Multiquip 8970119490 Relay Glow Plug DCA-125SSIU - OEM Replacement Part

The glow plug relay controls the preheating cycle for diesel generator engines in cold-start conditions, energizing the glow plugs to raise combustion chamber temperature before cranking. This relay is a critical component in the auto start/stop controller assembly, working in conjunction with the engine block heater system to ensure reliable cold-weather operation. When this relay fails, symptoms include extended cranking times, rough cold starts, white smoke during startup, or complete failure to start in cold conditions.

This OEM relay is engineered specifically for Multiquip's DCA-series diesel generator control systems, integrating with the controller wiring diagram reference M3814100903. The relay interfaces with the 120 VAC input receptacle circuit and coordinates timing between the battery charger, engine block heater, and glow plug system to optimize startup performance.

Compatible with the following Multiquip models:

• DCA125SSIU4F
• DCA20SPXU4F
• DCA25SSIU4F
• DCA25SSIU4FC8
• DCA45SSIU4F
• DCA45SSIU4FC8
• DCA70SSIU4F
• DCA70USI3CAN
• DIS185SSI4F
• DLW500ESA4
• MQP56

Genuine Multiquip OEM part, sold by an authorized dealer.