Restore a clean, secure electrical connection to your headlight switch or instrument panel dimmer switch with the Standard Ignition Headlight Switch Connector / Instrument Panel Dimmer Switch Connector (MPN S-800, also written S800). It's a direct-fit replacement for a long list of GM trucks, vans and SUVs, including the 1999-2000 Cadillac Escalade, 1996-1999 Chevrolet Astro, 1995-1999 Chevrolet C1500, 1996-2002 Chevrolet Express 1500, 1995-2000 Chevrolet Tahoe, 2003-2009 GMC C4500 Topkick and 1995-2000 GMC Yukon — see the Buyer's Guide tab for the full list of 54 applications.
When damaged, corroded or brittle wiring at the switch causes intermittent headlights or dimmer function, this connector replaces the failed pigtail so the circuit can carry current the way it should.
Interchange: 88862289 · PT5734 · 634 · EC244 · 12167155
This part cross-references / interchanges with the following part numbers:
What is the Standard Ignition S-800?
It's an electrical connector (pigtail) for the headlight switch and instrument panel dimmer switch circuit, sold under both names. It's cataloged as MPN S-800, also written S800.
Which vehicles does it fit?
It's a direct-fit replacement for 54 GM applications, including the Cadillac Escalade, Chevrolet Astro, C1500, Express, Tahoe, GMC Topkick and Yukon. Check the Buyer's Guide tab for the full list.
When should I replace this connector?
Signs it may need replacing include melted, corroded or brittle wiring at the switch and intermittent headlight or dimmer operation. Diagnose the cause before replacing to confirm the connector is the issue.
Does it come with wiring?
It's a factory-assembled connector that includes wire connectors and extended lead wires where applicable, so installation typically doesn't require specialized tools.
What other part numbers does it replace?
It interchanges with 88862289, PT5734, 634, EC244 and 12167155. Match your original connector and confirm fitment for your vehicle before ordering.
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.
