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Looking for aftermarket parts to modify or upgrade your Checker Marathon with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.
 OUT OF STOCK 2763NGK G-Power Series offers the performance and durability of platinum at a competitive price. Fine wire platinum tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy.... NGK G-Power Spark Plug Box of 4 (GR4GP) 1968-1969 Checker Marathon Base / Town Custom $40.63 |
 OUT OF STOCK 7355The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium IX Spark Plug Box of 4 (XR5IX) 1968-1968 Checker Marathon Town Custom 1968-1970 Checker Marathon Base 1970-1970 Checker Marathon Deluxe $54.25 |
OUT OF STOCK 97382The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Iridium IX Spark Plug Box of 4 (GR4IX) 1968-1969 Checker Marathon Base / Town Custom $54.25 |
 OUT OF STOCK 3207NGK Laser Iridium plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high-performance engines.... NGK Single Platinum Spark Plug Box of 4 (UR45GP) 1975-1975 Checker Marathon Aerobus / Base / Deluxe 1977-1977 Checker Marathon Base / Deluxe 1979-1982 Checker Marathon Base / Deluxe $40.63 |
OUT OF STOCK 7559The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.... NGK Single Iridium Spark Plug Box of 4 (UR45IX) 1975-1975 Checker Marathon Aerobus / Base / Deluxe 1977-1977 Checker Marathon Base / Deluxe 1979-1982 Checker Marathon Base / Deluxe $54.25 |
 IN STOCK 6578NGK standard plugs are constructed for longer life and optimum performance.... NGK Standard Spark Plug Box of 4 (BPR4ES SOLID) 1968-1969 Checker Marathon Base / Town Custom $35.04 |
 OUT OF STOCK 2635NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (GR4) 1968-1969 Checker Marathon Base / Town Custom $36.27 |
OUT OF STOCK 3332NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (XR5) 1968-1968 Checker Marathon Town Custom 1968-1970 Checker Marathon Base 1970-1970 Checker Marathon Deluxe $35.99 |
OUT OF STOCK 6945NGK V-Power plugs feature a unique v-cut in the center electrode that directs the spark to the edge of the electrode, helping the spark develop more rapidly, increasing ignitability and reducing quenching.... NGK V-Power Spark Plug Box of 4 (UR45) 1975-1975 Checker Marathon Aerobus / Base / Deluxe 1977-1977 Checker Marathon Base / Deluxe 1979-1982 Checker Marathon Base / Deluxe $35.99 |