Looking for aftermarket parts to modify or upgrade your 1973 Ski-Doo TNT 340 with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

IN STOCK 5044The 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 Spark Plug Box of 4 (BR8EIX) 1973-1977 Ski-Doo TNT 340 Base $55.51 |

OUT OF STOCK 5687The 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 (BR9HIX) 1973-1973 Ski-Doo TNT 340 Base $55.51 |

IN STOCK - LOW 5422NGK standard plugs are constructed for longer life and optimum performance.... NGK Nickel Spark Plug Box of 4 (BR8ES) 1973-1977 Ski-Doo TNT 340 Base $36.23 |

IN STOCK - LOW 4522NGK standard plugs are constructed for longer life and optimum performance.... NGK Standard Spark Plug Box of 10 (BR9HS) 1973-1973 Ski-Doo TNT 340 Base $52.62 |