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MSD Iridium Spark Plug 37134

MSD Iridium Spark Plug 37134
$71.99 ea
NEWOut of stock with our supplier as of 08/24/2024
Model: 4017169
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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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
About MSD Ignition

Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you  need to meet your performance goals. We continue to innovate and invent components and technology that deliver  performance and reliability with products that are easy to use and install. 

Over the course of 40-plus years, MSD Performance has been driving the development of innovative components  that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to  top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in  motorsports.

MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. The line of MSD 6-Series Ignitions are the most popular aftermarket ignitions in the world due to our race-proven performance on the track and our reliability on the street!

Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power  and endurance. 

Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators  ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value.

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Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Ford Mustang II 2+2 1974 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II Base 1974 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II Base 1978 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II Ghia 1974 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II 1974 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II 1975 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II 1976 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II 1977 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang II 1978 2.3L / 140 / L4
2.8L / 171 / V6
5.0L / 302 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang Base 1979 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GLX 1982 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GL 1982 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT-350 20th Anniversary 1984 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GTS 1995 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1982 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1983 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1984 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1985 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1986 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1991 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1992 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1993 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1994 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang GT 1995 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang Ghia 1979 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1984 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1985 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1986 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1991 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1992 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang LX 1993 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang L 1982 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang L 1984 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang SVT Cobra R 1993 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang SVT Cobra 1993 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang SVT Cobra 1994 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang SVT Cobra 1995 5.0L / 302 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1979 5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1980 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1981 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1982 5.0L / 302 / V8
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1983 5.0L / 302 / V8
3.8L / 232 / V6
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1984 5.0L / 302 / V8
3.8L / 232 / V6
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1985 5.0L / 302 / V8
3.8L / 232 / V6
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1986 5.0L / 302 / V8
3.8L / 232 / V6
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1991 5.0L / 302 / V8
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1992 5.0L / 302 / V8
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1993 5.0L / 302 / V8
2.3L / 140 / L4		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1994 5.0L / 302 / V8
3.8L / 232 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1995 5.0L / 302 / V8
3.8L / 232 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1996 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1997 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1998 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 1999 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 2000 5.4L / 330 / V8
3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 2001 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 2002 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 2003 3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Ford Mustang 2004 3.9L / 238 / V6
3.8L / 232 / V6
4.6L / 281 / V8		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1976 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1977 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1979 2.3L / 140 / L4
2.8L / 171 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1980 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1981 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1982 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1983 2.3L / 140 / L4
3.8L / 232 / V6		 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Capri 1984 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1981 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1984 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1985 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1986 2.3L / 140 / L4 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1994 4.6L / 281 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1995 4.6L / 281 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1996 4.6L / 281 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;
Mercury Cougar 1997 4.6L / 281 / V8 Iridium Tip Spark Plug; 4 Pack; Plug Type 1IR5Y; [Available While Supplies Last];0.043 in. Plug Gap;

Specifications:

Emission Code 2
Heat Range 5
Hex Size 5/8
Length Standard
Part Type Spark Plug
Plug Style Code 1IR5Y
Product Type Spark Plug
Projected Tip Yes
Proposition 65 www.P65Warnings.ca.gov
Quantity 4
Reach 0.6910
Resistor Yes
Seat Type Tapered
Style Iridium
Thread Size 14mm
Warranty Limited 1 Year Warranty

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