M22759/16-14 Green/Black Stripe Tefzel Wire – 14 AWG ETFE MIL-SPEC Wire for Earth and Protective Circuit Wiring
The M22759/16-14-50 is a 14 AWG Tefzel ETFE aerospace-specification wire with a green base and black tracer stripe, pre-spooled for professional motorsport harness fabrication. Green-base wiring in the M22759 colour system follows the European automotive wiring standard where green identifies earth, ground, and protective earth conductors – making the green/black stripe a primary candidate for medium-current earth return wiring in professionally built race car and performance vehicle harnesses across Norway, Sweden, and Denmark.
Green Base: The Earth Circuit Identifier Across European Wiring Standards
The choice of green as the earth circuit identifier is not arbitrary – it follows IEC and European automotive wiring standards that designate green/yellow as the protective earth colour, with green alone used for chassis ground and earth return conductors in automotive wiring systems. In a professionally built motorsport harness, applying this convention to Tefzel wire ensures that the harness follows established industry standards that any qualified automotive or motorsport electrician will immediately understand – reducing the risk of wiring errors during modification or repair at any point in the vehicle’s competition life.
Green/Black vs Black/Green: Colour Family Organisation
The distinction between green/black (green base, black stripe) and black/green (black base, green stripe) gives the harness builder two separate circuit identifiers within the earth circuit colour convention – allowing ground conductors to be further subcategorised by circuit function or subsystem group within the overall harness layout without losing the immediately recognisable green earth identification.
Key Specifications
- Specification: MIL-SPEC M22759/16
- Gauge: 14 AWG
- Insulation: ETFE (Tefzel)
- Colour: Green base with Black tracer stripe
- Format: Pre-spooled (PRSP)
- Temperature rating: -65°C to +150°C continuous
- Full chemical resistance to motorsport fluids
Earth Wiring for Professional Motorsport Builds in Scandinavia
Stocked at Arctic Performance Parts for professional harness builders constructing documented earth and ground circuit architecture in Mazda RX-Series, turbocharged race cars, and all competition vehicles throughout Norway, Sweden, and Denmark.












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