Amazon.com: NGK G-Power Spark Plug BKR5EGP 7090 (Pack of 8) for Briggs & Stratton 4-cycle OHV Air Cooled Reach 19mm Gap 1.0mm Resistor Value 5K Ohm Cast Iron 18-25.3 lb. ft. Aluminum
Amazon.com: NGK G Power Platinum Spark Plug BKR5EGP (8 Pack) for MERCEDES-BENZ 500SEL BASE 1992-1993 5.0L/4973cc : Automotive