4242  Butt Connector 10-12 gauge Pkg. Qty.: 25

4242 Butt Connector 10-12 gauge Pkg. Qty.: 25

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4242  Butt Connector 10-12 gauge Pkg. Qty.: 25

Molex high heat solderless coupler withstands temperatures up to 900 deg F. Wire gauge 12-10. Constructed of nickel-plated steel alloy. Designed for furnaces and other high temperature applications. Sold as package of 25

Wire Gauge: 12–10 AWG Type: High‑Heat Butt Connector (solderless coupler) Temperature Rating: Up to 900°F Material: Nickel‑plated steel alloy Package Qty: 25 Brand: Molex (per your listing) Source: Product page in your active tab

What it’s used for

This is the workhorse high‑temp splice for heavier HVAC control and heat‑circuit wiring:

  • Electric heat kits

  • Sequencer wiring

  • Limit circuits

  • Blower heat feeds

  • Gas valve wiring

  • Any high‑temp 12–10 AWG splice inside a furnace


🔄 Cross‑Reference (High‑Heat Butt Connector, 12–10 AWG)

Brand Part Number Notes
Molex 19006‑0033 High‑temp butt splice, 12–10 AWG
DiversiTech 4242 High‑heat butt connector, 12–10 AWG
Johnstone Supply THTB‑12‑10 High‑heat butt splice
HVACpartstore (Your SKU) 192030399 25‑pack, high‑heat, 12–10 AWG