x
Home Spark Plugs MSD Performance 3721 Spark Plug, 6IR5, Single
Special Order
MSD Performance 3721 Spark Plug, 6IR5, Single
  1. MSD Performance 3721 Spark Plug, 6IR5, Single

MSD Performance 3721 Spark Plug, 6IR5, Single

MSD3721
OUT OF STOCK, Please contact us for availability BEFORE ordering. This is a SPECIAL ORDER part. This item can be brought in either with a stock order or on it’s own. Contact us today to discuss available options.

$13.60

Iridium Tip Spark Plug; Single; Plug Type 6IR5; [Available While Supplies Last];
MSD iridium spark plugs will fire up your engine for optimum performance. These plugs have been engineered from the inside out for efficient combustion to create the most power possible for your setup. MSD's proprietary design features center tips made from iridium--a super hard material that promotes the best spark as well as increased resilience. They also feature copper center cores, special ceramic material to enhance the dielectric strength of the plug housing, and machine-ground straps enhanced with Yttrium to handle the heat of your high horsepower ignition. On the street, at the track, or up and over the trails, MSD iridium spark plugs will outperform and outlive the competition.
  • Proprietary Ceramic Formula
  • Unique Insulator Design
  • Yttrium Copper Core
  • Machined Electrode
  • 1mm Iridium Tip
  • Outlast Performance Plugs
  • Improves Comprehensive Drivability And Economy
  • Superior Design

Application Summary:

Year Make/Model
1973-1974 Buick Apollo
1970-1974 Chevrolet Bel Air
1970-1972 Chevrolet Biscayne
1970-1974 Chevrolet Blazer
1972 Chevrolet Brookwood
1975-1980 Chevrolet C10
1985-1986 Chevrolet C10
1970-1974 Chevrolet C10 Pickup
1970-1975 Chevrolet C10 Suburban
1985-1986 Chevrolet C10 Suburban
1975-1986 Chevrolet C20
1970-1974 Chevrolet C20 Pickup
1969-1986 Chevrolet C20 Suburban
1975-1986 Chevrolet C30
1970-1974 Chevrolet C30 Pickup
1970 Chevrolet Camaro
1972-1974 Chevrolet Camaro
1976-1983 Chevrolet Camaro
1970 Chevrolet Caprice
1972-1974 Chevrolet Caprice
1970-1973 Chevrolet Chevelle
1970 Chevrolet Corvette
1972-1974 Chevrolet Corvette
1969-1974 Chevrolet El Camino
1976-1979 Chevrolet El Camino
1975-1983 Chevrolet G10
1970 Chevrolet G10 Van
1972-1974 Chevrolet G10 Van
1975-1986 Chevrolet G20
1970-1974 Chevrolet G20 Van
1975-1988 Chevrolet G30
1970-1974 Chevrolet G30 Van
1970-1974 Chevrolet Impala
1975-1981 Chevrolet K5 Blazer
1987-1988 Chevrolet R20
1987-1988 Chevrolet R30
1970 Chevrolet Townsman
1972 Chevrolet Townsman
1975-1978 GMC C15
1975-1978 GMC C15 Suburban
1970-1974 GMC C15/C1500 Pickup
1970-1974 GMC C15/C1500 Suburban
1979-1983 GMC C1500
1985-1986 GMC C1500
1979-1986 GMC C1500 Suburban
1975-1978 GMC C25 Suburban
1970-1974 GMC C25/C2500 Suburban
1979-1980 GMC C2500
1981-1986 GMC C2500 Suburban
1975-1978 GMC C35
1969-1974 GMC C35/C3500 Pickup
1979-1986 GMC C3500
1988-1989 GMC C3500
1978-1979 GMC Caballero
1975-1978 GMC G15
1970-1974 GMC G15/G1500 Van
1975-1978 GMC G25
1970-1974 GMC G25/G2500 Van
1975-1978 GMC G35
1971-1974 GMC G35/G3500 Van
1979-1988 GMC G3500
1970-1981 GMC Jimmy
1975-1978 GMC K15
1975-1978 GMC K15 Suburban
1970-1974 GMC K15/K1500 Pickup
1970-1974 GMC K15/K1500 Suburban
1979-1985 GMC K1500
1979-1984 GMC K1500 Suburban
1975-1978 GMC K25
1975-1978 GMC K25 Suburban
1970-1974 GMC K25/K2500 Pickup
1979-1986 GMC K2500
1979-1986 GMC K2500 Suburban
1970-1974 GMC K35/K3500 Pickup

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.