Sonnax turbine-side stator cap AL-WA-3 adapts Sonnax performance converter kits [AL-RK-1] and [AL-RK-2] for use in many Allison® 1000/2000/2400, '06-later converters. These include all '06 and '07 units and those '08-later units which have a turbine-side stator cap and bearing race stack up height of .482". 2008-Later converters which have a turbine-side stator cap and bearing race stack up height of .513" can be adapted to Sonnax [AL-RK-1] and [AL-RK-2] with Sonnax stator cap AL-WA-4.