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Looking for aftermarket parts to modify or upgrade your Mercury Cougar 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 3716NGK 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 (TR5-1GP) 1983-1984 Mercury Cougar Base / LS $41.29 |
OUT OF STOCK 7159NGK 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 (TR55-1GP) 1985-1986 Mercury Cougar Base 1985-1992 Mercury Cougar LS 1987-1990 Mercury Cougar XR-7 1993-1997 Mercury Cougar XR-7 $41.29 |
 OUT OF STOCK 5693The 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 BKR4EIX Spark Plugs 1982-1982 Mercury Cougar Base / GS / LS / XR-7 $55.51 |
 OUT OF STOCK 7243The 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 (TR5-1IX) 1983-1984 Mercury Cougar Base / LS $55.51 |
OUT OF STOCK 7316The 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 (TR55-1IX) 1985-1986 Mercury Cougar Base 1985-1992 Mercury Cougar LS 1987-1990 Mercury Cougar XR-7 1993-1997 Mercury Cougar XR-7 $55.51 |
 OUT OF STOCK 2467NGK Laser Platinum Series plugs provide high ignitability and longer service life. Laser welded dual platinum surfaces ensure slow wear rate providing stable idel, superior anti fouling, improved fuel efficiency and lower emissions.... NGK Laser Platinum Spark Plug Box of 4 (PTR5A-13) 1999-2002 Mercury Cougar Base $60.70 |
 OUT OF STOCK 2683NGK 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 (TR55-1) 1985-1986 Mercury Cougar Base 1985-1992 Mercury Cougar LS 1987-1990 Mercury Cougar XR-7 1993-1997 Mercury Cougar XR-7 $36.44 |
OUT OF STOCK 5155NGK 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 (FR4) 1982-1982 Mercury Cougar Base / GS / LS / XR-7 $36.44 |
OUT OF STOCK 7060NGK 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 (TR5-1) 1983-1984 Mercury Cougar Base / LS $36.44 |