Overview Reviews Product Description Spark Plug Champion 940/RDZ19H Plug Type: Resistor Plug Type Resistor Packaging type OEM packageFor Ryobi, Yard-Man, Yard Machine and Troy-Bilt with 4-cycle enginesBoxed individuallyOrder 4 for complete carton Product Videos Product Reviews Write a Review Write a Review × STENS Spark Plug 130-109 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *