Ignition Coil For Briggs & Stratton 400400; 422700; 422707-1529; 100% new magneto coil meets OEM quality for tractors and farm equipment 1-year warranty covers you throughout planting and harvesting seasons Factory direct pricing delivers an honest value for hard-earned money Replaces OEM Numbers: BRIGGS & STRATTON: 394891 Specs: Description : Magneto coil, Fits 16 - 18 HP engines twin cylinder L-head engines with electronic ignition.