DEI Protect-A-Boot XL - 8" Long - Titanium (Set of 6) RS004C15 From the one-piece sealed housing

From the one-piece sealed housing with a tire tread top

They simplify measuring piston-to-valve clearance and rocker ratio

1-3/8 in Tall

Jeep Cherokee XJ 1984-2001

350" Gasket BoreSince 1989

DEI Protect-A-Boot XL - 8" Long - Titanium (Set of 6) RS004C15 From the one-piece sealed housingProtect A Boot Titanium Protect A Boots XL are the latest in thermal protection technology for spark plug boot protectors. Developed from a unique material mined from lava rock stranded and woven into a proprietary weave for added durability and strength yet is pliable enough to provide a universal fit for straight or angled boots. Titanium Protect A Boots XL are naturally resistant to heat, chemicals, abrasions and contaminants, and are engineered to