Ignition wires routed near headers, exhaust manifolds, or turbos absorb radiant heat that degrades insulation, causes resistance spikes, and eventually produces misfires. Heatshield Products HP Color Sleeve wraps those wires in a flexible, expandable braided sleeve rated to 1,100°F continuous and 2,000°F intermittent, cutting radiant heat transfer by up to 60 percent before it reaches the wire jacket.
Expandable weave for clean, tool-free installation. The 5/16-inch inner diameter sleeve compresses to open wider, slides over terminals and end caps without cutting or splicing, then stretches back to grip the wire snugly. Each 25-foot roll includes 16 heat-shrink end caps to seal the terminations and keep the finished install looking professional.
Sized for standard 8 mm ignition wires. The sleeve fits the most common spark plug wire diameter used across a wide range of domestic and import performance applications. The special weave expands up to 15 percent over terminals, so even bulky plug boots pass through without forcing.
Five color options for a custom engine bay appearance. Available in red, blue, yellow, black, and tan, the sleeve adds a finished, organized look alongside its thermal protection. Each color option ships as a full 25-foot roll, providing enough material to cover a complete set of plug wires with footage left over for fuel lines or brake lines near heat sources.
Product Benefits
- Continuous Heat Rating: Protects to 1,100°F (593°C) for sustained heat exposure near exhaust components.
- Intermittent Heat Rating: Handles spikes up to 2,000°F (1,093°C) for proximity to headers or open exhaust.
- Radiant Heat Reduction: Blocks up to 60 percent of radiant heat reaching the covered wire or line.
- Expandable Design: Sleeve opens over terminals and returns to 5/16-inch ID without tools or cutting.
- 16 Heat-Shrink End Caps Included: Seals both ends of each wire sleeve for a clean, secure termination.
- Misfire Prevention: Shields ignition wires from heat-induced resistance buildup and insulation breakdown.
- Multi-Application Use: Suitable for spark plug wires, fuel lines, and brake lines routed near heat sources.
- Made in the USA: Manufactured domestically by Heatshield Products.
About Heatshield Products: Heatshield Products designs and manufactures thermal management solutions for automotive, powersports, and industrial applications from its facility in the United States. The company's catalog covers heat sleeving, wraps, shields, and coatings engineered to reduce underhood temperatures and protect components from radiant and conductive heat damage.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
