Accel U-Groove Shorty Performance Header Spark Plugs

These ACCEL U-Groove performance spark plugs produce a larger spark for more power at high rpms.

ACCEL ignition brand U-Groove spark plugs are designed for spark delivery. They produce a larger spark for more power at high RPMs. This plug improves throttle response and fuel economy with less fouling. Purified Alumina insulator prevents arcing. Machine rolled threads protect heads.


The overall length has been reduced 1/4″ to 3/8″ to gain critical air gap space between the spark plug boot ad the exhaust manifold or header tube in the “Shorty” plugs.

This helps :

  • Solve spark plug header clearance problems
  • Ends burning plug boots
  • Eliminates “Dimpling” headers for clearance
  • Improves plug access

P/N 8199 (Pack of 8 0576S)

P/N 0576S (These plugs have a  tapered seat, 14mm thread, .460″. reach, projected) tip.

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