodge D100
1977-1987
 Dodge D150
1981-1987
 Dodge D250
1975-1978
 Dodge D300
1981-1987
 Dodge D350
1975-1976
 Dodge Dart
1978-1983
 Dodge Diplomat
1980-1983
 Dodge Mirada
1977-1978
 Dodge Monaco
1975-1981
 Dodge Ramcharger
1979-1981
 Dodge St. Regis
1975-1977, 1986-1987
 Dodge W100
1978-1987
 Dodge W150
1975-1980
 Dodge W200
1975-1978
 Dodge W300
1982
 Dodge W350
1968-1996
 Ford Bronco
1970-1974
 Ford Country Squire
1975-1978
 Ford E-100 Econoline
1979-1989, 1991-1996
 Ford E-150 Econoline
1981-1989, 1991
 Ford E-250 Econoline
1981-1989, 1991-1996
 Ford E-350 Econoline
1975-1976
 Ford Elite
1973-1982
 Ford F-100
1975-1996
 Ford F-150
1973-1997
 Ford F-250
1975-1996
 Ford F-350
1969-1970
 Ford Fairlane
1978-1982
 Ford Fairmont
1970
 Ford Falcon
1972
 Ford Gran Torino
1975-1981
 Ford Granada
1969-1986
 Ford LTD
1987-1991
 Ford LTD Crown Victoria
1975-1977
 Ford Maverick
1969-1973, 1979-1982, 1984-1995
 Ford Mustang
1982
 Ford Mustang GT
1975-1977
 Ford Mustang II
1969-1972
 Ford Ranch Wagon
1970-1979
 Ford Ranchero
1972-1982, 1984-1985, 1991-1993
 Ford Thunderbird
1970-1976
 Ford Torino
1971-1972
 GMC C/K 15
1971-1972
 GMC C/K 25
1975-1978
 GMC C15
1979-1986
 GMC C1500
1975-1978
 GMC C25
1979-1986
 GMC C2500
1976-1978
 GMC C35
1979-1986
 GMC C3500
1978-1987
 GMC Caballero
1982-1984
 GMC G3500
1971-1972, 1975-1983, 1985-1986
 GMC Jimmy
1971, 1975-1976
 GMC Sprint
1980-1983
 Jeep CJ5
1980-1983
 Jeep CJ7
1969-1971
 Jeep J-100
1969-1971
 Jeep J-2500
1969-1970
 Jeep J-2600
1969-1970
 Jeep J-2700
1969-1970
 Jeep J-3500
1969-1970
 Jeep J-3600
1969-1970
 Jeep J-3700
1969-1970
 Jeep J-3800
1981-1983
 Jeep Scrambler
1971
 Jeep Wagoneer
1973-1980, 1982-1985
 Lincoln Continental
1974-1976
 Lincoln Mark IV
1977-1979
 Lincoln Mark V
1980-1983
 Lincoln Mark VI
1984-1985, 1987-1992
 Lincoln Mark VII
1977-1980
 Lincoln Versailles
1979-1985
 Mercury Capri
1971-1977
 Mercury Comet
1969-1985, 1991-1993
 Mercury Cougar
1968-1971
 Mercury Cyclone
1975-1989
 Mercury Grand Marquis
1971-1982
 Mercury Marquis
1975-1980
 Mercury Monarch
1970-1975
 Mercury Montego
1971-1974
 Mercury Monterey
1978-1982
 Mercury Zephyr
1975, 1981-1983, 1985
 Oldsmobile 98
1975, 1977, 1991-1992
 Oldsmobile Custom Cruiser
1970-1971, 1976-1981
 Oldsmobile Cutlass
1978-1984
 Oldsmobile Cutlass Calais
1982-1985
 Oldsmobile Cutlass Ciera
1980-1983
 Oldsmobile Cutlass Cruiser
1978-1980, 1985-1987
 Oldsmobile Cutlass Salon
1978-1982, 1984-1987
 Oldsmobile Cutlass Supreme
1975, 1977-1985
 Oldsmobile Delta 88
1973-1983
 Oldsmobile Omega
1981-1984
 Oldsmobile Toronado
1974
 Plymouth Duster
1982-1983
 Plymouth Gran Fury
1975-1976
 Plymouth Scamp
1975-1980
 Plymouth Trailduster
1975-1976
 Plymouth Valiant
1976
 Plymouth Volare
1982-1983
 Pontiac 6000
1977
 Pontiac Astre
1972-1986
 Pontiac Bonneville
1972-1973, 1977
 Pontiac Catalina
1970-1985, 1987-1992
 Pontiac Firebird
1972-1973
 Pontiac GTO
1973-1974
 Pontiac Grand Am
1976-1977
 Pontiac Grand LeMans
1973-1974, 1977-1987
 Pontiac Grand Prix
1972-1974
 Pontiac Grandville
1975-1977
 Pontiac LeMans
1978-1981
 Pontiac Phoenix
1970
 Pontiac Tempest
1971-1975
 Pontiac Ventura

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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