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The ECU is the brain of a modern vehicle, and its harness is the nervous system: sensor readings, injector pulses and power feeds all cross this one connection. When an ECU harness fails, the result is limp mode, fault codes or a no-start — often traced back to heat-softened insulation or water intrusion at the connector. The Snowwolf SW-A-04 is engineered for stable, reliable connectivity to engine control units in demanding automotive and motorsport environments.
High-grade bare copper conductors keep power and signal transmission efficient across all 24 circuits. Insulation is XLPE (cross-linked polyethylene) — rated for continuous 105°C operation at 500V, it outperforms standard PVC in engine-bay heat, oil exposure and moisture, which is what makes the harness genuinely waterproof in service. The 24-pin connector seats positively and stays locked against vibration, and the assembly arrives ready to route for fast installation.
Produced in our ISO/TS 16949-certified factory in Dongguan with ROHS & YACE-003 compliance and a 1-year warranty, the SW-A-04 serves automotive ECU and engine control applications — and, with custom length and connectors, model airplane and RC harness projects as well. Wholesale orders start at 100 pieces at $22.80/piece FOB Shenzhen, with 15–25 day delivery and 50,000-piece monthly capacity. Send your inquiry for an OEM/ODM quotation within 24 hours.
✔ Direct ECU Connectivity: 24-pin connector engineered for stable engine control unit connections under vibration.
✔ Superior Conductivity: High-grade bare copper wire ensures efficient power and signal transmission.
✔ XLPE Insulation, 105°C / 500V: Cross-linked polyethylene outperforms standard PVC against engine-bay heat, oil and moisture.
✔ Waterproof Build: Sealed construction keeps the circuit dry in demanding automotive and motorsport environments.
✔ OEM/ODM Customization: Wire length and connector types tailored to specific project requirements.
✔ Wholesale-Ready: MOQ 100 pcs, 15–25 day lead time, 50,000 pcs monthly capacity, private label supported.
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