Stepper Motor Assembly OEM Reference: 0G6453 Color: Black Replacement for Generac Guardian GTH990 HSB Engine Product overview This stepper motor assembly is a direct replacement component designed to match the form and function of the original OEM part 0G6453. It provides precise position control for engine systems that rely on stepped motion input, restoring consistent operation and supporting reliable engine response. Key benefits Direct compatibility: Intended as a replacement for the Generac Guardian GTH990 HSB engine using OEM reference 0G6453, reducing fitment uncertainty. Precise control: Stepper operation provides accurate incremental movement for throttle and position control tasks, helping stabilize idle and response. Reduced downtime: Replacing a worn or faulty stepper motor assembly restores normal control behavior and minimizes service time. Simple swap: Designed to align with original mounting points and connectors for straightforward installation and maintenance. Durable finish: Black housing for a consistent appearance and protection in engine environments. Important attributes Function: Stepper motor assembly for controlled incremental movement and position feedback in engine control systems. Compatibility: Replacement for Generac Guardian GTH990 HSB engine applications that use OEM reference 0G6453. Size and fit: Built to match OEM dimensions and mounting configuration for direct replacement without modification. Material and construction: Robust construction with a protective black housing suited to typical engine compartment conditions. Performance: Engineered for stable, repeatable stepping action to support throttle positioning and similar control tasks. Typical use scenarios Field : a failed stepper motor on a standby generator equipped with a GTH990 HSB engine to restore throttle control and the unit to service. Scheduled maintenance: Keep a replacement assembly on hand for routine servicing of engines using OEM reference 0G6453 to shorten maintenance windows. Engine overhaul: Install as part of an engine rebuild or component refresh to control systems to original operating behavior. Notes Matches OEM reference 0G6453 and intended for applications compatible with Generac Guardian GTH990 HSB engine specifications. Ensure compatibility with your specific model and wiring before installation.