Katech Spark Plug Wire Insulators

Katech Spark Plug Wire Insulators

Eight Flexible Fiberglass Insulators for Spark Plug Boot and Wire Heat Protection.

The Katech Spark Plug Wire Insulator Set of 8 provides an added layer of thermal protection for compatible spark plug boots and wires exposed to elevated exhaust temperatures. The package includes eight insulators for applications requiring protection at eight spark plug wire locations.

Constructed from flexible knitted E-glass fiberglass, each insulator slides over a compatible spark plug boot and wire. The sleeves help protect against exhaust heat in performance applications with long-tube headers, turbocharger systems, or other configurations that place ignition wires near hot components.

Set of Eight: Each purchase includes eight Katech Spark Plug Wire Insulators. Spark plug wires are not included.

Features & Benefits

• Includes Eight Spark Plug Wire Insulators
• Provides Thermal Protection for Compatible Spark Plug Boots and Wires
• Rated for Temperatures up to 1,200°F
• Helps Protect Against Radiant and Conductive Exhaust Heat
• Helps Reduce the Risk of Heat Damage to Spark Plug Boots and Wires
• Knitted E-Glass Fiberglass Construction
• Flexible Single-Wall Design Conforms Around Irregular Surfaces
• Large-Diameter Design Accommodates Compatible Performance Spark Plug Boots
• Slide-On Installation
• Suitable for Compatible Street, Track, and Racing Applications

Technical Specifications

• Product Type: Spark Plug Wire Insulator Set
• Quantity: Eight Insulators
• Material: Knitted E-Glass Fiberglass
• Construction: Flexible Single-Wall
• Maximum Temperature Rating: Up to 1,200°F
• Installation Method: Slide-On
• Application: Compatible Spark Plug Boots and Wires

What's Included

• Eight Katech Spark Plug Wire Insulators

Spark plug wires and boots are not included.

Vehicle & Engine Fitment

The Katech Spark Plug Wire Insulator Set of 8 can be used on engine combinations with compatible spark plug boots and wires. Fitment depends on boot dimensions, wire configuration, sleeve coverage, and available clearance.

Representative Engine Applications:

• GM Gen III and Gen IV LS-Based Engines
• GM Gen V LT-Based Engines with Compatible Spark Plug Wires
• LS1, LS2, LS3, LS6, LS7, LS9, and LSA Engine Combinations
• LT1, LT2, LT4, and LT5 Engine Combinations
• RHS LS-Based Engine Builds
• Gen III HEMI Applications Using Compatible Spark Plug Wires and Boots
• Compatible V8 Truck, SUV, Custom, and Racing Engine Applications

Quantity Note: Eight insulators provide protection for eight compatible spark plug wire locations. Confirm the number of locations requiring protection on your engine; some ignition arrangements may require a different quantity.

Important Installation Notes

• Verify Spark Plug Boot Diameter, Insulator Length, and Installation Clearance Before Ordering
• Install Only Over Undamaged Spark Plug Boots and Wires
• Position Each Insulator to Cover the Area Requiring Heat Protection
• Maintain Clearance from Exhaust Components Wherever Possible
• Verify That the Insulators Do Not Interfere with Spark Plug Connections or Nearby Components
• Inspect Periodically for Heat Damage, Abrasion, or Deterioration

Heat protection sleeves supplement proper wire routing and clearance. They do not guarantee protection under every operating condition or repair existing ignition wire damage.

Why Choose Katech

Protecting ignition wiring is an important part of preparing a performance engine for its operating environment. The Katech Spark Plug Wire Insulator Set of 8 packages flexible fiberglass heat protection together for eight compatible wire locations, making it convenient to address multiple exposed boots and wires during installation or service.

For application and fitment questions, contact Katech Technical Sales at 586-791-4120.