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Looking for aftermarket parts to modify or upgrade your 1978 Mazda GLC with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.
 IN STOCK 6637The 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 IX Iridium Spark Plug Box of 4 (BPR6EIX) 1977-1978 Mazda GLC DX 1978-1978 Mazda GLC Base / Sport $54.25 |
 OUT OF STOCK 7131NGK standard plugs are constructed for longer life and optimum performance.... NGK Traditional Spark Plug Box of 4 (BPR6ES) 1977-1978 Mazda GLC DX 1978-1978 Mazda GLC Base / Sport $35.09 |
 IN STOCK 6427NGK 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 (BPR6EY) 1977-1978 Mazda GLC DX 1978-1978 Mazda GLC Base / Sport $34.73 |