300f Temp Sender1/4-18np

The VDO 300F Temperature Sender with 1/4-18 NPT male connection (model 323-058) is a precision electric temperature switch engineered for heavy-duty thermal monitoring applications where reliable activation at 300 degrees Fahrenheit is critical. This industrial-grade sender converts temperature data into electrical switching action, making it essential for engine cooling systems, transmission fluid monitoring, and other high-temperature industrial circuits that demand fail-safe performance.

The 1/4-inch NPT male thread provides industry-standard mounting compatibility across a wide range of engine blocks, manifolds, and fluid system ports. Activation at precisely 300 degrees Fahrenheit ensures the temperature sender engages warning systems or protective circuits at the threshold specified by OEM engineering standards. The compact design measuring 3 x 1.25 x 5.45 inches and lightweight 0.1 lbs construction allow straightforward installation without adding significant bulk or weight to equipment. VDO's reputation for precision instrumentation means this sender maintains calibration accuracy across thermal cycling and extended service intervals.

This temperature sender is designed for operators and technicians managing fleet vehicles, heavy equipment, marine propulsion systems, and stationary power generation where temperature monitoring directly impacts safety and component longevity. The 300-degree activation point suits applications requiring mid-to-high temperature thresholds—ideal for diesel engines, transmission cooler circuits, and auxiliary cooling systems. Installation in the correct port location ensures accurate readings and timely electrical response when thermal limits are approached.

VDO temperature senders are OEM-equivalent components trusted in automotive and industrial service environments where temperature control prevents catastrophic failure. The electrical switching design integrates directly into existing gauge clusters, warning light circuits, and engine management systems without requiring specialized adapters or modifications.