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Guide to the Starter Solenoid for the 1956 Studebaker E28 Truck

If your classic Studebaker truck clicks but won't start, the starter solenoid could be the problem.

4 minutes to read 1956-1956 Studebaker E28
Difficulty
1/5
Est. Time
0.75 hrs
DIY Doable?
✅ Yes
Shop Labor
$90-$150
Used OEM Price
$20-$50
🚫 Do not drive — The vehicle will not start reliably, or at all, leaving you stranded.
Key Takeaways
  • A single loud 'click' with no engine crank is the most common symptom of a failing starter solenoid.
  • Before replacing the solenoid, always confirm your battery is fully charged and all cable connections are clean and tight.
  • You must verify if your truck has a 12-volt or a 6-volt electrical system before ordering a replacement part.
  • For this vintage truck, a new aftermarket solenoid from a reputable brand like Standard Ignition is a reliable and cost-effective repair.
The starter solenoid on your 1956 Studebaker E28 is a small but powerful electrical switch. When you turn the ignition key, the solenoid receives a small electrical signal. It then closes a high-power circuit, allowing a large amount of electrical current to flow from the battery directly to the starter motor. This action also pushes a gear forward to engage the engine's flywheel, cranking the V8 engine so it can start. Without a working solenoid, the starter motor cannot get the power it needs to turn the engine over.

Is Your Studebaker E28 Starter Solenoid Failing?

A bad starter solenoid is a common reason for a classic truck to fail to start. The symptoms are often straightforward. Being able to spot them can save you time and trouble, helping you figure out if the solenoid is the part you need to replace.

Top Symptoms of a Bad Starter Solenoid

  • Single Loud Click, But No Crank: This is the most classic sign. You turn the key, hear one distinct 'click' from under the hood, but the engine doesn't turn over. This sound is the solenoid trying to engage but failing to send full power to the starter.
  • No Sound at All: You turn the key and get complete silence. If your battery is good and the dashboard lights come on, the solenoid may have failed completely and isn't even trying to close the circuit.
  • Intermittent Starting: Sometimes the truck starts perfectly, and other times it won't. This on-again, off-again behavior often points to a dying solenoid with worn internal contacts.
  • Starter Motor Spins Without Engaging Engine: In some rare cases, a weak solenoid might allow the starter motor to spin without properly engaging the flywheel. You'll hear the starter whirring, but the engine itself won't crank.

Pro Tip: Check the Basics First

Before blaming the solenoid, always check that your battery is fully charged and that the battery cable connections at the battery, engine block, and solenoid are clean and tight. Corrosion and loose connections can mimic solenoid failure.

Choosing a New Aftermarket Solenoid

For a vintage vehicle like the 1956 E28, finding "new" original equipment (OEM) parts is not possible. Your options are typically New Old Stock (NOS), used original parts, or new aftermarket parts.

  • New Old Stock (NOS): These are original parts that were never installed. They can be expensive and hard to find. While authentic, rubber and plastic components can degrade over decades.
  • Used OEM: Pulled from a donor vehicle. Quality varies greatly, and there's no guarantee how much life is left in the part.
  • New Aftermarket: These are brand-new parts made by companies other than the original manufacturer. For a component like a solenoid, a new aftermarket part is often the most reliable and cost-effective choice.

Brand Spotlight: Standard Ignition

Standard Motor Products (SMP), the company behind the Standard Ignition brand, has been a long-time player in the aftermarket world. For decades, they have been known for producing quality ignition and electrical components that are often considered as good as, or even better than, original parts. While some of their budget-friendly lines can have inconsistent quality, their primary red-box and premium 'Blue Streak' lines have a strong reputation among mechanics and restorers. For a classic Studebaker, a Standard Ignition solenoid is a solid, reliable choice.

Verify Your Truck's Voltage!

The mid-1950s was a transition period from 6-volt to 12-volt electrical systems. Your 1956 E28, especially with a V8 engine, most likely has a 12-volt system. However, you must confirm this before ordering. A 12-volt solenoid will not work correctly on a 6-volt system, and a 6-volt solenoid will quickly burn out if used on a 12-volt system. Check your battery or vehicle service manual to be certain.

Replacement Cost for a 1956 Studebaker E28 Starter Solenoid

Part Type Part Cost Shop Labor Cost Total Estimated Cost
New Aftermarket (Standard Ignition) $49.14 $90 - $150 $139.14 - $199.14
New Old Stock (NOS) $60 - $150+ (Variable) $90 - $150 $150 - $300+
Used OEM $20 - $50 (Variable) $90 - $150 $110 - $200

Cost estimates are for reference only and may vary based on location, part availability, and vehicle condition.

Frequently Asked Questions (FAQ)

Is it difficult to replace the starter solenoid on a 1956 Studebaker truck?

No, for a person with basic mechanical skills, this is a very feasible DIY job. On many vehicles from this era, the solenoid is mounted separately on the firewall or inner fender, making it easy to access and replace after disconnecting the battery. It typically involves removing a few wires and two mounting bolts.

How do I know if it's the starter or the solenoid?

A single, loud click with no crank strongly points to the solenoid. If you hear rapid clicking, grinding noises, or the engine cranks very slowly even with a good battery, the starter motor itself is more likely the culprit.

Can I drive with a bad starter solenoid?

No. If the solenoid is bad, your truck will not start reliably, if at all. You will be stranded. The part should be replaced as soon as it is diagnosed as faulty.

Are there any recalls for the 1956 Studebaker E28 starter solenoid?

No recalls were found for the starter solenoid on this vehicle. The NHTSA database generally does not track safety recalls for vehicles that are more than 15 years old.

Technical Specifications

Voltage: 12-Volt (Assumed, must be verified by owner)

Wrenchy
Article researched & written by
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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.

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