Standard Ignition S2978 HVAC Clutch Coil Connector

Name: Standard Ignition S2978 HVAC Clutch Coil Connector
Brand: Standard Ignition
SKU: FBHK-S2978
Price: 30.06 USD
Availability: InStock

194 vehicles fit this part

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: INFINITI and Nissan, 370Z, 720, Altima, Armada, D21, EX35, EX37, Frontier, FX35, FX37, G35, G37, M35, M37, M45, NV2500, NV3500, Pathfinder, Pathfinder Armada, Pickup, Q40, Q60, Q70, Q70L, QX50, QX56, QX70, QX80, Sentra, TITAN, TITAN XD, and Xterra

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HVAC Clutch Coil Connector for Nissan and INFINITI

Standard Ignition S2978 is an HVAC clutch coil connector built for direct electrical repair at the compressor clutch circuit. It uses a rectangular male connector housing with a female blade terminal and 18-gauge, single-wire lead for a clean replacement on select Nissan and INFINITI applications.

Use this connector when servicing air conditioning wiring on vehicles such as the Nissan Armada, TITAN, Pathfinder, and INFINITI QX80, QX56, and G37. Standard Ignition S2978 is a practical choice for restoring a secure connection at the HVAC clutch coil.

Key Features

HVAC clutch coil connector for compressor clutch electrical repair
Rectangular connector shape with male housing and female blade terminal
18 ga. single-wire lead with 16.5 in. harness length
1 in. housing length for compact routing
0-degree bend angle for straightforward wire alignment
Direct-fit style for select Nissan and INFINITI models

Detailed Description

Standard Ignition S2978 is designed for HVAC clutch coil wiring service where the original connector is damaged, heat-affected, or no longer making a reliable contact. The connector uses one female blade terminal in a rectangular housing and a single 18-gauge wire to support a focused repair at the compressor clutch circuit. This part cross-references PT3016 for the same application. It is commonly used on fitments including 2005-2015 Nissan Armada, 2017-2021 Nissan TITAN, 2008-2012 Nissan Pathfinder, 2004-2013 INFINITI QX56, and 2008-2013 INFINITI G37.

What It Helps Fix

Broken or heat-damaged HVAC clutch coil connector
Intermittent compressor clutch engagement caused by poor terminal contact
Corrosion at the original A/C connector
Wiring repair after connector housing cracking or melting
Loss of electrical continuity at the compressor clutch circuit

Installation Notes and Tips

Inspect the compressor clutch wiring before installation and verify the terminal orientation matches the original connector. Confirm the harness route allows the 16.5 in. lead to reach the repair point without strain. For best results, compare the original connector shape, terminal style, and wire gauge before final connection. Compatible With 2017-2024 Nissan Armada, 2014-2022 INFINITI QX80, and 2016-2021 Nissan TITAN XD applications where this connector style is specified.

Quality Assurance

Standard Ignition replacement electrical connectors are built for service work on vehicle HVAC circuits and are backed by the brand’s established aftermarket parts support.

Brand	Standard Ignition
Part Number	S2978
Bend Angle (Deg.)	0
Connector Gender	Male
Connector Quantity	1
Connector Shape	Rectangular
Gauge	18 ga.
Harness Length - inches	16.5"
Housing Length (in)	1
Terminal Gender	Female
Terminal Quantity	1
Terminal Type	Blade
Wire Quantity	1

This part fits 194 vehicles. Search below:

Year	Make	Model	Position
2024	Nissan	Armada	N/A
2023	Nissan	Armada	N/A
2022	INFINITI	QX80	N/A
2022	Nissan	Armada	N/A
2021	INFINITI	QX80	N/A
2021	Nissan	Armada	N/A
2021	Nissan	NV2500	N/A
2021	Nissan	NV3500	N/A
2021	Nissan	TITAN	N/A
2021	Nissan	TITAN XD	N/A
2020	INFINITI	QX80	N/A
2020	Nissan	Armada	N/A
2020	Nissan	NV2500	N/A
2020	Nissan	NV3500	N/A
2020	Nissan	TITAN	N/A
2020	Nissan	TITAN XD	N/A
2019	INFINITI	QX80	N/A
2019	Nissan	Armada	N/A
2019	Nissan	NV2500	N/A
2019	Nissan	NV3500	N/A
2019	Nissan	TITAN	N/A
2019	Nissan	TITAN XD	N/A
2018	INFINITI	Q70L	N/A
2018	INFINITI	QX80	N/A
2018	Nissan	370Z	N/A
2018	Nissan	Armada	N/A
2018	Nissan	NV2500	N/A
2018	Nissan	NV3500	N/A
2018	Nissan	TITAN	N/A
2018	Nissan	TITAN XD	N/A
2017	INFINITI	Q70	N/A
2017	INFINITI	Q70L	N/A
2017	INFINITI	QX50	N/A
2017	INFINITI	QX70	N/A
2017	INFINITI	QX80	N/A
2017	Nissan	370Z	N/A
2017	Nissan	Armada	N/A
2017	Nissan	NV2500	N/A
2017	Nissan	NV3500	N/A
2017	Nissan	TITAN	N/A
2017	Nissan	TITAN XD	N/A
2016	INFINITI	Q70	N/A
2016	INFINITI	Q70L	N/A
2016	INFINITI	QX50	N/A
2016	INFINITI	QX70	N/A
2016	INFINITI	QX80	N/A
2016	Nissan	370Z	N/A
2016	Nissan	NV2500	N/A
2016	Nissan	NV3500	N/A
2016	Nissan	TITAN XD	N/A
2015	INFINITI	Q40	N/A
2015	INFINITI	Q60	N/A
2015	INFINITI	Q70	N/A
2015	INFINITI	QX50	N/A
2015	INFINITI	QX70	N/A
2015	INFINITI	QX80	N/A
2015	Nissan	370Z	N/A
2015	Nissan	Armada	N/A
2015	Nissan	NV2500	N/A
2015	Nissan	NV3500	N/A
2015	Nissan	TITAN	N/A
2014	INFINITI	Q60	N/A
2014	INFINITI	Q70	N/A
2014	INFINITI	QX50	N/A
2014	INFINITI	QX70	N/A
2014	INFINITI	QX80	N/A
2014	Nissan	370Z	N/A
2014	Nissan	Armada	N/A
2014	Nissan	NV2500	N/A
2014	Nissan	NV3500	N/A
2014	Nissan	TITAN	N/A
2013	INFINITI	EX37	N/A
2013	INFINITI	FX37	N/A
2013	INFINITI	G37	N/A
2013	INFINITI	M37	N/A
2013	INFINITI	QX56	N/A
2013	Nissan	370Z	N/A
2013	Nissan	Armada	N/A
2013	Nissan	NV2500	N/A
2013	Nissan	NV3500	N/A
2013	Nissan	TITAN	N/A
2012	INFINITI	EX35	N/A
2012	INFINITI	G37	N/A
2012	INFINITI	M37	N/A
2012	INFINITI	QX56	N/A
2012	Nissan	370Z	N/A
2012	Nissan	Armada	N/A
2012	Nissan	NV2500	N/A
2012	Nissan	NV3500	N/A
2012	Nissan	Pathfinder	N/A
2012	Nissan	TITAN	N/A
2011	INFINITI	EX35	N/A
2011	INFINITI	FX35	N/A
2011	INFINITI	G37	N/A
2011	INFINITI	M37	N/A
2011	INFINITI	QX56	N/A
2011	Nissan	370Z	N/A
2011	Nissan	Armada	N/A
2011	Nissan	Pathfinder	N/A
2011	Nissan	TITAN	N/A
2010	INFINITI	EX35	N/A
2010	INFINITI	FX35	N/A
2010	INFINITI	G37	N/A
2010	INFINITI	M35	N/A
2010	INFINITI	M45	N/A
2010	INFINITI	QX56	N/A
2010	Nissan	370Z	N/A
2010	Nissan	Armada	N/A
2010	Nissan	Pathfinder	N/A
2010	Nissan	Pickup	N/A
2010	Nissan	TITAN	N/A
2009	INFINITI	EX35	N/A
2009	INFINITI	FX35	N/A
2009	INFINITI	G37	N/A
2009	INFINITI	M35	N/A
2009	INFINITI	M45	N/A
2009	INFINITI	QX56	N/A
2009	Nissan	370Z	N/A
2009	Nissan	Armada	N/A
2009	Nissan	Pathfinder	N/A
2009	Nissan	Pickup	N/A
2009	Nissan	TITAN	N/A
2008	INFINITI	EX35	N/A
2008	INFINITI	G35	N/A
2008	INFINITI	G37	N/A
2008	INFINITI	M35	N/A
2008	INFINITI	M45	N/A
2008	INFINITI	QX56	N/A
2008	Nissan	Armada	N/A
2008	Nissan	Pathfinder	N/A
2008	Nissan	Pickup	N/A
2008	Nissan	TITAN	N/A
2007	INFINITI	G35	N/A
2007	INFINITI	M35	N/A
2007	INFINITI	M45	N/A
2007	INFINITI	QX56	N/A
2007	Nissan	Armada	N/A
2007	Nissan	Pickup	N/A
2007	Nissan	TITAN	N/A
2006	INFINITI	M35	N/A
2006	INFINITI	M45	N/A
2006	INFINITI	QX56	N/A
2006	Nissan	Armada	N/A
2006	Nissan	Pickup	N/A
2006	Nissan	Sentra	N/A
2006	Nissan	TITAN	N/A
2005	INFINITI	QX56	N/A
2005	Nissan	Armada	N/A
2005	Nissan	Pickup	N/A
2005	Nissan	Sentra	N/A
2005	Nissan	TITAN	N/A
2004	INFINITI	QX56	N/A
2004	Nissan	Frontier	N/A
2004	Nissan	Pathfinder Armada	N/A
2004	Nissan	Pickup	N/A
2004	Nissan	Sentra	N/A
2004	Nissan	TITAN	N/A
2004	Nissan	Xterra	N/A
2003	Nissan	Frontier	N/A
2003	Nissan	Pickup	N/A
2003	Nissan	Sentra	N/A
2003	Nissan	Xterra	N/A
2002	Nissan	Frontier	N/A
2002	Nissan	Pickup	N/A
2002	Nissan	Sentra	N/A
2002	Nissan	Xterra	N/A
2001	Nissan	Altima	N/A
2001	Nissan	Frontier	N/A
2001	Nissan	Pickup	N/A
2001	Nissan	Sentra	N/A
2001	Nissan	Xterra	N/A
2000	Nissan	Altima	N/A
2000	Nissan	Frontier	N/A
2000	Nissan	Pickup	N/A
2000	Nissan	Sentra	N/A
2000	Nissan	Xterra	N/A
1999	Nissan	Altima	N/A
1999	Nissan	Frontier	N/A
1999	Nissan	Pickup	N/A
1998	Nissan	Altima	N/A
1998	Nissan	Frontier	N/A
1998	Nissan	Pickup	N/A
1994	Nissan	D21	N/A
1994	Nissan	Pickup	N/A
1993	Nissan	D21	N/A
1992	Nissan	D21	N/A
1991	Nissan	D21	N/A
1990	Nissan	D21	N/A
1989	Nissan	D21	N/A
1988	Nissan	D21	N/A
1987	Nissan	D21	N/A
1986	Nissan	720	N/A
1986	Nissan	D21	N/A
1985	Nissan	720	N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

CONB11446EC2881PT3016S2978

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.