Cylinder Head Gasket Kit, 3-7/8" -3.937"

• 1999-2017 Big Twins and S&S® T-Series Engines

• 3-7/8", 3.927" or 3.937" Bore
• .045" Multi-Layered Steel Head Gasket
• Viton O-ring base seal
• Includes two of each: Head, Base o-ring, & Tapered Exhaust Gaskets

Also works with Twin-Cooled models.