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OEM definite-purpose contactors for the ICP / Heil / Tempstar RGS243HSAA0AAAA, covering three factory configurations: part 1171554 (2-pole, 30A, 24V coil), part 1172449 (3-pole, 40A, 24V coil), and part 1183142 (3-pole, 60A, 24V coil). A contactor is the electromagnetic switch that closes line voltage to the load when the 24V control coil is energized. Over time the contacts pit and the coil weakens, producing chatter, failure to pull in, or welded contacts that won't release. Replacing a worn contactor with the correct OEM-rated unit restores reliable switching and prevents nuisance no-run and short-cycle faults.
| Spec | Value |
|---|---|
| Part Numbers | 1171554, 1172449, 1183142 |
| Type | Definite-Purpose Contactor |
| Poles | 2-Pole and 3-Pole options |
| Amp Ratings | 30A, 40A, 60A |
| Coil Voltage | 24 VAC |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Fit | OEM Direct Replacement |
Designed for the ICP-built RGS243HSAA0AAAA and shared across many Heil, Tempstar, and Comfortmaker systems. Match the pole count, amp rating, and 24V coil to your existing contactor before ordering — confirm the stamped part number on the side of the old unit.
Ships same day before 3 PM CST. 30-day returns. National HVAC Parts fitment guarantee on every OEM order.