[Eliminate Intermittent Starting] Fixes key switch that only works when jiggled on PC200 7 excavators at pipeline jobs. Reliable start every turn for early morning cold starts on mountain logging sites. [Salt Spray ] Aluminum alloy body stands up to coastal operation and road salt exposure on WA40 3 loaders. Prevents terminal that causes voltage drop and slow cranking on PC460 7 machines. [Simple Plug and Play] Unplug old switch and install this 22B0611910 replacement on PC120 6 in your equipment yard. No cutting soldering or wire tracing required for dozer or excavator installation. [High Hardness Housing] Aluminum construction resists deformation from tool drops and panel impacts on PC78UU 6 excavators. Maintains key cylinder alignment through years of heavy equipment use. [Complete Model Coverage] Works on D21A 8E0 D21A 8T and D21P 8 bulldozers plus PC350 7 PC100 7 PC60 7. Also fits 7 and PC78US 6 for mixed fleet operators and rental yards.