Thermo King Coolant Level Sensor 412842

• OEM Precision Monitoring — Engineered by Thermo King to deliver continuous, highly accurate fluid data straight to your reefer controller interface. [1]
• Heavy-Duty Engineering — Specifically constructed to handle extreme engine compartment vibrations, temperature cycling, and chemical road spray. [1, 2]
• Direct-Fit Electrical Plug — Designed with factory-matching dimensions and standard plug configurations for immediate plug-and-play installation. [1]
• Overheating Prevention — Serves as a vital early-warning safeguard against engine failure, head gasket leaks, and unexpected roadside trailer damage. [1]
• Extends Unit Lifespan — Proactively replacing older sensors ensures precise system feedback, optimizing fleet health and reducing diagnostic headaches. [1]

• Engine Coolant Monitoring — Plugs directly into your reefer unit’s engine expansion tank or cooling lines to detect low fluid levels. [1]
• Preventative Fleet Maintenance — Replaces worn out, malfunctioning, or faulty factory level senders during routine shop service intervals. [1]
• Fleet Safety Protocols — Ensures the automated onboard controller triggers correct diagnostic fault codes before safety shutdowns happen. [1]
• Multi-System Adaptability — Works as a multi-generational replacement sensor throughout several leading trailer and container families. [1, 2]

This product was acquired by Freeman Liquidators from a sale of merchandise subject to a commercial insurance loss. Freeman Liquidators is a secondary seller of products, is not affiliated with or sponsored by the manufacturer of the products and is not a manufacturer authorized seller of the products. Sale of this product by Freeman Liquidators is not subject to the policies of the manufacturer. Any warranty offered by the manufacturer is not available to you as the purchaser.

All products are NEVER USED but external packaging will have damage. Some items may be placed into other packaging to ensure safe shipping. All items are opened for inspection prior to shipment to ensure the best quality of products. Freeman Liquidators guarantees your satisfaction. If you are not completely satisfied with a purchased product, within 30 days from the date of purchase, return the product in its packaging and Freeman Liquidators will fully refund your money.

Shipping is automatically calculated at checkout.

In store pickup is sometimes the only option. These products are noted as such in our listings.

Some items have been set up so that they require a shipping quote.  Please fill out the appropriate form on the product's page and we will respond within 24-48 hours with a freight quote.  

What we ship is by best carrier, some products prepaid and others not, due to our large variances in product lines, physical sizes and weight.

At checkout you will be prompted for shipping alternatives dependent on these parameters. Products which fit standardized packaging may also have calculated shipping costs by weight and volume on our website.

In all cases our staff audits for the best shipping cost and if necessary will contact our customer with recommendations.

Freight/Palleted items that are not accepted by the recipient or are sent back to us due to undeliverable address may be refunded, but the return shipping fees will be deducted from the overall amount of refund.

All returned items are subject to a 10% handling fee.