Brand new 4 pack ignition stick coilDirect replacement to your original unit.Ultra high output spark / Smooth engine operationEfficient power transfer connectionsThe Quality exceeds the OEM equipment. All products are testedWith certain Yamaha models, the spark plug caps and coils are combined to reduce the number of parts used in order to improve efficiency. However, when the spark plug cap wears out, the cost of the replacement becomes more expensive. If you are experiencing ignition problems this could mean the ignition cap coil needs to be replaced. Simple, easy to install, affordable, and improves engine performance.