Restore a clean, secure electrical connection with the Standard Ignition Connector S-949 (also written S949). This factory-assembled pigtail is listed under several names — Ignition Coil Connector, Ignition Knock (Detonation) Sensor Connector, and Coolant Fan Relay Connector — and installs as a direct-fit replacement across a wide range of Chrysler, Dodge, Jeep, Plymouth, Chevrolet, GMC, Cadillac, Mitsubishi, RAM and SRT vehicles. It is cataloged for the rear right position on the applicable vehicles.
An electrical connector provides the plug-in link between the wiring harness and its component. When terminals corrode, melt, or lose tension the circuit can go intermittent and set related trouble codes; if a damaged connector is the cause, this replaces it with the correct terminals and housing.
Fitment: 2015-2025 Cadillac Escalade; 2014-2025 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2015-2025 Chevrolet Suburban; 2015-2025 Chevrolet Tahoe; 1998-2001 Chrysler 300M; 1998-2004 Chrysler Sebring; 1996-2003 Dodge Caravan; 1998-2006 Dodge Dakota; 1998-2007 Dodge Durango; 1998-2006 Dodge Ram 1500; 1997-2006, 2008-2010 and 2015-2016 Dodge Viper; 2014-2025 GMC Sierra 1500; 2015-2025 GMC Yukon and Yukon XL; 1998-2004 Jeep Grand Cherokee; 1998-2006 Jeep Wrangler; 2011-2018 RAM 2500/3500/4500/5500; 2013-2014 SRT Viper. See the Buyer's Guide tab for the full list.
Interchange: PT5825 · 4897034AA · 5013979AA · 5013979AB · 5013979AC · 861 · EC421
This part cross-references / interchanges with the following part numbers:
What does the S-949 connector do?
It's an electrical harness connector (pigtail) that provides the plug-in link between the wiring harness and its component. If a corroded or damaged connector is the cause of a fault, this replaces it.
Is this part listed under more than one name?
Yes — it's cataloged as an Ignition Coil Connector, an Ignition Knock (Detonation) Sensor Connector, and a Coolant Fan Relay Connector, so it may appear under any of those names.
Does it come ready to install?
It ships factory-assembled with wire connectors and extended lead wires where applicable, so you typically don't need specialized tools to install it.
How do I know it fits my vehicle?
Check the Buyer's Guide tab and match your year, make, and model. It covers many Chrysler, Dodge, Jeep, GM, Plymouth, RAM and SRT applications.
What are signs the connector may need replacing?
Corroded, melted, or loose terminals, intermittent operation of the connected component, or related trouble codes can indicate a damaged connector. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
