.xp{font-family:Arial,sans-serif;color:#222;line-height:1.55}.xp .hero{background:linear-gradient(135deg,rgba(0,0,0,.86) 55%,rgba(0,0,0,.45)),url('https://cdn.shopify.com/s/files/1/0897/7783/2225/files/4444444444444444.png?v=1777040489') center/cover no-repeat;padding:34px 28px;border-radius:14px;color:#fff;margin-bottom:24px}.xp .label{display:inline-block;background:#d71920;color:#fff;font-weight:800;font-size:13px;letter-spacing:.5px;padding:7px 12px;border-radius:999px;margin-bottom:12px}.xp .hero h2{color:#fff!important;font-size:30px;line-height:1.15;margin:0 0 12px}.xp .hero p{color:#fff;margin:0 0 14px;max-width:850px}.xp .specs{display:flex;gap:8px;flex-wrap:wrap}.xp .specs span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);padding:6px 10px;border-radius:999px;font-size:13px}.xp h2{font-size:23px;margin:28px 0 12px}.xp .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(185px,1fr));gap:12px}.xp .card{border:1px solid #e6e6e6;border-radius:10px;padding:14px;background:#fff}.xp .card strong{display:block;color:#d71920;margin-bottom:4px}.xp .box{border-left:4px solid #d71920;background:#f7f7f7;padding:14px 16px;border-radius:8px}.xp .note{background:#f7f7f7;padding:14px 16px;border-radius:8px}.xp ul{padding-left:22px}.xp .models{word-break:break-word}.xp .us{font-weight:700;margin-top:8px}.xp .preserved-images img{max-width:100%;height:auto} WASHER DISPLAYS AN F51 ERROR OR HAS A MOTOR-POSITION SE Whirlpool Washer Rotor Position Sensor WPW10178988, Fixes Washer displays an F51 error or has a motor-position sensing fault Whirlpool OEM washing-machine rotor position sensor (RPS) installed at the motor stator. Part WPW10178988Whirlpool Whirlpool OEM washing-machine rotor position sensor (RPS) installed at the motor stator. Is This the Right Part? Part NumberWPW10178988 ManufacturerWhirlpool Appliance TypeWasher Part TypeRotor Position Sensor Common Symptoms F51 error code Washer stops during operation because rotor-position feedback is unavailable Motor operation or spin control fault Check Before Replacing Use the washer's documented diagnostic mode or technical sheet to check for rotor-position or motor-sensor fault codes. Inspect the sensor connector and wiring for visible looseness or damage with power disconnected. Confirm the rotor can rotate freely before attributing a fault to the sensor. Pro Tip The sensor is mounted at the motor stator, so access generally requires working around the washer drive motor assembly. Part Details Part NumberWPW10178988 Part TypeRotor Position Sensor ManufacturerWhirlpool Appliance TypeWasher Primary FunctionMonitors rotor position and speed for the washer drive motor control system. Key Features Genuine Whirlpool OEM part RPS rotor-position sensor Installed at the motor stator New replacement part Used across selected Whirlpool, Maytag, and Kenmore washers Installation Notes Disconnect electrical power before servicing the washer. Follow the appliance-specific service documentation for access to the motor stator and sensor. Do not replace the sensor solely from a generic no-spin symptom; verify the related wiring and diagnostic code first. Verified Compatible Models 7MMVWB850WL0, 7MMVWB950AG0, 7MWTW7800XW0, 7MWTW8800AW0, 110.27062604, 110.27072604, 110.28032701, 110.28042701, 110.28062800, 110.28072800, 110.28081700, 110.28082700, 110.28087700, 110.28091700, 110.28092700, 110.28097700, MVWB300WQ1, MVWB300WQ2, MVWB450WQ1, MVWB455YQ0, MVWB700BW0, MVWB725BG0, MVWB725BW0, MVWB750WB1, MVWB750WL1, MVWB750WQ1, MVWB750WR1, WTW6200SW3, WTW6400SW3, WTW6600SW3, 110.27082605, MVWB750WR0, MVWB755YL0, MVWB800VQ0, MVWB800VU0, MVWB850YG0, MVWB980BG0, WTW6200VW0, WTW7340XW0, WTW7800XL2, WTW7990XG1, WTW8500BC0, WTW8540BC1, WTW8600YW0 Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.