3 Pin Coolant Level Sensor 20900982 for Heavy Duty Trucks | 3-pin coolant level sensor. Fits 20900982, 904-7703, 22564822. Aftermarket expansion tank switch for semi trucks.

Keep your commercial truck running and protect your diesel engine from overheating with the SOLIDAI Heavy-Duty 3-Pin Engine Coolant Level Sensor. Operating as a critical diagnostic link inside your surge tank, this probe delivers real-time coolant level tracking to help keep your fleet running smoothly.Engineered for Fleet Vehicle Compatibility The SOLIDAI sensor features a precision-calibrated housing mold that matches factory specification dimensions. Each unit undergoes electrical testing to help resolve incorrect low-coolant dash alerts and restore proper ECM feedback upon proper installation.Product Specifications: - Brand: SOLIDAI - Type: 3-Pin Expansion Tank Coolant Level Sensor Switch - Output Signal: High-Stability Push-Pull Contact Performance - Mounting: Precision Flange Seating Layout - Housing Material: Heavy-Gauge High-Temp Resin Structure - Cross Reference Part Numbers: 20900982, 904-7703, 22564822Installation Note: When performing cooling system service, ensure the expansion tank terminal housing port is clean and free of debris before connecting your new SOLIDAI sensor. This helps ensure stable circuit feedback to the ECM.Please verify your vehicle utilizes a 3-pin connection plug configuration. This sensor is designed for engine coolant level monitoring and is not a DEF/Urea tank level sensor.SOLIDAI is an independent aftermarket brand. This is a replacement component, not an original equipment manufacturer product. Please verify vehicle fitment before purchasing. Professional installation recommended.

• 【RESTORE DIAGNOSTIC ACCURACY】 Engineered to directly communicate with your rig's ECM to help resolve persistent "Low Coolant Level" dashboard warnings. Specifically calibrated to restore accurate fluid monitoring and help clear incorrect diagnostic alerts upon proper installation.
• 【RELIABLE WIRE INTEGRATION】 Designed for seamless integration into your existing vehicle wire matrix. This 3-pin expansion tank level switch provides instantaneous liquid presence tracking for compatibility with heavy-duty vehicle diagnostic scanning and fleet maintenance procedures.
• 【PRECISE DIMENSIONAL MATCHING】 Manufactured to match precision engineering profiles and locking dimensions. This ensures a secure aftermarket fit that seats properly within the radiator expansion tank socket without loose gaps or interference.
• 【CROSS-COUNTRY HAUL DURABILITY】 Built to endure the severe thermal cycles and high-frequency chassis vibrations inherent to heavy Class 8 commercial vehicles. Upgraded internal sealing defenses protect against fluid intrusion, helping prevent early circuit drift and component burnout.
• 【TRUCK COMPATIBILITY】 Precision-engineered for aftermarket replacement. Compatible with heavy duty commercial truck platforms utilizing 3-pin coolant level sensor configurations. Note: Please verify your 3-pin connection layout before purchase.