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  See more parts for Ford Bronco
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MSD Crank Trigger Wheel Kit - Flying Magnet - BBF - 7.25 in. - 8644
MSD Crank Trigger Wheel Kit - Flying Magnet - BBF - 7.25 in. - 8644 - Image 2
Most crank triggers have a wheel, with steel studs sticking out, bolted to the harmonic balancer. As the crankshaft turns, the studs pass by a stationary magnetic pick-up, triggering the ignition. This pick-up can be triggered by other bolts, debris, or even vibrations which will cause a loss of power or engine damage. The MSD Flying Magnet Crank Trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This "flying magnet" design produces accurate trigger signals and the non-magnetic pick-up cannot be falsely triggered.

Features:
  • Absolutely the most accurate way to trigger the ignition.
  • The non-magnetic pickup cannot be false triggered.
  • Powerful magnets are embedded in a billet aluminum trigger wheel.
  • Kits feature special brackets and mounting hardware for a variety of engines.
  • Fits 429/460 Big Block Ford.
  • Does not fit Cleveland blocks.
Specifications:
  • Brand: MSD
  • Color: Red
  • Diameter: 7.25 in.
  • Diameter: 7.25"
  • Make: Ford
  • Product Type: Crank Trigger Kit
  • Sensor Dimensions: 3/4" x 2.25"
  • Sensor Type: Magnetic
  • Trigger Type: 4X
  • Warranty: Limited 1 Year Warranty
  • Wheel Width: 3/8"

Other Part Numbers:
MSD Ignition #MSD-8644

Proposition 65

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

Vehicle
1978-1996
 Ford Bronco
1975-1978
 Ford E-100 Econoline
1979-1989, 1991-1996
 Ford E-150 Econoline
1981-1989, 1991-1996
 Ford E-250 Econoline
1981-1989, 1991-1996
 Ford E-350 Econoline
1975-1976
 Ford Elite
1975-1979, 1981
 Ford F-100
1975-1996
 Ford F-150
1975-1997
 Ford F-250
1975-1997
 Ford F-350
1975-1976
 Ford Gran Torino
1975-1977
 Ford Granada
1975-1986
 Ford LTD
1988-1991
 Ford LTD Crown Victoria
1995
 Ford Mustang
1972-1979
 Ford Ranchero
1975-1979
 Ford Thunderbird
1975-1976
 Ford Torino
1975-1980
 Lincoln Continental
1975-1976
 Lincoln Mark IV
1977-1979
 Lincoln Mark V
1980
 Lincoln Mark VI
1977
 Lincoln Versailles
1975-1979
 Mercury Cougar
1975-1981, 1986
 Mercury Grand Marquis
1975-1981
 Mercury Marquis
1975-1977
 Mercury Monarch
1975-1976
 Mercury Montego

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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