CNC Aluminum Spark Plug Covers for Harley Sportster & Evo | Mactions

Give your engine a clean look with precision CNC Spark Plug Covers. Machined from high-grade aluminum, they sit perfectly over cylinder head bolts to hide exposed hardware. The sleek dome shape integrates seamlessly with engine fins, delivering a subtle, high-quality custom touch.

Built for air-cooled V-twins, these CNC aluminum covers withstand extreme heat cycles without warping or degrading. A secure side set-screw design keeps them locked down tight against heavy highway vibrations—a robust engineering solution for detail-oriented riders.

Available in red, purple, blue, and brass anodized finishes, this four-piece kit seamlessly complements your custom build. Installation takes just minutes with the included hex wrench, securing long-lasting, clean style.

SPECIFICATION

Material: Precision CNC-machined aluminum
Outer Diameter: 28 mm (1.1 inches)
Inner Hole Diameter: 15 mm (0.591 inches)
Height: 18 mm (0.709 inches)
Available Colors: Red, Purple, Blue, Brass
Package Includes: 4 x Spark Plug Head Bolt Covers, 1 x Allen Key

FITMENT

Fit for Harley all Twin Cam models 1999-Later
All Big Twin 1340 Evo Models 1985-1999
All Sportster models 1986-Later