MSD - 3737
Iridium Tip Spark Plug; Single; Plug Type 15IR4; [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.
- Designed for use on high performance vehicles that utilize high output ignition systems
- All spark plugs tested prior to packaging and shipping
- Proprietary plug design inside and out
- Unique insulator design improves spark isolation
- Machined electrode increases exposure to the flame to improve combustion
- MSD’s proprietary ceramic formula provides the highest dielectric strength
- Iridium tip improves cold starts
- Yttrium ground electrode reduces the chance of pre-ignition
- Lower voltage Requirements for longer coil life
Brand: MSD
Clearance Category: Ignition
Discount Percentage: 5-25%
Emission Code: 2
Heat Range: 4
Hex Size: 13/16
Length: Standard
Plug Style Code: 15IR4
Product Type: Spark Plug
Projected Tip: No
Quantity: 1
Reach: 0.3750
Resistor: Yes
Sale Category: Ignition
Seat Type: Gasket
Style: Iridium
Thread Size: 14mm
Warning: California Proposition 65
Warranty: Limited 1 Year Warranty
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