Thermo King Genuine OEM 1PDT Electrical Relay Valve — 618662

• Genuine OEM Electrical Engineering — Designed directly by Thermo King Parts to match the exact amperage and voltage protocols of transport reefers. [1]
• 1PDT Switching Accuracy — Single Pole Double Throw configuration delivers isolated circuit paths to keep essential sensors and sub-systems perfectly coordinated.
• Vibration-Resistant Housing — Rugged internal contacts resist relentless over-the-road jolts, protecting heavy trucks from unexpected circuit failures.
• Instantaneous Terminal Response — Eliminates signal delays and minor current arcing to prevent control board failure and diagnostic fault codes.
• Liquidation Deal Savings — Delivers original equipment quality at a fraction of standard commercial dealer costs to maximize fleet profit margins.

• Reefer Electrical Overhauls — Direct plug-and-play component replacement for failing, corroded, or shorted switching relays in trailer power boxes.
• Circuit Command Regulation — Manages automated power cycles for engine temperature sensors, auxiliary climate nodes, and main system controllers.
• Multi-Zone Maintenance — Essential diagnostic choice when resolving complex circuit distribution drops or minor phantom electrical drains.
• Broad Model Application — High-utility tracking fits seamlessly within major commercial trailer setups including the Thermo King SB-210 and SB-310 systems.

📦 Shipping & Returns Policy

• Shipping Status: This item qualifies for standard ground package delivery. It is compact and lightweight, meaning no special freight truck delivery is required. Orders are processed and shipped from our warehouse within 1–2 business days.
• Freeman Return Policy: Backed by our signature store warranty. If this component does not match your system specifications or fails to resolve your mechanical alignment upon arrival, return it in its original packaging within 30 days for a full refund or inventory swap.

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.