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.

JEEP® JK Header Wrap & Boot Kit

JEEP® JK Header Wrap & Boot Kit - 010136 - Design Engineering Inc

Includes Two 25’ rolls of Titanium Exhaust Wrap, Eight 9” Stainless Positive Locking Ties, Four 14” Stainless Positive Locking Ties and Six 8” Titanium Spark Plug Boots. Design to help prevent plug wire and boot melting when installing shorty headers on your Jeep JK with V6 engine. The Jeep JK has very little space for the spark plug wires
once the headers are installed making this a must have kit.

  • 2007-2011 Jeep JK
  • Includes everything needed for a typical set of shorty headers
  • Withstands extreme temperatures
  • Resists solvents, oils, fuel, acids & chemical spills
  • Reduces underhood temperatures



Heat Shrink Numbered Wire Marker Set

DEI Heat Shrink Numbered Wire Marker Set - 010849
DEI Heat Shrink Numbered Wire Marker Set - Packaging - 010849

Make labeling your plug wires simple and easy. DEI’s numbered wire marker sets are made
from high temperature Mil Spec black heat shrink tubes. They are tough enough to handle high
under hood temperatures and are easy to install. High shrink ratio of 3 to 1 allows our markers
to slide over plug boot ends and still shrink tight to the wires. Sets are numbered 1 through 8 in
a high visibility white ink that is oil and chemical resistant.

  • 3-1 Shrink ratio
  • 8-Piece Set









Silicone Protect-A-Wire Kit

Silicone Protect-A-Wire Kit - 010636 - Design Engineering Inc

25 ft. of Black Silicone with numbered shrink tube ends to label plug wires to the correct cylinder.

Kit includes:

  • 25’ of 3/8” id Silicone covered Annealed Fiberglass Sleeve
  • 8 DEI branded high heat shrink tube ends
  • 8 Numbered 1-8 high temp shrink tube ends

Annealed Fiberglass sleeve is coated with Silicone providing excellent resistance to abrasion, fraying and punctures. Resistant to chemicals and extremely flexible, heat resistant to 400˚F makes it the perfect choice to cover and protect your spark plug wires. High dielectric strength for high voltage coils and ignition systems.


Titanium Protect-A-Sleeve with LR Technology

DEI Titanium Protect-A-Sleeve - 010475 - Design Engineering Inc

DEI’s new Titanium Protect-A-Sleeve™ with LR Technology™ offers the best possible sleeve protection on the market today. Developed specifically for any application where extreme high heat is present, these Titanium™ sleeves will protect wires, lines and cables when exposed up to 1800°F direct heat/2500°F radiant.

Developed with DEI’s proprietary LR Technology, these high temperature rated sleeves provide superior thermal protection for street vehicles or race engines, protecting fuel, oil lines, spark plug and electrical wires from direct or under hood radiant heat. The ½” ID sleeves will fit many of today’s larger diameter spark plug wires for protection against hot exhaust manifolds and headers. Water and heat resistant, they are also ideal for Powersports – ATV/UTV, motorcycle, personal watercraft, snowmobiles, and marine use.


Protect-A-Boot Sleeve

Protect-A-Boot Sleeve - Silver - 010551 - Design Engineering Inc

Superior Protection for Extreme Angled Plug Wire Boots

DEI Protect-A-Boot Sleeves are uniquely designed to protect spark plug boots & wires against the harmful effects of direct and continuous heat - up to 1200°F. Continued exposure to extreme heat geneated from the engine block, exhaust manifold and headers can cause burn through, hardening or cracking of the spark plug wires and boots.

Like the original Protect-A-Boots product, the sleeves offer the same heat protection and double wall construction for added strength and durability, yet are designed to provide a universal fit for extreme angled, oversized, or rigid boots like ceramic ignition wire ends. The 1-1/4" I.D. at both ends and pliable construction allow the sleeves to fit multiple angled spark plug boots.

Otherwise the material is the same as DEI's popular Protect-A-Boots that are made from a tightly woven high temperature resistant glass fiber material.