Standard Ignition S2451 HVAC Blower Motor Resistor Connector - Front

Brand Standard Ignition S2451
Position Front
Fits Chevrolet, INFINITI, Mercury, Nissan, and Subaru · 126 vehicles

Blade terminals. Four female terminals provide a secure electrical connection.

Weatherproof sealed. Helps protect the connector from moisture intrusion.

Rectangular connector. Compact 1-inch housing fits neatly in tight spaces.

Cross-references Standard Ignition S2451, CONB11263 and EC2352 for the same application. See all 4.

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HVAC Blower Motor Resistor Connector for Nissan and Subaru

Standard Ignition S2451 is an HVAC blower motor resistor connector built for repair work on manual climate control systems. It uses a rectangular connector housing with a weatherproof sealed design, 14-gauge wiring, and a 320 mm harness length for a direct electrical service connection.

Compatible with a wide range of Nissan, INFINITI, Chevrolet, Mercury, and Subaru applications, this connector is commonly used on vehicles such as the Nissan Altima, Sentra, Frontier, Pathfinder, Xterra, and Versa. The S2451 part number is also referenced in cross applications for service replacement needs.

Key Features

  • Standard Ignition S2451 HVAC blower motor resistor connector
  • Rectangular connector shape with male housing and female blade terminals
  • 4-terminal, 4-wire design with 14 ga. wire gauge
  • 320 mm harness length for service routing
  • Weatherproof sealed construction
  • Compatible with manual AC and manual control HVAC systems where listed

Detailed Product Overview

This HVAC blower motor resistor connector is used to restore the electrical connection between the blower motor resistor and the vehicle harness. Standard Ignition S2451 is specified for applications across 1991-2021 model years, including Nissan NV200, Versa, Versa Note, Altima, Sentra, Frontier, Pathfinder, Xterra, Maxima, Quest, 200SX, 240SX, NX, and select INFINITI G20, Chevrolet City Express, Chevrolet Spark, Mercury Villager, and Subaru Impreza vehicles. Fitment includes notes for manual AC or manual control systems on certain Nissan Altima, Pathfinder, Pathfinder Armada, and Maxima applications.

This part cross-references CONB11263 and EC2352 for the same application. When replacing a damaged HVAC blower motor resistor connector, S2451 helps maintain a secure electrical interface at the resistor circuit and supports proper blower speed control in the listed vehicles.

What This Part Helps Fix

  • Intermittent blower motor operation
  • Burned, melted, or heat-damaged resistor connector terminals
  • Loose or corroded HVAC electrical connections
  • Loss of blower speed control on manual HVAC systems
  • Connector damage from age, vibration, or previous repair work

Installation Notes and Tips

Verify the original connector shape, terminal count, and wire gauge before installation. This connector is not weather resistant, but it is weatherproof sealed, so inspect the mating resistor and harness side for heat damage, corrosion, or terminal spread before reconnecting. Confirm manual AC or manual control requirements on listed Nissan applications, especially on Altima, Pathfinder, Pathfinder Armada, and Maxima models.

Quality Assurance

Standard Ignition supplies service electrical components for automotive repair applications, and S2451 is built to match the connector style and terminal layout used in the listed HVAC blower motor resistor applications.

This part fits 126 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2021NissanNV200———Front—
2020NissanNV200———Front—
2019NissanNV200———Front—
2019NissanVersa———N/A—
2019NissanVersa Note———N/A—
2018ChevroletCity Express———N/A—
2018ChevroletSpark———N/A—
2018NissanNV200———Front—
2018NissanVersa———N/A—
2018NissanVersa Note———N/A—
2017ChevroletCity Express———N/A—
2017ChevroletSpark———N/A—
2017NissanNV200———Front—
2017NissanVersa———N/A—
2017NissanVersa Note———N/A—
2016ChevroletCity Express———N/A—
2016ChevroletSpark———N/A—
2016NissanNV200———Front—
2016NissanVersa———N/A—
2016NissanVersa Note———N/A—
2015ChevroletCity Express———N/A—
2015NissanNV200———Front—
2015NissanVersa———N/A—
2015NissanVersa Note———N/A—
2014NissanNV200———Front—
2014NissanVersa———N/A—
2014NissanVersa Note———N/A—
2013NissanNV200———Front—
2013NissanVersa———N/A—
2012NissanVersa—1.6LL4N/A—
2007SubaruImprezaManual——N/A—
2006NissanAltima———N/Aw/ Manual AC
2006NissanSentra———N/A—
2006SubaruImprezaManual——N/A—
2005NissanAltima———N/Aw/ Manual AC
2005NissanSentra———N/A—
2005SubaruImprezaManual——N/A—
2004NissanAltima———N/Aw/ Manual AC
2004NissanFrontier———N/A—
2004NissanPathfinder———N/Aw/ Manual Control
2004NissanPathfinder Armada———N/Aw/ Manual Control
2004NissanSentra———N/A—
2004NissanXterra———N/A—
2004SubaruImpreza———N/A—
2003NissanAltima———N/Aw/ Manual AC
2003NissanFrontier———N/A—
2003NissanMaxima———N/Aw/ Manual AC
2003NissanPathfinder———N/Aw/ Manual Control
2003NissanSentra———N/A—
2003NissanXterra———N/A—
2003SubaruImpreza———N/A—
2002INFINITIG20———N/A—
2002MercuryVillager———Front—
2002NissanAltima———N/Aw/ Manual AC
2002NissanFrontier———N/A—
2002NissanMaxima———N/Aw/ Manual AC
2002NissanPathfinder———N/Aw/ Manual Control
2002NissanQuest———N/A—
2002NissanSentra———N/A—
2002NissanXterra———N/A—
2002SubaruImpreza———N/A—
2001INFINITIG20———N/A—
2001MercuryVillager———Front—
2001NissanAltima———N/A—
2001NissanFrontier———N/A—
2001NissanMaxima———N/Aw/ Manual AC
2001NissanPathfinder———N/Aw/ Manual Control
2001NissanQuest———N/A—
2001NissanSentra———N/A—
2001NissanXterra———N/A—
2001SubaruImpreza———N/A—
2000INFINITIG20———N/A—
2000MercuryVillager———Front—
2000NissanAltima———N/A—
2000NissanFrontier———N/A—
2000NissanMaxima———N/Aw/ Manual AC
2000NissanPathfinder———N/Aw/ Manual Control
2000NissanQuest———N/A—
2000NissanSentra———N/A—
2000NissanXterra———N/A—
1999INFINITIG20———N/A—
1999MercuryVillager———Front—
1999NissanAltima———N/A—
1999NissanFrontier———N/A—
1999NissanMaxima———N/Aw/ Manual AC
1999NissanPathfinder———N/ANot compatible with automatic AC systems.
1999NissanSentra———N/A—
1998Nissan200SX———N/A—
1998Nissan240SX———N/A—
1998NissanAltima———N/A—
1998NissanFrontier———N/A—
1998NissanMaxima———N/Aw/ Manual AC
1998NissanPathfinder———N/ANot compatible with automatic AC systems.
1998NissanSentra———N/A—
1997Nissan200SX———N/A—
1997Nissan240SX———N/A—
1997NissanAltima———N/A—
1997NissanMaxima———N/Aw/ Manual AC
1997NissanPathfinder———N/ANot compatible with automatic AC systems.
1997NissanSentra———N/A—
1996INFINITIG20———N/A—
1996Nissan200SX———N/A—
1996Nissan240SX———N/A—
1996NissanAltima———N/A—
1996NissanMaxima———N/Aw/ Manual AC
1996NissanPathfinder———N/ANot compatible with automatic AC systems.
1996NissanSentra———N/A—
1995INFINITIG20———N/A—
1995Nissan200SX———N/A—
1995Nissan240SX———N/A—
1995NissanAltima———N/A—
1995NissanMaxima———N/Aw/ Manual AC
1995NissanSentra———N/A—
1994INFINITIG20———N/A—
1994NissanAltima———N/A—
1994NissanSentra———N/A—
1993INFINITIG20———N/A—
1993NissanAltima———N/A—
1993NissanNX———N/A—
1993NissanSentra———N/A—
1992INFINITIG20———N/A—
1992NissanNX———N/A—
1992NissanSentra———N/A—
1991INFINITIG20———N/A—
1991NissanNX———N/A—
1991NissanSentra———N/A—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — S2451CONB11263EC2352PT2436