Product: Glow Plug Control Module (Replacement Part Numbers: DY-876, 1828565C1, YC3Z12B533AA, FSR1828565C1, 904-282) Key benefits Restores reliable cold starts by controlling glow plug operation and timing. Reduces electrical stress on a single circuit by supporting distribution of glow plugs across multiple circuits and relays. Protects wiring and relays from excessive current draw by enabling controlled switching of glow plugs. Compatible replacement for affected Ford Powerstroke Diesel engines, helping return preheat and starting performance to specification. Function and performance Controls glow plug operation through a glow plug relay that switches current to the glow plugs on and off. Monitors multiple glow plugs; as the number of plugs monitored increases, the module helps manage higher circuit current by enabling distribution across two circuits and two relays when required. Provides dependable switching and timing control for consistent preheat cycles and improved start-up reliability in cold conditions. Compatibility Designed for use with Ford Powerstroke Diesel engines: 6.0L, 7.3L, and 6.4L models. Matches the listed replacement part numbers: DY-876, 1828565C1, YC3Z12B533AA, FSR1828565C1, 904-282. Attributes Function: Glow plug control unit that operates glow plug relays to switch current and manage preheat timing. Electrical behavior: Supports multi-circuit configurations to limit current per circuit and reduce voltage drop during glow plug operation. Form factor: Compact vehicle-mounted electronic control module designed to integrate with the engine electrical system. Performance focus: Reliable switching, current management, and consistent glow plug monitoring to improve cold-start performance and protect related components. Typical use scenarios Replace a failed glow plug control module on a Ford Powerstroke 6.0L to restore normal glow plug timing and recover cold-start reliability. Service fleet or work trucks with 7.3L or 6.4L Powerstroke engines to reduce recurring relay and wiring failures by using proper glow plug circuit distribution. Diagnose intermittent or prolonged preheat cycles and replace the control module to eliminate erratic glow plug switching and improve engine start consistency in cold weather. Notes Confirm part number compatibility with your vehicle before installation. The module works with the above replacement numbers and Powerstroke engine models listed.