Ignition Wire Protection

DEI offers many wire protection options for auto, marine, and more. This includes the Protect-a-Series which was designed to prevent spark plug wires from burn through and arcing, and offers complete heat protection for your spark plug wires in colorful style.

Heat Shrink with Adhesive

Heat Shrink with Adhesive - 010858 - Design Engineering Inc

Shrink tube with adhesive is a flexible, flame-retardant heat shrinkable polyolefin tubing, with a thick wall modified adhesive which melts and flows, encapsilating and sealing components inside. Recommended for applications that require water proofing for light cable and wire harnesses and protection of connectors. Operating temperature is -67 F to 257 F

  • Great for water proofing wires and connectors
  • 19mm inside diameter shrinks to 6mm
  • High grade military spec




EXO Sleeve

DEI EXO Sleeve - 010872 - Design Engineering Inc
DEI EXO Sleeve - 010872 - Design Engineering IncDEI EXO Sleeve - 010872 - Design Engineering IncDEI EXO Sleeve - 010872 - Design Engineering Inc

Constructed from a high temperature resistant braided glass material, woven into a sleeve and heavily coated with 100% silicone rubber with 304 stainless mesh outer covering, EXO Sleeve provides the ultimate in heat insulation and protection from direct heat up to 500°F.

  • Silicone glass sleeve (DEI Fire Sleeve) surrounded by 304 stainless mesh outer covering
  • Allows direct contact to heat source
  • Highly abrasion resistant
  • Provides air flow around sleeve
  • Includes a 16" length of Fire Tape
  • Perfect for Insulates wiring, hoses, oil / brake / transmission lines & more
  • Protects from burns during under hood repairs and maintenance
  • Withstands 500°F continuous / 2000°F intermittent heat
  • Available in 3/8" and 1" I.D.




Easy Loom - Split Wire Sleeve

Easy Loom Split Wire Sleeve - 010650 - Design Engineering Inc
Easy Loom Split Wire Sleeving - 010650 - Design Engineering IncEasy Loom Split Wire Sleeving - 010650 - Design Engineering Inc

Protective Easy Loom Split Sleeves offer a clean, classy way to protect exposed wires, cables and hoses on trucks, SUV's and powersport vehicles including ATVs and UTVs. Superior in style and function to simple plastic tubing, DEI's Split Sleeve adds a superior level of protection to sensitive wires cables and hoses exposed to abrasion or the elements; all with a clean, classy look.

  • Protects against abrasion, chemicals & the elements
  • Clean, classy way to protect wires, hoses & cables
  • Superior style & function vs. plastic tubing
  • Split design makes installation easy
  • No need to disconnect wires
  • Available in multiple diameters

EXO Series™ Protect-A-Boots

DEI EXO Series™ Protect-A-Boots - 010088 - Design Engineering Inc
DEI EXO Series™ Protect-A-Boots - 010087 - Design Engineering IncDEI EXO Series™ Protect-A-Boot Close-Up - 010088

EXO Series spark plug boots are designed to withstand extreme racing and high heat environments. The outer exoskeleton stainless mesh prevents direct contact with the dual layer silica boot underneath. This combination of silica/air gap and stainless steel provides outstanding heat protection for your plug boots and wires. Available in 2, 4 and 8 packs so you can protect trouble areas or your complete wire set.






Protect-A-Wire V8 Kit - Titanium

Titanium Protect-A-Wire V8 Kit - 010603 - Design Engineering

We have taken our Titanium LR technology and made it into the best protection sleeve on the market. Capable of withstanding temperatures up to 1800°F direct heat and 2500°F radiant, Chemical and oil resistant, it provides the ultimate protection for your ignition wires.

Kit includes:

  • 8 DEI and 16 1-8 numbered heat shrink tubes
  • 25 feet of Titanium sleeving.

The ½” ID will fit larger spark plug wires and protect them from hot exhaust manifolds and headers.

Includes hi-temp shrink tubes & wire markers to seal ends of sleeve.