ICP 40A Contactor for RGX048KRCA0AAA — OEM Part 1176763 | Ships Today

Overview

This is the genuine OEM 40 amp contactor (part number 1176763) for the ICP / Heil / Tempstar RGX048KRCA0AAA system. A contactor is the high-current relay that switches line voltage to the motor and compressor loads when the 24V control coil is energized by the thermostat or control board. Rated at 40 amps with a 24V coil, this contactor handles the inrush and run current of the connected load. Contactors are a common wear item — the contacts pit and burn over thousands of cycles — so a fresh OEM contactor restores clean, reliable switching and eliminates chatter, weak pull-in, and welded-contact failures.

Specifications

Compatibility

Designed as a direct OEM replacement for the ICP-family RGX048KRCA0AAA, also sold by Heil, Tempstar, and Comfortmaker under International Comfort Products. Confirm the 40A rating, 2-pole configuration, and 24V coil against your existing contactor before installing.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter on both line terminals.
2. Access — Remove the electrical/service panel to expose the contactor.
3. Document — Photograph every line, load, and 24V coil wire before disconnecting.
4. Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its bracket.
5. Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo, and torque the lugs snug.
6. Test — Restore power, call for cooling/operation, and confirm a clean, silent pull-in with no chatter.

Signs You Need a Replacement

• Buzzing or chattering contactor that won't pull in cleanly.
• Pitted, burnt, or welded contacts that stick closed.
• System won't start even though the 24V coil is being energized.
• Visible arcing, melted housing, or carbon tracking on the terminals.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.