3 Pin Coolant Level Sensor N9267001 for Heavy Duty Trucks | 3-pin coolant level sensor. Fits N9267001, 904-7631, 577.59503. Aftermarket expansion tank switch for semi trucks.

Keep your commercial truck running and protect your cargo schedule against unexpected dashboard alerts with the SOLIDAI Premium Heavy-Duty 3-Pin Coolant Level Sensor. This sensor actively monitors coolant level to help protect your high-horsepower diesel engine from severe thermal wear.Engineered for Long-Haul Reliability For independent truckers and fleet managers, vehicle downtime equals lost revenue. Inferior aftermarket level sensors can succumb to moisture intrusion, shorting out mid-trip and tricking your truck's ECM into a forced engine derate or rough idle. SOLIDAI features an upgraded internal circuit matrix and advanced seamless sonic sealing, allowing the probe to withstand consistent submersion in pressurized coolant up to 150 degrees Celsius (302 degrees Fahrenheit) without signal drift.Product Specifications: - Brand: SOLIDAI - Type: 3-Pin Expansion Tank Coolant Level Sensor Switch - Mounting Type: Precision Flange Mount - Output Signal: High-Stability Electrical Signal - Max Temperature Rating: 150 degrees Celsius (302 degrees Fahrenheit) - Cross Reference Part Numbers: N9267001, 904-7631, 577.59503Installation Note: Verify your part number before purchase. Designed for coolant level monitoring only (not a temperature sensor). Always allow engine to cool before installation.SOLIDAI is an independent aftermarket brand.

• 【PREVENT ENGINE DERATE】 Avoid unexpected roadside shutdowns and false dashboard alarms. When your existing sensor fails, it can mislead the ECM, causing rough idling, frequent stalling, or sudden drops in engine power. This aftermarket replacement helps prevent engine derate and supports steady fleet operations on long hauls.
• 【HIGH-TEMPERATURE RESISTANT SEALING】 Engineered for demanding thermal cycles in heavy-duty Class 8 diesel engine bays. Rated for operation up to 302 degrees Fahrenheit (150 degrees Celsius), the robust sensor housing resists commercial antifreeze and coolant degradation, designed to help reduce early electrical short-circuits.
• 【ELECTRICAL DEPENDABILITY】 Built for professional owner-operators who need to minimize vehicle downtime. Each unit undergoes electrical testing to help reduce highway false alarms and provide long-lasting durability.
• 【SEMI-TRUCK & FLEET COVERAGE】 Calibrated for aftermarket replacement on heavy utility platforms. Compatible with coolant surge tanks on heavy duty commercial trucks. Built for reliable fleet performance.
• 【PRECISE PART INTERCHANGE】Designed to match precision vehicle physical profiles and electrical signal outputs for a straightforward replacement. Aftermarket fitment. Compatible with reference part numbers including N9267001, 904-7631, and 577.59503. Please verify fitment before purchase.