These spark plugs are one of the brand’s most technologically advanced spark plugs ever. With an iridium-enhanced .6 mm fine wire design and patented platinum side wire technology, these spark plugs provide better durability and a more focused ignition for better overall ignitability and optimum performance.

New from AUTOLITE.....

XTREME SPORT IRIDIUM Spark Plug

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TEC # Description
97942 Fits Twin Cam
97940 Fits Evo Big Twin 84-99 & 80" Shovel '79-83
97944 Fits 74" Motors
97948 Fits V-ROD
 
Autolite® XP Extreme Performance Iridium Spark Plugs
TEC # Application Autolite # QTY
97942 Twin Cam 88 Models  1999-2005 XS4164DP Each
Evo Sportster  1988-2003 
Sportster 1100cc 1986-87
 
97940 FL Evo Fuel Injected  1995-99 XS65DP Each
FL Evo 1340 All Models 1984-1999
FX Evo 1340 All Models 1985-2000
FL - Shovel 1340 All Models 1980-81
FL - Shovel 1340 All Models 1978-79
FX - Shovel 1340 All Models 1981-80
FX - Shovel 1340 All Models 1978-79
 FL, FX - Pan &Shovel 1200 All Models 1975-80
 
 
TEC # Autolite #   Application
97918 4164 8 Pack 99-06 Twin Cam 88
97912 4265 8 Pack 80" Evolution
97930 64 8 Pack 80" Evolution (1 Range Colder than 4265)
97916 2585 8 Pack 1982-84 80" FL Shovelhead
97912 4265 8 Pack 1975-80 74" Shovelhead
97920 4275 10 Pack

1948-74 Pan, Shovelhead

97945 MP4275DP2 2 Pack

1948-74 Pan, Shovelhead (Platinum Plug Display 2 Pack)

97918 4164 8 Pack 86-06 XL 883, 1100, 1200cc
97919 4153 10 Pack

86-06 XL 883, 1100, 1200cc Non Resistor & Dyna

97922 4123 8 Pack 79-85 XL 1000cc
97946 MP4316DP2 2 Pack 57-78 XL 1000cc (Platinum Plug Display 2 Pack)
97926 996 8 Pack 57-78 XL 900, 1000cc
97927 4252 10 Pack XR1000 Only
97918 4164 8 Pack 94-05 Buell models
97932 2795 8 Pack

Special 10mm dual plug