Fuel Level Senders

Fuel Level Senders: the part that tells your gauge how much fuel is left

A fuel level sender is the variable resistor that lives in the tank or fuel cell and reports how much fuel is above it. A float rides the fuel surface, moving an arm across a resistance track; that changing resistance drives the needle on your gauge or the reading on a digital display. When you swap a fuel cell, build a custom surge tank, or replace a sender that reads full when the tank is empty, this is the part you need. Getting the ohm range and the length right is the whole job - the wrong sender reads garbage no matter how good the gauge is.

What we stock

This is a focused category: 3 fuel level senders in stock right now from 2 brands, Radium Engineering and AutoMeter. Current pricing runs from $78.53 to $113.67 - that is the live range for what is on the shelf, not a standing promise. Radium supplies two SAE 0-90 ohm shrouded senders differing in length: an 8.0-inch unit and an 11.7-inch unit. AutoMeter offers a universal fuel level sender at the low end of the range.

How to choose

Two things decide it: resistance range and length. The Radium senders are 0-90 ohm SAE units - match that to a gauge or ECU input expecting the same range. Length matters because the float arm has to reach the fuel across the depth of your tank or cell; the 8.0-inch Radium suits a shallower installation, the 11.7-inch suits a deeper one. The AutoMeter universal sender is the option when you want to trim and set the range to your own tank rather than buy to a fixed length. If your gauge cluster is AutoMeter, pairing brand-to-brand keeps the range assumptions simple. If you are working around a Radium fuel setup, the shrouded SAE senders drop into that world.

What else you need with it

A sender is one piece of a fuel system. If you are in the tank anyway, look at Fuel Pumps, and plan the plumbing with Fittings and Adapters so your sender port, feed and return all thread up correctly. If the job is a broader engine refresh, browse the rest of the Engine Components section - Oil Filters, Radiators and Gasket Kits are all stocked alongside these senders.

Fitment help and ordering

These senders are listed without vehicle-specific fitment data, so confirm ohm range and length against your gauge and tank before you buy - if you are unsure, call our fitment line at 813-535-5801. All orders ship with free shipping, and Affirm and Katapult financing is available at checkout. Questions on any of the three senders can go through our contact page.

Fuel Level Senders: the part that tells your gauge how much fuel is left

A fuel level sender is the variable resistor that lives in the tank or fuel cell and reports how much fuel is above it. A float rides the fuel surface, moving an arm across a resistance track; that changing resistance drives the needle on your gauge or the reading on a digital display. When you swap a fuel cell, build a custom surge tank, or replace a sender that reads full when the tank is empty, this is the part you need. Getting the ohm range and the length right is the whole job - the wrong sender reads garbage no matter how good the gauge is.

What we stock

This is a focused category: 3 fuel level senders in stock right now from 2 brands, Radium Engineering and AutoMeter. Current pricing runs from $78.53 to $113.67 - that is the live range for what is on the shelf, not a standing promise. Radium supplies two SAE 0-90 ohm shrouded senders differing in length: an 8.0-inch unit and an 11.7-inch unit. AutoMeter offers a universal fuel level sender at the low end of the range.

How to choose

Two things decide it: resistance range and length. The Radium senders are 0-90 ohm SAE units - match that to a gauge or ECU input expecting the same range. Length matters because the float arm has to reach the fuel across the depth of your tank or cell; the 8.0-inch Radium suits a shallower installation, the 11.7-inch suits a deeper one. The AutoMeter universal sender is the option when you want to trim and set the range to your own tank rather than buy to a fixed length. If your gauge cluster is AutoMeter, pairing brand-to-brand keeps the range assumptions simple. If you are working around a Radium fuel setup, the shrouded SAE senders drop into that world.

What else you need with it

A sender is one piece of a fuel system. If you are in the tank anyway, look at Fuel Pumps, and plan the plumbing with Fittings and Adapters so your sender port, feed and return all thread up correctly. If the job is a broader engine refresh, browse the rest of the Engine Components section - Oil Filters, Radiators and Gasket Kits are all stocked alongside these senders.

Fitment help and ordering

These senders are listed without vehicle-specific fitment data, so confirm ohm range and length against your gauge and tank before you buy - if you are unsure, call our fitment line at 813-535-5801. All orders ship with free shipping, and Affirm and Katapult financing is available at checkout. Questions on any of the three senders can go through our contact page.