Dorman Universal Fuel Level Sending Unit Kit 55818 — Replacement fuel sender, calibrated 240Ω–33Ω

The Dorman 55818 Universal Fuel Level Sending Unit Kit is a direct-fit replacement sender that restores accurate fuel gauge readings for compatible vehicles.

If the fuel gauge in your vehicle is giving incorrect or no readings, the sending unit inside the tank is a common culprit. The Dorman 55818 is built to replicate the fit and function of many original equipment senders, using durable materials and a calibrated resistance range so your gauge can read empty-to-full more reliably. This kit offers a cost-conscious alternative to dealership parts while meeting the mechanical needs of specified applications.

How does this sending unit restore a faulty fuel gauge?

This sender replaces the worn or failed original component that measures fuel level and transmits that signal to the dashboard gauge. It provides a calibrated resistance change across its travel so the gauge can interpret tank level accurately. Installation returns the electrical feedback loop your vehicle expects, resolving erratic or static readings.

• Direct replacement design to match original mounting and electrical connection points.
• Calibrated resistance values: 240 ohms at empty, 33 ohms at full.
• Replaces units with internal sensor failures to restore gauge operation.

What are the important specifications and build details?

The Dorman sender is constructed from quality materials for long service life and reliable operation in the fuel tank environment. It’s engineered to match OEM fitment where specified so that installation requires minimal modification. Electrical characteristics are tuned to typical gauge systems used on compatible vehicles.

• Electrical range: 240 Ω (empty) to 33 Ω (full) for standard gauge compatibility.
• Robust materials and corrosion-resistant components for fuel exposure.
• Designed by a U.S.-based product engineering team with extensive automotive experience.

How difficult is installation and what should I prepare?

Installation complexity will vary by vehicle but the product is intended as a direct-fit replacement on specified models, minimizing the need for modifications. Basic tools and safe access to the fuel tank or sending unit access panel are typically required. Follow safety precautions for fuel-handling when working in and around the tank.

• Requires access to the sending unit mounting or fuel pump access plate.
• Standard hand tools and safe fuel-handling practices needed.
• Consult vehicle service manual for torque specs and connector locations.

Who is this for? The Dorman 55818 Universal Fuel Level Sending Unit Kit is aimed at DIY mechanics, independent repair shops, and fleet owners who need a dependable, budget-friendly replacement for a failed fuel level sender. It’s suitable for vehicles whose original senders have stopped providing accurate readings and where a direct-fit aftermarket solution is preferred over costly dealer parts. If you need consistent gauge performance and a unit engineered to mirror OEM characteristics, this kit provides a practical option.