Best spark plugs for a 2014 Ford Mustang
Spark plug listings at Advance Auto Parts
Advance Auto Parts
Autolite
Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 104
MPN 104
$4.79
Advance Auto Parts
Autolite
Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP104
MPN APP104
$7.49
Advance Auto Parts
Autolite
Autolite Platinum Spark Plug: Enhanced Durability & Fuel Efficiency, AP104
MPN AP104
$5.49
Advance Auto Parts
Autolite Iridium
Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Optimum Performance, AI5363
MPN AI5363
$11.49
Advance Auto Parts
Autolite Iridium
Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP104
MPN XP104
$11.49
Advance Auto Parts
Autolite Iridium
Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5363
MPN XP5363
$11.49
Advance Auto Parts
Bosch
Bosch OE Fine Wire Double Iridium Spark Plug: High Performance & Longevity, 9616
MPN 9616
$39.99
Advance Auto Parts
Champion
Champion Copper Plus Spark Plug RS9YC - Dependable Performance & Durability, 304
MPN 304
$4.79
Advance Auto Parts
Champion
Champion Double Platinum Power Spark Plug RS9PYP4 - Enhanced Durability & Performance, 7304
MPN 7304
$6.99
Advance Auto Parts
Champion
Champion Iridium Spark Plug RES9WYPB4 - Maximum Performance & Longevity, 9901
MPN 9901
$10.49
Advance Auto Parts
Champion
Champion Platinum Power Spark Plug RES8PYB5 - Powerful Performance & Longevity, 3017
MPN 3017
$5.89
Advance Auto Parts
Champion
Champion Platinum Power Spark Plug RS10PYC4 - Powerful Performance & Longevity, 3401
MPN 3401
$5.89
Advance Auto Parts
DENSO
DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT20, 5326
MPN 5326
$14.49
Advance Auto Parts
DENSO
DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, ITV20, 5339
MPN 5339
$15.49
Advance Auto Parts
DENSO
DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT20TT, 4714
MPN 4714
$13.49
Advance Auto Parts
DENSO
DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV20TT, 4719
MPN 4719
$14.99
Advance Auto Parts
E3
E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.74
MPN E3.74
$8.49
Advance Auto Parts
Motorcraft
Motorcraft High-Performance Spark Plug: Enhances Fuel Efficiency, SP-589
MPN SP-589
$8.49
Advance Auto Parts
Motorcraft
Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Misfires, SP-548-X
MPN SP-548-X
$12.99
Advance Auto Parts
Motorcraft
Motorcraft Spark Plug: Enhanced Durability & Optimized Performance, SP-520-X
MPN SP-520-X
$7.29
Advance Auto Parts
NGK
NGK G-Power Spark Plug (TR6GP): Enhanced Durability & Fuel Efficiency, 5141
MPN 5141
$8.99
Advance Auto Parts
NGK
NGK Iridium IX Spark Plug (LTR6IX-11): Extreme Ignitability & Durability, 6509
MPN 6509
$17.99
Advance Auto Parts
NGK
NGK Iridium IX Spark Plug (TR6IX): Extreme Ignitability & Durability, 3689
MPN 3689
$16.99
Advance Auto Parts
NGK
NGK Laser Platinum Spark Plug (LTR6BP13): Fine Wire Tip for High Ignitability, 94806
MPN 94806
$16.99
Advance Auto Parts
NGK
NGK Laser Platinum Spark Plug (LTR6DP13): Fine Wire Tip for High Ignitability, 90374
MPN 90374
$16.99
Advance Auto Parts
NGK
NGK Ruthenium HX Spark Plug (LTR6AHX): High Ignitability & Durability, 91276
MPN 91276
$19.49Spark plug listings on Amazon
Brand and material notes
Copper plugs are often the least expensive. Platinum and iridium listings usually last longer and cost more. Use the merchant page and your owner’s manual — this site does not assign a heat range or claim a performance gain.
Before you buy
- Confirm the engine code on the vehicle or build sticker.
- Match the OE spark-plug number when you have it.
- Check plug gap, torque, and how many plugs the engine uses.
- Treat Advance and Amazon cards as separate offers, not the same SKU.
Other eligible years
This site contains affiliate links. We may earn a commission if you buy through Advance Auto Parts or Amazon. Listings come from merchant catalogs for the selected year, make, and model. They are not OEM confirmation of engine, plug gap, torque, heat range, or quantity.