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.

Aluminized Plug Wire Sheath

$10.89
DEI Aluminized Plug Wire Sheath - 010409 - Design Engineering Inc

Aluminized Plug Wire Sheaths are constructed from high-temperature rated glass fiber material bonded to a heat reflective aluminized material. Plug Wire Sheaths are an inexpensive alternative for protecting specific areas on both ignition wire and boot locations from damaging heat generating sources..

  • Capable of withstanding 2000°F radiant heat
  • Inexpensive alternative for protecting ignition wires and boots
  • Other uses include protecting electrical wiring, harnesses, hoses, cables & more
  • Easy to install
  • 3/4" diameter x 6" long
  • 4 to a pack
$10.89

Protect-A-Wire

$11.79
DEI Protect-A-Wire™ - 010601 - Design Engineering Inc

Protect expensive spark plug wire sets from potential burning, cracking, and hardening typically caused by severe under hood heat. Easily installs on wire by removing distributor boot and sliding Protect-A-Wire over spark plug wire.

  • Constructed from high temp resistant glass fiber material
  • Withstands 500°F continuous 1200°F radiant heat
  • Four vivid colors; Silver, Black, Red & Blue
  • Available in 2 and 8 cylinder kits
  • Protects electrical wiring, speedometer cable, hoses & more up to 10mm diameter
  • Includes DEI Hi-Temp Shrink Tubes

2 Cylinder Kit Contains:
7 FT. of Line Sleeving, 6 Hi-Temp Shrink Tubes

8 Cylinder Kit Contains:
25 FT. of Line Sleeving, 25 Hi-Temp Shrink Tubes

Installation Info

$11.79

Choose the color & type Protect-A-Wire

Spark Plug Wire / Boot Shrink Tubes

$18.08
DEI Spark Plug Wire / Boot Shrink Tubes - 010800 -  Design Engineering Inc

Perfect for sealing spark plug wires to boots at each end forming a water-tight weatherproof seal. With a 3 to 1 shrink ratio, shrink tubes can be used to bundle wires as an alternative to tape or plastic ties.

  • 3:1 shrink ratio
  • Offers a clean & professional under hood look
  • 25 tubes to a package
  • Easy to install with ordinary heat gun
  • Available in Gray, Black, Red & Blue

Product FAQ

$18.08

Choose the size shrink tube necessary

Hi-Temp Shrink Tubes - Wire Insulation

$12.16
Hi-Temp Shrink Tubes - 010832 - Design Engineering Inc

Excellent water-tight wire protection for automotive, marine use, and more!

Professional grade military spec flexible polyolefin tubing provides excellent electrical insulation, protection from dirt, dust, solvents, and foreign materials as well as providing strain relief. Over expanded tubing easily fits over the end of wires and connectors and shrinks down to 33% of it’s original diameter for a snug water-tight protective seal without a reduction in tube length.

Hi-Temp Shrink Tubes can be used to insulate wires, wire splicing, connections, terminals and meets the material functional properties of Military Spec DTL-23053/5C.

$12.16

Choose the size shrink tube necessary

Protect-A-Boot and Wire Kits

$26.37
DEI Protect-A-Boot™ and Wire Kits - 010701 - Design Engineering Inc

Each kit includes everything needed to protect spark plug boots and wires from harmful under hood heat. Color matched Protect-A-Boots™, Protect-A-Wire™ and Hi-Temp Shrink Tubes are included for a professional finished look.

2 Cylinder kit includes:

  • 7 feet of Protect-A-Wire sleeving
  • 6 Hi-Temp Shrink Tubes
  • 2 Protect-A-Boots
  • Available in 4 colors

8 Cylinder kit includes:

  • 25 Feet of Protect-A-Wire sleeving
  • 25 Hi-Temp Shrink Tubes
  • 8 Protect-A-Boots
  • Available in 4 colors
$26.37

Choose the type of kit