1959 Studebaker 4E7D Starter Solenoid Replacement Guide
Don't let a bad starter solenoid keep your classic 1959 Studebaker 4E7D off the road.
- The starter solenoid on the 1959 4E7D is a separate, fender-mounted part, making replacement easier and cheaper than a modern starter/solenoid assembly.
- Symptoms are usually a loud single click with no crank, or no sound at all. Always check the battery first.
- The primary aftermarket replacement is the Standard Ignition SS581, which has mixed reviews regarding out-of-the-box quality.
- There are no recalls or TSBs from the NHTSA for this part on your truck.
Is Your Studebaker's Starter Solenoid Failing?
A faulty starter solenoid is a common reason for a no-start condition in classic trucks like the 1959 Studebaker 4E7D. Because of its simple design, the signs of failure are usually straightforward. Understanding these symptoms can save you from unnecessarily replacing a good starter motor or battery.
Symptoms of a Bad Starter Solenoid
- Loud Single Click: You turn the key and hear one loud "CLICK" from under the hood, but the engine doesn't crank. This is the most common symptom, indicating the solenoid is trying to work but failing to send power to the starter.
- No Sound at All: You turn the key and get complete silence. If your battery is good and the lights on your dash work, the solenoid may have failed completely and isn't even trying to engage.
- Intermittent Starting: The truck starts fine one day but refuses to the next. This can point to worn internal contacts within the solenoid that only make a connection sometimes.
- Starter Runs Continuously: In a rare but serious failure, the solenoid's internal contacts can weld themselves together. This will cause the starter motor to keep running even after the engine has started and you've released the key. This can severely damage the starter.
Warning: Check Your Battery First
Many symptoms of a bad solenoid, like a clicking sound or a slow crank, can also be caused by a weak or dead battery, or corroded battery cables. Always test your battery and clean your cable connections before replacing the solenoid.
Choosing the Right Aftermarket Solenoid
For a 1959 vehicle, new Original Equipment Manufacturer (OEM) parts are no longer produced. Your options are limited to New Old Stock (NOS), used original parts, or new aftermarket parts. This guide focuses on new aftermarket replacements, which are readily available and affordable.
Brand Spotlight: Standard Ignition (SS581)
The most common aftermarket solenoid available for the 1959 Studebaker 4E7D is the Standard Ignition part number SS581. Standard Motor Products is a long-established company that produces a wide range of automotive parts.
However, owner feedback on this specific part is mixed. While many users report it as a perfect fit that solves their starting problems, a notable number of reviews mention receiving units that were defective out of the box. Reported defects include solenoids that were stuck in the 'on' or 'off' position. It is a good practice to test the new solenoid with a multimeter before installation if you have the tools and knowledge to do so.
Pro Tip: Installation
Replacing this solenoid is a straightforward job. It's typically mounted to the inner fender wall. First, disconnect the negative battery cable. Use a wrench to remove the nuts holding the wires onto the solenoid's posts. Take a picture with your phone first to remember where each wire goes. Then, unbolt the solenoid from the fender and install the new one in its place, reattaching the wires and battery cable.
Frequently Asked Questions (FAQ)
Where is the starter solenoid located on my 1959 Studebaker 4E7D?
On most classic trucks from this era, the starter solenoid is not attached to the starter motor. Instead, it is a remote-mounted relay located on the inner fender or firewall in the engine bay. It's a small cylindrical component with several threaded posts for electrical connections.
Do I need to replace the whole starter?
Not usually. Since the solenoid is a separate part on your Studebaker, you can replace just the failed solenoid without needing to touch the starter motor itself. This makes the repair much cheaper and easier than on modern vehicles where the two are often a single unit.
Is a clicking noise always the solenoid?
A single, loud click usually points to the solenoid. However, a rapid-fire series of clicks often indicates a battery that is too weak to turn the starter motor. Always check the battery's charge and the condition of your battery cables before buying a new solenoid.
Are there any recalls on the 1959 Studebaker 4E7D for this part?
No. There are no official recalls or Technical Service Bulletins (TSBs) from the National Highway Traffic Safety Administration (NHTSA) for the starting system on this vehicle.
Technical Specifications
OEM Part Numbers: 1539716
Voltage: 12V, Terminal Count: 4, Mounting: Remote/Fender
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.