621742 Replacement Thermistor, 21.5” Cable, Lamp Assembly 12 Month Warranty

Maintain proper cooling performance in your RV refrigerator with this Wholesale Sensors replacement for the Norcold 621742 Thermistor and Lamp Assembly. Featuring a 21.5-inch cable and integrated lamp assembly, this component accurately monitors refrigerator temperature while supporting proper interior illumination and cooling system operation. Designed to meet or exceed OEM specifications, this direct replacement thermistor assembly delivers dependable fitment, accurate temperature readings, and long-lasting performance. Manufactured with high-quality sensing elements, durable wiring, and reliable connectors, it is engineered for the demanding conditions encountered in motorhomes, travel trailers, and fifth-wheel RVs. A faulty thermistor can cause temperature fluctuations, inadequate cooling, excessive frost buildup, food spoilage, or inconsistent refrigerator performance. Replacing a failed thermistor assembly can help restore accurate temperature control and reliable operation. Compatible with a wide range of Norcold 1200 and 1201 Series RV refrigerators utilizing part number 621742. Every purchase is backed by Wholesale Sensors' 12-month warranty and knowledgeable USA-based customer support for added confidence and peace of mind.

• OEM REPLACEMENT THERMISTOR ASSEMBLY: Direct replacement for Norcold 621742 Thermistor and Lamp Assembly with 21.5-inch cable. Accurately monitors refrigerator temperature and provides interior lighting to support proper cooling performance and food preservation. Designed to meet or exceed OEM specifications for fit, function, and reliability. Replaces Norcold 621742, 621742BK, and equivalent thermistor lamp assembly kits.
• BROAD RV REFRIGERATOR COMPATIBILITY: Compatible with Norcold 1200, 1200LR, 1200LRBK, 1200LRIM, 1200LRIMBK, 1200LRIMBKD, 1200LRIMD, 1200LRIMSS, 1200LRIMSSD, 1200LRIMWH, 1200LRSS, 1200LRWH, 1201, 1201LR, 1201LRIM, 1201LRIMSS, 1201LRIMSSD, 1201LRIMWPN, 1201LRSS, and 1201LRWH RV refrigerators. Verify model and serial number before purchase.
• PRECISION TEMPERATURE CONTROL: Manufactured with high-quality sensing components, durable wiring, and reliable electrical connections for accurate temperature monitoring and long service life. Built to withstand vibration and demanding RV travel conditions. Every thermistor assembly is rigorously tested for temperature accuracy, electrical performance, durability, and reliability.
• RESTORES COOLING PERFORMANCE: Direct-fit design simplifies replacement using factory mounting locations and connections. Helps resolve temperature fluctuations, improper cooling, food compartment temperature issues, refrigerator overcooling, warm refrigerator conditions, thermistor failures, and intermittent cooling operation caused by a faulty temperature sensor assembly.
• USA SUPPORT AND WARRANTY: Wholesale Sensors provides dependable replacement RV refrigerator components backed by responsive USA-based customer support and a 12-month warranty. Every thermistor assembly is carefully inspected and tested to ensure consistent quality and reliable performance, providing confidence for RV owners, service technicians, and maintenance professionals.