AUTOLITE 2103-0414 XS3923 Xtreme Sport Spark Plug Spark Plug - XS3923 Inc tested for 10

tested for 10

Installation does not require the removal of the rocker boxes

1999-2006 Harley-Davidson 883 Custom EFI XLC 1999-2000 Harley-Davidson Dyna Convertible FXDS-CONV 1999-2017 Harley-Davidson Dyna Low Rider FXDL 1999-2009

pulleys may not be interchanged

AUTOLITE 2103-0414 XS3923 Xtreme Sport Spark Plug Spark Plug - XS3923 Inc tested for 10Features More focused ignition to prevent fouling than leading standard plug . 6mm finewire design with Sport V trim ground electrode engineered to offer improved ignitability and durability over a standard plug Up to 26% quicker starts than leading standard plug More horsepower and better fuel efficiency than standard plug Meets or exceeds OEM design Specs Center Electrode Projection Projected Terminal Configuration Threaded Stud Units Each Riding