Your Guide to the 1959 Studebaker 4E12D Brake Light Switch
Keep your classic Studebaker safe and visible by understanding how to replace a faulty brake light switch.
- A non-functioning brake light switch is a critical safety failure; do not drive the vehicle if the brake lights are not working.
- For a 1959 Studebaker, a new aftermarket switch from a brand like Standard Ignition is the most practical and reliable replacement option.
- The switch is typically a hydraulic pressure type located on the master cylinder, not a mechanical one by the pedal.
- Replacement is feasible for a DIY mechanic, but it requires handling brake fluid and may require bleeding the brakes, which is a crucial safety step.
Is Your Studebaker's Brake Light Switch Failing?
A faulty brake light switch on a classic truck like the 1959 Studebaker 4E12D is a major safety hazard. You won't get a warning light on your dashboard; you'll only find out when someone points it out, or during a routine check. The symptoms are usually very clear.
Top 3 Failure Symptoms
- Brake Lights Don't Turn On: This is the most dangerous symptom. The switch has failed and no longer completes the circuit when you press the brakes.
- Brake Lights Stay On: The switch can get stuck in the 'on' position, leaving your brake lights constantly lit. This will drain your battery and confuse other drivers.
- Inconsistent Lights: Sometimes the lights only work when you press the brake pedal very hard. This indicates the switch is failing and requires more hydraulic pressure than it should to activate.
Safety First: Check Bulbs and Fuses
Before you replace the switch, always check the simple things first. Make sure your brake light bulbs are not burned out and check the fuse for the brake light circuit. This can save you time and money.
Choosing the Right Aftermarket Switch
For a 1959 vehicle, finding original new parts from Studebaker is not a realistic option. Your main choices are New Old Stock (NOS), used original parts, or new aftermarket parts.
- New Old Stock (NOS): These are original parts that were never installed. They are very rare, can be expensive, and may have issues from decades of storage.
- Used OEM: A used part from another truck is an option, but its remaining lifespan is unknown.
- New Aftermarket: This is the most common and practical choice. Brands like Standard Ignition produce new switches that are readily available and reliable. Modern manufacturing often means these simple switches are made to high-quality standards, sometimes better than the originals.
Pro Tip: Some owners of classic Studebakers convert the original hydraulic pressure switch to a more modern mechanical switch that mounts near the brake pedal. This can be a more reliable long-term solution, especially if you have issues with leaking hydraulic switches.
Typical Replacement Costs
The cost to replace a brake light switch on a 1959 Studebaker is very reasonable, especially if you do the work yourself.
| Part Type | Cost Range |
|---|---|
| New Aftermarket (Standard Ignition) | $15 - $20 |
| New Old Stock (NOS) | $40 - $100+ (if found) |
| Used OEM | $20 - $50 (Varies) |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Is it hard to replace the brake light switch myself?
No, this is a job most DIY mechanics can handle. It involves locating the switch on the master cylinder, carefully unscrewing it, and screwing the new one in. You will need to have a container ready for any brake fluid that drips out and be prepared to bleed the brakes afterward to remove any air that entered the system. This is a critical step for safety.
Where is the brake light switch located?
On many older vehicles like the 1959 Studebaker, the brake light switch is not inside the cab by the pedal. It is a hydraulic pressure switch typically screwed directly into the master cylinder or a nearby brake line junction block under the hood or beneath the cab floor.
Are there any recalls for the brake light switch?
There are no recalls or technical service bulletins (TSBs) found in searches for the 1959 Studebaker 4E12D regarding the brake light switch. This is common for vehicles of this age.
What tools will I need?
You will typically need a wrench (often a 1-inch or adjustable wrench) to remove the old switch, a rag to clean up spilled brake fluid, and potentially tools for bleeding your brakes (like a flare nut wrench and a clear hose).
Technical Specifications
Hydraulic pressure-activated switch, 2-terminal design.
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.