1959 Studebaker 4E7 Starter Solenoid Replacement Guide
If your Studebaker truck just clicks or won't crank, your starter solenoid is the likely culprit.
- The starter solenoid on a 1959 4E7 is a remote-mounted 12-volt unit, usually on the firewall.
- A single, loud click without the engine cranking is the most definitive symptom of a bad solenoid.
- New aftermarket parts from a reputable brand like Standard Ignition are the best and most reliable replacement option.
- Replacement is a simple DIY task that can be completed in under an hour with basic hand tools.
Is Your Studebaker 4E7 Failing to Start?
A common point of failure in the starting system of a classic truck like the 1959 Studebaker 4E7 is the starter solenoid. Due to its simple but high-current job, the internal contacts can wear out or corrode over time, leading to frustrating no-start situations. Understanding the signs of a failing solenoid can save you time and get your truck back on the road.
Symptoms of a Bad Starter Solenoid
When a starter solenoid begins to fail, the symptoms are usually clear. You might experience one or more of the following issues:
- Single, Loud Click: The most common symptom. You turn the key, hear one loud "click" from the engine bay, but the engine doesn't crank. This usually means the solenoid is engaging but failing to pass the high current to the starter.
- No Sound at All: You turn the key and get nothing—no click, no crank. This can point to a completely failed solenoid or a problem in the low-current side of the circuit.
- Intermittent Starting: The truck starts fine one day but only clicks the next. This indicates the solenoid's internal contacts are worn and making a connection only some of the time.
- Engine Cranks Slowly: If the solenoid's contacts are corroded or burnt, they can create high resistance, preventing the starter from getting full power. This may cause the engine to crank over much slower than usual.
- Burning Smell or Smoke: If the solenoid is stuck or drawing too much current due to a fault, it can overheat. A burning plastic or electrical smell when trying to start the engine is a critical sign to stop and investigate immediately.
Choosing the Right Aftermarket Solenoid
For a 1959 vehicle, finding "New Old Stock" (NOS) OEM parts is extremely difficult and often expensive. Used original parts are a gamble due to their age. The most practical and reliable solution is a new aftermarket part from a reputable manufacturer.
Standard Ignition (Standard Motor Products): This is a well-established brand in the automotive aftermarket, known for producing quality ignition and electrical components for classic American vehicles. Forum discussions with former parts professionals confirm their long-standing reputation for quality, making them a trusted choice for parts like the starter solenoid. A new Standard Ignition solenoid benefits from modern manufacturing and materials while retaining the original fit and function.
Part Cost Comparison
| Part Type | Price Range |
|---|---|
| New Aftermarket (Standard Ignition) | $49.14 |
| New Old Stock (NOS) OEM | Not Commonly Available |
| Used OEM | Varies / Not Recommended |
Frequently Asked Questions
Where is the starter solenoid located on my 1959 4E7?
Unlike modern vehicles, the solenoid on your Studebaker truck is not attached to the starter. It is a remote-mounted unit, typically found bolted to the firewall in the engine bay or on an inner fender apron. This makes it relatively easy to access.
Is it the battery or the solenoid?
A rapid, machine-gun-like clicking noise often points to a weak battery. A single, strong click with no crank is the classic sign of a bad solenoid. Always ensure your battery is fully charged and the terminals are clean before diagnosing other parts.
Can I replace the starter solenoid myself?
Yes, this is a very DIY-friendly job for someone with basic tools. The process involves disconnecting the battery, removing a few nuts from the electrical posts, unbolting the old solenoid, and installing the new one in its place. The remote mounting makes access much simpler than a starter-mounted unit.
What is the difference between a 3-post and 4-post solenoid?
Your Studebaker likely uses a 3-post solenoid (two large, one small). Some universal replacements are 4-post. In most cases, one of the small posts on a 4-post solenoid can be left unused for a 3-wire setup. It is best to match the new part to the original configuration.
Technical Specifications
OEM Part Numbers: 1539716
Voltage: 12V, Mount Type: Remote (Fender/Firewall), Compatible Part (Standard Ignition): SS-581
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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.