Goofit Single Pulse Generator (Crankshaft Position Sensor) Compatible with John Deere 325/335/345/425/445/455 Lawn Tractors Original Part Number: AM105573 / AUC15118

[Universal Sensor for John Deere Lawn Tractors] This crankshaft position sensor is a pulse generator designed for many John Deere 300 and 400 series lawn tractors. It meets manufacturer specifications and is compatible with part numbers AM105573 and AUC15118. Its robust, oil- and dust-resistant housing is specifically designed for the demanding operating conditions of garden equipment. It accurately detects the crankshaft position and sends a vital trigger signal to the ignition control unit. This electronic sensor ensures smooth engine starting, stable idling, and reliable operation. **[Perfect Compatibility with Many Classic Models]** This product directly replaces part numbers AM105573 or AUC15118 and is specifically designed for the following John Deere lawn tractors: John Deere 325, John Deere 335, John Deere 345, John Deere 425, John Deere 445, and John Deere 455. (Note: This product is compatible with both part numbers and will fit the listed models. Please check the original part number on your engine or confirm final compatibility with your machine model before purchasing to ensure a perfect fit.) **[Fixes Starting and Running Issues]** Replacing the original sensor due to coil damage, magnet defects, a faulty wiring harness, or moisture corrosion effectively resolves the following issues: engine starting difficulties or problems; sudden engine stalling during operation; rough idling; intermittent power loss; No spark (after checking other components). [Professional Installation and Air Gap Requirements] This product is a precision electromagnetic component typically mounted near the flywheel housing or timing cover. Installation requires precise adjustment of the air gap between the sensor head and the flywheel's trigger teeth (or signal disc). This air gap must meet stringent requirements (typically 0.3 to 1.0 mm) and be set using a non-magnetic feeler gauge according to the service manual. An incorrect air gap is a common cause of malfunctions. [Scope of Delivery] 1 Single Pulse Sensor