Vibrant Performance 25890 Spark Plug Boot Sleeves, 3/4-Inch Diameter, 8-Inch Long, Set of 4

Protect spark plug boots and ignition components from high engine-bay temperatures with Vibrant Performance 25890 Spark Plug Boot Sleeves. Designed for demanding automotive applications, these sleeves help reduce heat exposure around spark plug wires and boots while supporting reliable ignition performance. The braided fiberglass construction provides a durable barrier that is well suited for performance vehicles, custom builds, race cars, and other applications where thermal protection is important.
The Vibrant Performance 25890 sleeves feature a silver finish and are designed to fit spark plug boots up to 3/4 inch in diameter. Each sleeve is 8 inches long, providing useful coverage along the boot and adjacent plug wire. The flexible braided design makes installation easier around bends and tight engine compartments, while the set of four supports protection for a complete four-cylinder ignition setup or selected components on larger engines.
These spark plug boot insulators are a practical solution for helping protect ignition components from radiant heat generated by exhaust headers, manifolds, and other nearby hot surfaces. They can be used during engine upgrades, ignition-wire replacement, preventative maintenance, or custom fabrication projects. Install the sleeve over the spark plug boot before final connection, ensuring proper clearance from moving parts and direct flame exposure. The Vibrant Performance 25890 set combines straightforward installation with durable heat shielding for a cleaner and more protected engine compartment.

Features:

• Brand: Vibrant Performance

• Part Number: 25890

• Application: Spark plug boot and ignition-wire heat protection

• Construction: Braided fiberglass for durable thermal shielding

• Fitment: Designed for spark plug boots up to 3/4 inch in diameter

• Length: 8 inches per sleeve

• Finish: Silver

• Quantity: Set of 4 sleeves

• Use: Helps reduce heat exposure near exhaust components and other hot engine-bay surfaces