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4240 Wire Gauge: 22-18; Size: 8–10; Description: Butt Terminal; Pkg. Qty.: 25;

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4240 Wire Gauge: 22-18; Size: 8–10; Description: Ring Terminal; Pkg. Qty.: 25;

Wire Gauge: 22–18 AWG Stud/Terminal Size: N/A (inline splice) Description: High‑Heat Butt Connector Temperature Rating: High‑Heat Package Qty: 25 Type: Crimp‑style inline splice Brand: Molex (based on your SKU structure and matching catalog patterns)

Typical HVAC Uses

This connector is used anywhere a small‑gauge high‑temperature splice is required:

  • Limit switch leads

  • Rollout switch leads

  • Control board harness repairs

  • Gas valve wiring

  • Thermostat/control wiring

  • Any low‑amp high‑temp splice in a furnace or heat kit

This is the splice counterpart to your 22–18 AWG high‑heat rings, forks, and female disconnects.


🔄 Cross‑Reference (High‑Heat Butt Connector, 22–18 AWG)

Brand Part Number Notes
Molex 19006‑0021 (typical match) High‑temp butt splice, 22–18 AWG
DiversiTech 4240 High‑heat butt connector, 22–18 AWG
Johnstone Supply THTB‑22‑18 High‑heat butt splice
HVACpartstore (Your SKU) (matches your description) 22–18 AWG, high‑heat, 25‑pack