ACCEL Performance U-Groove Spark Plug - 0437S-4 - ACL0437S-4
66-71 CJ;4 and 6 cylinder engines;Shorty Plug For Headers;Four pack; California Residents: WARNING ACCEL U-Groove performance spark plugs produce a larger spark for more power at high RPMs. Improves throttle response and fuel economy, less fouling. Purified Alumina insulator prevents arcing. Machine rolled threads protect heads.