Your motorcycle ignition coil converts the 12 volts from your battery into several thousand volts required to jump the spark plug gap and ignite the fuel/air mixture inside your cylinders. So it's a critical part of making your engine run at full performance. You might need a new ignition coil if your engine won't start, it stalls and loses power, you get bad gas mileage, or have backfiring. Even worse, your bad coil can overheat and crack the oil-filled housing, making your bike lose critical oil. We carry only the top engine coils made by trusted engine experts at manufacturers like Twin Power, ACCEL, Dynatek, V-Twin Manufacturing, Daytona Twin Tec, Drag Specialties, K&L, and more. You're sure to find the perfect product for your engine and your budget. While you're upgrading your coil, it's a great time to browse our selection of Motorcycle Batteries, as well as our Alternators and Charging Systems.