Champion RBL-11Y Resistor Spark Plugs Set of 8 - New (NOS)

Set of 8 Champion RBL-11Y resistor spark plugs in the original factory carton — new old stock, never installed. Each plug is still in its individual printed Champion sleeve with clean threads and unfired insulator; the outer master box shows age-related wear, soiling, and torn flaps typical of long shelf storage. Application: Champion RBL-11Y resistor-type plugs were catalogued for period gasoline engines (automotive V8 and some marine/industrial gasoline applications). Exact application has not been verified here — the listing is sold by photographs and the printed Champion part number. Consult a Champion application chart for the correct plug type and gap for your engine. Condition: New / NOS (unused plugs, worn original packaging). Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.