Trane MOT11257 | OEM 1/2 HP Variable Speed ECM Blower Motor Module

Trane OEM MOT11257 Is A 1/2 HP 115V Variable Speed ECM Blower Motor With 16-Pin Harness and 2.3 Series This genuine original equipment manufacturer (OEM) electronically commutated motor (ECM) blower assembly is engineered explicitly for direct installation within high-efficiency Trane and American Standard residential gas furnaces and air handlers. It manages precise variable-speed indoor airflow circulation, static pressure compensation, and complex multi-stage ventilation configurations. This brushless DC electronic motor is built exclusively to support the technical operational architecture found in the XV80 and Freedom 80 variable-speed furnace series. It directly interprets digital signal commands from the integrated furnace control board to modulate high-efficiency current paths during the heating, cooling, and continuous fan run cycles. Key Features Part number MOT11257 delivers a drop-in variable speed replacement that eliminates the need for field fabrication, bracket modifications, or structural mounting updates. Genuine OEM fit guarantees exact plug-and-play compatibility with the factory 16-pin control wiring harness connectors and low-voltage speed tap lines. Upgraded internal drive module circuits resolve erratic blower startup hesitation, cyclical hunting errors, and the loud physical humming noise common in failing electronic modules. Advanced thermal protection monitoring logic provides real-time over-current protection and automatic high-temperature shutoff safety when replacing older legacy motor variations. Product Details Brand: Trane Manufacturer: Genteq / Emerson Part Number: MOT11257 SKU: MOT11257RC UPC Code: 721008064935 Shipping Weight: 16.4 lbs Input Voltage: 115V Line Current: 7.4 Amps Frequency: 60 Hz Phase: Single Phase Motor Performance: 1/2 HP Variable Speed ECM Frame Size: 48 Frame Rotation Direction: Counter-Clockwise (CCW) Connector Type: 16-Pin Control Plug & 5-Pin Power Plug Compatibility Range: Universally compatible with GE/Genteq 2.0 and 2.3 motor architectures (does not replace 2.5 or 3.0 silver modules) 🛠️ HVAC Depot Pro Tip Always take a high-resolution photograph of the existing 16-pin harness orientation and individual power line terminal paths before disconnecting the old blower motor. When installing the replacement assembly, ensure you form a functional "drip loop" in the wiring harness wires before they enter the control plug, preventing condensation from tracking down the jacket and causing premature short circuits inside the electronic drive module. Cross-Reference Superseded Number: MOT09257 Legacy Number: MOT11255 Drawing Number: D341314P29 / D341314P57 Module Number: 5SM59HEG White-Rodgers / Genteq Equivalent: 2.3 ECM 16-Pin Model Compatibility XV80 (Suffixes: TUD060R9V3K4, TUD080R9V3K4, TUD080R9V4K4, TDD060R9V3K4, TDD080R9V3K4) AUD1 (Suffixes: AUD060R9V3K4, AUD080R9V3K4, AUD080R9V4K4, ADD060R9V3K4, ADD080R9V3K4)