Frequently Asked Questions About International IH Cabover Fuel Tank Senders

Will these fuel tank senders fit my specific International Cabover model and year?

Our fuel tank senders are designed to fit most International IH Cabover models from the 1960s through 1990s, including the CO Loadstar, Transtar, and 9670 series. However, sender compatibility depends on your specific tank configuration and mounting style. We recommend checking your existing sender's ohm range (typically 33-240 ohms or 0-90 ohms) and mounting pattern before ordering. If you're unsure, contact us with your VIN or model information for verification.

What's the difference between mechanical and electric fuel senders, and which one do I need?

Mechanical senders use a float arm connected directly to your dash gauge through a cable, while electric senders use a variable resistor to send electrical signals to your gauge. Most International Cabovers from 1970 onward use electric senders. Check your dash gauge - if it has two wire terminals, you need an electric sender. Single-terminal or direct-cable connections indicate a mechanical system. Electric senders are more common and generally more reliable for these applications.

How difficult is it to install a new fuel tank sender, and what tools will I need?

Installation typically takes 1-2 hours and requires basic hand tools. You'll need to drain your fuel tank first, then remove the old sender unit (usually held by 5-6 bolts). Common challenges include rusted bolts and ensuring proper gasket seal. Essential tools include a socket set, screwdrivers, and possibly a drift punch for stubborn lock rings. Always use a new gasket during installation and apply anti-seize to the bolts. Some models require dropping the tank for access.

Why is my new fuel sender giving inaccurate readings, and how can I fix it?

Inaccurate readings usually stem from three issues: incorrect ohm range for your gauge, improper float arm adjustment, or poor ground connection. First, verify your sender matches your gauge's ohm requirements. Next, check that the float arm moves freely through its full range without hitting the tank walls. Ensure all electrical connections are clean and tight, especially the ground wire. Some aftermarket senders may require bending the float arm to match your tank depth.

What's the typical lifespan of these fuel senders, and are OEM or aftermarket options better?

Quality fuel tank senders typically last 10-15 years under normal conditions. OEM senders, when available, offer exact fit and proven reliability but can be expensive and hard to find for older Cabovers. Aftermarket options from reputable manufacturers often provide equal performance at lower cost, with many featuring upgraded materials like stainless steel components. Look for senders with brass floats rather than plastic, as they resist fuel degradation better over time.