Description
Product Overview
21399626 Level sensor is installed in the auxiliary water tank of the radiator. It uses the internal sensing element of the probe rod to monitor the height of the coolant level. When the level drops below the safety threshold, it sends an alarm signal to the electronic control unit and the instrument to remind of the need to replenish antifreeze, preventing the engine from overheating and damaging due to water shortage. The original vehicle sensor wiring harness is aging, the probe rod sensing element fails, and water seeps at the sealing area, resulting in either no fault reporting or false alarms. The entire integrated wiring assembly can be directly plugged and replaced, suitable for heavy trucks, large excavators, and heavy-duty loaders for maintenance and replacement.
Unique core features of the single product
Extended solid corrosion-resistant probe rod, with sensitive and stable liquid level sensing
Long and slender integrated plastic probe rod, resistant to corrosion from antifreeze, with sufficient immersion depth in the coolant, no delay in switching between high and low liquid levels, does not age or crack after long-term immersion, accurately identifies the water shortage state.
Double-line oil-resistant rubber sheathed wiring harness, resistant to bending and wear
Internal layout of blue and black double lines, outer layer fully wrapped with rubber sheath, resisting cabin high temperature and pipeline friction, not prone to cracking or short circuit after repeated bending, suitable for complex wiring environments around the small water tank.
Integrated rubber sealing gasket in the middle, preventing leakage at the installation position
The integrated thick rubber sealing ring at the root of the probe rod is formed in one piece, after being inserted into the water tank installation hole, it closely adheres, blocking the leakage of coolant from the assembly gap, eliminating water tank leakage and sensor moisture faults.
Gray card snap waterproof plugs at both ends, dustproof, waterproof, and shock-resistant
Both ends are equipped with gray plastic-sealed card connectors, with internal sealing rubber layer to isolate water vapor, dust, and antifreeze splashing, ensuring that the pins do not loosen and oxidize under long-term vehicle jolting, and the signal transmission remains uninterrupted.
Integrated pre-installed assembly, no wiring required for quick installation
The probe rod, wiring harness, and plug are fully pre-installed as one, for maintenance and disassembly, direct plugging and replacement are possible, without the need for on-site wiring processing, significantly reducing equipment downtime and maintenance time. Applicable scenarios
Suitable for heavy-duty freight trucks, large mining excavators, engineering loaders, high-power diesel generators, and equipment used for 24-hour continuous full-load, high-temperature, high-dust, and heavy-duty operations in mining areas and construction sites.
Product basic parameters
Product name: Coolant Level Sensor
Part number: 21399626
Main material: Corrosion-resistant plastic level sensor rod, oil-resistant rubber cable sheath, gray waterproof engineering plastic plug, rubber sealing gasket
Structural features: Extended level sensing probe, dual-line protective cable, middle-mounted sealing rubber ring, end-coupled waterproof connectors
Application conditions: 24-hour continuous heavy-duty, engine compartment high-temperature, high-dust heavy-duty diesel construction machinery cooling system
Product status: New and complete assembly, completed with liquid level sensing accuracy, cable bending resistance, and waterproof sealingity factory tests
Packaging: Independent cushioned small package, probe end head separately protected to prevent compression deformation, suitable for cross-border small package logistics.
