14040 Thermo-Tec Spark Plug Wire Heat Sleeve 25 Foot Length X 3/8
14040 Thermo-Tec Spark Plug Wire Heat Sleeve 25 Foot Length X 3/8
Out of stock
14040 Thermo-Tec Spark Plug Wire Heat Sleeve 25 Foot Length X 3/8
Upgrade your vehicle's performance with the 14040 Thermo-Tec Spark Plug Wire Heat Sleeve. This high-quality heat sleeve is designed to provide superior protection for your ignition wires, spark plug wires, and even fuel lines.
Key Features:
- High Temperature Resistance: The inside of the sleeve is crafted from braided continuous e-glass insulation, capable of withstanding temperatures up to 1000°F. The silicone outer surface offers protection up to 500°F.
- Prevents Vapor Lock: Protects fuel lines from heat, helping to prevent vapor lock for better engine performance.
- Flexible and Durable: Highly flexible and abrasion-resistant, ensuring easy installation and long-lasting use.
- Maximum Spark Protection: Offers unmatched protection against spark loss, ensuring optimal ignition efficiency.
Specifications:
- Diameter: 3/8 Inch
- Length: 25 Feet
- Material: E-Glass/Silica
- Color: Black
- Warranty: Limited 90 Day Warranty
Whether you're a mechanic or a DIY enthusiast, the 14040 Thermo-Tec Spark Plug Wire Heat Sleeve is an essential accessory for maintaining peak performance in your engine. Don't compromise on quality—choose Thermo-Tec for reliable heat protection.
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Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

