DEI numbered wire marker set, eight black Mil-Spec heat-shrink tubes printed 1 through 8 in high-visibility oil- and chemical-resistant white ink, for labeling spark plug / ignition wires. The 3:1 shrink ratio slides over plug-boot ends and shrinks tight to the wire; the thick-wall, flame-retardant tubing handles under-hood heat (operating -67°F to 275°F, 394°F short-duration).
Specifications
| Type | Numbered wire markers (heat-shrink) |
| Quantity | 8-piece set (numbered 1-8) |
| Material | Mil-Spec DTL-23053/5C heat-shrink, flame retardant |
| Shrink ratio | 3:1 |
| Ink | High-visibility white, oil & chemical resistant |
| Temp range | -67°F to 275°F (394°F short) |
| Color | Black |
| Fitment | Universal |
Documents: Installation Instructions (PDF)
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