Veratron Deep-Pipe Level Sender - 340mm - 90 to 4 OHM

The Veratron Deep-Pipe Level Sender – 340mm – 90 to 4 OHM is a precision fuel tank monitoring instrument designed for marine, automotive, and specialty vehicle applications where accurate liquid level measurement is critical. Built by Veratron, a trusted name in instrumentation and marine electronics, this sender transforms fuel tank management from guesswork into reliable, real-time data. Whether you're diagnosing a fuel gauge malfunction, upgrading to digital instrumentation, or installing a custom fuel system in a project build, this deep-pipe sender delivers the accuracy and durability that professional mechanics and serious enthusiasts demand.

This sender operates on a variable resistance principle: a float rides freely inside a 38mm diameter stainless steel tube, moving vertically as fuel level changes and altering the electrical resistance from 90 OHM (empty) to 4 OHM (full). The 340mm total length accommodates deep fuel tanks without requiring internal baffles that could trap sediment or restrict float movement. Strategically positioned holes at the top and bottom of the tube act as a baffle system, preventing fuel surge and slosh from causing gauge needle flutter during acceleration, braking, or rough terrain operation. Stainless steel construction resists corrosion and contamination, ensuring years of stable output even in harsh marine or off-road environments where fuel quality varies.

Mechanics and fabricators rely on this sender for retrofit fuel system installations, custom automotive builds, and fuel tank troubleshooting on vehicles with 1970s–2000s instrumentation. It pairs seamlessly with analog gauges and classic automotive wiring harnesses, making it ideal for hot rod restoration, classic truck projects, and marine vessel upgrades. Installation requires a sender flange opening approximately 38mm in diameter; verify tank depth and sender neck geometry before ordering. The 90–4 OHM output range is standard across most vintage and aftermarket fuel gauges, ensuring plug-and-play compatibility without additional resistor modules or gauge modifications.