In-Line Temp Port Assembly

The Peterson Fluid In-Line Temp Port Assembly (model 09-1960) is a precision-engineered temperature monitoring solution designed for enthusiasts and professional mechanics who demand accurate coolant temperature data in high-performance cooling systems. This fitting serves as the critical bridge between your engine block and auxiliary gauges or data acquisition systems, enabling real-time thermal monitoring during dyno runs, street driving, or track sessions. Whether you're tuning a carbureted classic, managing a modern forced-induction engine, or logging coolant temperatures across multiple zones, this in-line port assembly delivers the reliability and accuracy serious builders expect.

Constructed from aircraft-grade aluminum and finished in red anodizing for corrosion resistance, the In-Line Temp Port Assembly features dual 12 AN male ports with a 5/8-18 inch female gauge port, allowing seamless integration into high-flow cooling circuits without pressure drop or flow restriction. The dual male configuration enables in-line installation directly into your coolant line—eliminating the need for bulky block adapters—while the precision female gauge port accepts standard mechanical or electronic temperature sensors with repeatability and minimal thermal lag. The compact 4.5 x 1.5 x 5.15 inch footprint and light 0.33 pound weight make it ideal for tight engine bay layouts or remote cooler mounting, and the aluminum construction ensures rapid heat transfer to the sensor element for accurate real-world readings.

This assembly is essential for any cooling system upgrade involving auxiliary radiators, oil coolers, or complex multi-loop circuits where OEM gauge bosses are inaccessible or insufficient. Engine builders, fabricators, and performance tuners rely on in-line temperature ports to monitor coolant flow through specific zones—particularly in turbo and supercharged applications where thermal management directly impacts engine longevity and power output. Installation requires standard hose and fitting tools; compatibility extends to any system running AN-sized hose and mechanical or electric gauge sensors with 5/8-18 female threads. Always verify adequate clearance and coolant flow velocity before final routing to maximize sensor response accuracy and prevent cavitation.