Normally used on vehicles that the spark plug is near the surface,
Examples would be small engine repair as in mopeds, lawn mowers, out board motors
and some motorcycles. These applications would not require long reach tools.
The 4412-321 kit Can be is used as well for tapered seat applications.
The installation is exactly the same for taper seat you would only need to order the appropriate taper insert separate.
Please note: P/n 6020 sealer is requied for taper seat inserts
amazon link sealer. 