Standard Ignition S-1794 HVAC Heater Core Temperature Sensor Connector

HVAC Heater Core Temperature Sensor Connector

Standard Ignition S-1794 is a direct replacement HVAC heater core temperature sensor connector for repairing damaged wiring at the heater core circuit. It uses a 2-wire, 2-terminal female pin socket design with a male connector body and a 13 1/2-inch harness length for a clean service repair.

Built with copper alloy, brass, and phosphor bronze terminals plus a polyamide resin housing, this connector is made for dependable electrical contact and long service life. Standard Ignition S-1794 is a practical choice when you need to replace only the connector instead of the full harness.

Key Features

• Direct replacement HVAC heater core temperature sensor connector
• Male connector with 1 connector cavity and 2 female pin socket terminals
• 2-wire layout with 13 1/2-inch harness length
• Terminal materials include copper alloy, brass, and phosphor bronze
• Polyamide resin housing for durable fit and function
• 100% tested for mechanical and electrical fit, form, and function
• Standard Ignition S-1794 for service repairs on Ford, Lincoln, Mercury, and Mazda applications

Detailed Description

This HVAC electrical connector is built for repair work where the original connector has heat damage, broken terminals, or poor contact at the heater core temperature sensor circuit. Standard Ignition S-1794 supports a cost-effective repair by letting you replace the connector assembly rather than the entire harness. It is a direct replacement part for a wide range of Ford, Lincoln, Mercury, and Mazda vehicles, including applications such as Ford Expedition, Ford Escape, Ford Explorer, Lincoln Navigator, and Mercury Mountaineer.

This part cross-references PEAK 1154 for the same application. It also serves as a replacement option for vehicles that use a 2-terminal female seat belt harness connector in certain listed fitments, including Ford Crown Victoria and Lincoln Navigator applications noted in the catalog data.

What It Helps Repair

• Broken or melted HVAC sensor connector housing
• Loose or corroded terminal connections
• Intermittent heater core temperature sensor signal
• Damaged 2-wire connector pigtail at the HVAC circuit
• Electrical faults caused by worn connector terminals

Installation Notes and Tips

• Verify connector shape, terminal count, and wire count before installation.
• Match the vehicle application carefully, especially on Ford Expedition, Ford Escape, Ford Explorer, and Lincoln Navigator models.
• Inspect the mating sensor and surrounding harness for heat damage or corrosion before connecting the new pigtail.
• Use proper terminal crimping and sealing practices to maintain electrical integrity.
• Confirm fitment against the catalog notes for model-year-specific applications such as 2004 Ford Explorer from 9/04 and 2004 Mercury Mountaineer to 5/04 or from 5/04.

Quality Assurance

Standard Ignition states that its electrical connectors are 100% tested for proper mechanical and electrical fit, form, and function. The connector is built with high-grade terminal metals and a polyamide resin housing to support consistent performance in HVAC repair service.

Compatible Vehicles

• Fits 2009-2014 Ford Expedition
• Fits 2010-2012 Ford Escape
• Fits 2003-2006 Ford Escape
• Fits 2011-2012 Ford Flex
• Fits 2009 Ford Flex
• Fits 2001-2010 Ford Explorer
• Fits 2009-2010 Ford F-150
• Fits 2007-2010 Ford F-250 Super Duty
• Fits 2008-2010 Ford F-350 Super Duty
• Fits 2005-2010 Ford Taurus
• Fits 2005-2007 Ford Five Hundred
• Fits 2005-2007 Ford Freestyle
• Fits 2007 Ford Ranger
• Fits 2005-2006 Ford GT
• Fits 2001-2005 Ford Explorer Sport Trac
• Fits 2002-2005 Ford Thunderbird
• Fits 2004 Ford Explorer, from 9/04
• Fits 2009-2014 Lincoln Navigator
• Fits 2011-2012 Lincoln MKT
• Fits 2003-2011 Lincoln Town Car
• Fits 2010 Lincoln Mark LT
• Fits 2009 Lincoln MKS
• Fits 2003-2009 Lincoln Navigator
• Fits 2003-2005 Lincoln Aviator
• Fits 2000-2006 Lincoln LS
• Fits 2005-2010 Mercury Grand Marquis
• Fits 2001-2010 Mercury Mountaineer
• Fits 2008-2009 Mercury Sable
• Fits 2005 Mercury Sable
• Fits 2005-2007 Mercury Mariner
• Fits 2005-2007 Mercury Montego
• Fits 2004 Mercury Mountaineer, to 5/04
• Fits 2004 Mercury Mountaineer, from 5/04
• Fits 2001-2006 Mazda Tribute
• Fits 2001-2002 Ford Escape