Get your diesel cranking on cold mornings with the Standard Ignition Diesel Glow Plug Relay RY1868. This relay switches battery power to the engine's glow plugs during the preheat cycle, helping warm the combustion chambers for easier cold-weather starting. It's a direct-fit replacement for the listed applications: the 2002-2009 Ford F-650, 2002-2009 Ford F-750, 2006-2009 Ford LCF, 2005-2007 IC Corporation 1652 SC, 2007 IC Corporation 3200, 2005 IC Corporation 3300 Chassis, 2007 IC Corporation HC Integrated Commercial, 2005 IC Corporation RE Integrated, and 2006-2007 IC Corporation RE School Bus — see the Buyer's Guide tab for engine details.
If a failed glow plug relay is behind your hard cold starts or extended cranking, this unit replaces it. Diagnose the cause before replacing.
Interchange: R7371 · 16214 · GPR203 · 4C4Z12B533AA · DY989 · 1840861C1 · 1840903C91
This part cross-references / interchanges with the following part numbers:
What does this glow plug relay do?
It switches battery power to the diesel glow plugs during the preheat cycle, helping warm the combustion chambers for easier cold-weather starting.
Will this fit my vehicle?
It's a direct-fit replacement for applications such as the 2002-2009 Ford F-650 and F-750, 2006-2009 Ford LCF, and several IC Corporation models. Check the Buyer's Guide tab to confirm your vehicle.
What are the signs this relay may need replacing?
Hard or extended cold cranking and no-start conditions can be signs. Because other components can cause these symptoms, diagnose the system before replacing.
What contacts does this relay use?
It features brass or copper contacts where specified for extended wear resistance in high-stress applications.
What numbers does this relay interchange with?
It cross-references R7371, 16214, GPR203, 4C4Z12B533AA, DY989, 1840861C1, and 1840903C91.
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.
