1959 Studebaker 4E2 Brake Light Switch Replacement Guide
Keep your classic Studebaker truck safe and reliable by addressing a faulty brake light switch.
- The 1959 Studebaker 4E2 uses a hydraulic pressure brake light switch, which is a known failure point.
- Symptoms include brake lights not working, staying on, or leaking fluid at the switch.
- New aftermarket parts from brands like Standard Ignition are the most practical replacement option.
- For improved long-term reliability, many owners convert to a modern mechanical-style switch.
Is Your Studebaker's Brake Light Switch Failing?
A bad brake light switch is a serious safety hazard. On a classic truck like the 1959 4E2, you won't get a warning on the dashboard. The first sign of trouble might be when someone points out that your brake lights aren't working. The symptoms are usually straightforward.
Key Failure Symptoms:
- Brake Lights Don't Turn On: This is the most critical failure. The switch no longer completes the circuit when you press the pedal, leaving drivers behind you unaware that you are stopping.
- Brake Lights Stay On: The switch can get stuck in the 'on' position, which confuses other drivers and will drain your battery when the truck is parked.
- Delayed or Flickering Lights: The original-style hydraulic switches may require significant pedal pressure to activate, meaning your lights might not work during gentle stops. Worn internal contacts can also cause flickering.
- Brake Fluid Leaks: Since it's part of the hydraulic system, a failing switch can become a source of brake fluid leaks.
Choosing the Right Aftermarket Switch
For a 1959 vehicle, finding a new original equipment (OEM) part from Studebaker is not a realistic option. Your primary choice is a new aftermarket part. While some specialists may offer New Old Stock (NOS) parts, these can be expensive and their internal seals may have degraded over time.
OEM vs. Aftermarket
For a simple part like a brake light switch on a classic vehicle, a quality aftermarket replacement is the most practical and reliable choice. Brands like Standard Ignition produce replacement switches that meet or exceed original specifications. These modern reproductions are manufactured with current quality control standards. A specialist Studebaker parts supplier lists a replacement switch (part number 666858) that fits all 1942-64 trucks. It's important to note that some reproduction hydraulic switches are not recommended for use with silicone brake fluid.
Replacement Costs
Replacing the brake light switch is one of the more affordable repairs for your Studebaker truck. The main cost is the part itself, as labor is minimal.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Switch | $15 - $36 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions (FAQ)
Where is the brake light switch located on a 1959 Studebaker 4E2?
The original brake light switch is a hydraulic pressure switch. It is not located on the pedal. You will typically find it screwed into the master cylinder or a junction block in the brake line system.
Is replacing the brake light switch a difficult job?
Replacing the original-style hydraulic switch is fairly easy. It involves disconnecting the wires and unscrewing the switch. However, because it's part of the brake's hydraulic system, you will need to bleed the brakes afterward to remove any air that entered the lines.
Why do so many owners upgrade to a mechanical switch?
Owners upgrade for reliability and safety. Hydraulic switches are a known failure point. A mechanical switch is not part of the hydraulic system, activates instantly with pedal movement, and is not affected by the type of brake fluid used.
Are there any recalls for the brake light switch on this truck?
There are no specific NHTSA recalls or Technical Service Bulletins (TSBs) found for the brake light switch on the 1959 Studebaker 4E2. This is common for vehicles of this era.
Technical Specifications
OEM Part Numbers: 666858
Hydraulic Pressure Activated, 1/8" NPT thread (common), 2-terminal connection (push-on or screw-on type)
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.