Compatible with 316, 317, 318, and 420 models with Onan P218g or P220g engines. Compatible With 316, 317, 318, And 420 Models With Onan P218g Or P220g Engines. Not Compatible With Kohler Engines! The Ignition Module Can Be Checked With An Induction Tester (166-0820): Primary Resistance: 3.12ω, Primary Inductance: 6.67mh, Secondary Resistance: 20.5kω, Secondary Inductance: 41.30h.
