Insultherm Fiberglass Sleeve — 1/16″ (Size 14)
The Insultherm 1/16″ (Size 14) Fiberglass Sleeve — SKU: FGLG14BK is a high-temperature woven fiberglass harness sleeve for thermal protection of motorsport wiring in extreme-heat engine bay, exhaust-adjacent, and turbo-adjacent harness sections on race cars across Norway, Sweden, and Denmark. Supplied in cut length. Black colour provides a clean finish in engine bay installations.
Size and Application — 1/16″ (Size 14)
At 1/16″ nominal diameter, suited to small wire bundle thermal protection in high-heat engine bay and exhaust-adjacent harness sections. Woven fiberglass withstands sustained high temperatures that would damage polyethylene or PVC sleeving — the correct choice wherever a harness run passes through the highest-heat zones of a race car. Supplied in cut lengths for motorsport harness build and repair.
Woven Fiberglass — High-Temperature and Abrasion Protection
Insultherm fiberglass sleeve resists sustained temperatures beyond the capability of standard expandable or fabric sleeving. The woven construction also resists abrasion — protecting the harness from both thermal damage and mechanical wear in tight engine bay routing. Used by motorsport harness builders across Norway, Sweden, and Denmark for high-heat harness sections.
Technical Specifications — FGLG14BK
- Type: Insultherm Woven Fiberglass Sleeve
- Size: 1/16″ (Size 14)
- Colour: Black
- Material: Woven fiberglass
- Format: cut length
- Application: High-temperature engine bay, exhaust-adjacent, and turbo-adjacent harness sections












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