Studebaker 6E13D Brake Light Switch: A Comprehensive Guide for 1961 Models
Keep your classic 1961 Studebaker truck safe and reliable by understanding its unique brake light switch.
- The 1961 Studebaker 6E13D uses a hydraulic pressure switch, not a mechanical one at the pedal.
- The most common symptom of failure is brake lights not working, which is a critical safety issue.
- A new aftermarket switch from a brand like Standard Ignition is the most practical and reliable replacement.
- Replacement is a simple DIY task, but it is essential to bleed the brakes afterward to ensure safety.
Understanding the Hydraulic Brake Light Switch
If the brake lights on your 1961 Studebaker 6E13D truck have stopped working, the brake light switch is a common and likely suspect. Unlike modern vehicles, your Studebaker uses a hydraulic switch that relies on brake fluid pressure to operate. These original-style switches are known to have reliability issues. They can fail over time, sometimes only activating the lights under heavy braking, which is a significant safety risk. They can also become a source of brake fluid leaks.
Symptoms of a Failing Brake Light Switch
The signs of a bad brake light switch on a straightforward vintage truck like the 6E13D are usually very clear. Before assuming the switch is bad, always check your brake light bulbs and the fuse first. These are simpler to fix and should be ruled out before you proceed.
- Brake Lights Do Not Turn On: This is the most common and dangerous symptom. If the bulbs and fuse are good, the switch is the next part to check. The internal parts can wear out, preventing the switch from sending power to the lights.
- Brake Lights Stay On: Less common, but if the switch fails in the 'on' position, it will constantly power the brake lights. This can drain your battery when parked and confuse other drivers on the road.
- Flickering or Delayed Lights: If the lights flicker or only come on after you press the pedal hard, the switch is failing and needs immediate replacement.
Critical Safety Warning
Driving without functional brake lights is illegal and extremely dangerous. If you suspect your brake light switch has failed, you should not drive the vehicle until it is repaired.
Choosing the Right Aftermarket Part
For a 1961 vehicle, finding a "new" OEM part from Studebaker is not possible. Your options are a New Old Stock (NOS) part, a used part from a donor vehicle, or a new aftermarket part. For a simple but critical component like a brake light switch, a new aftermarket part is the most practical and reliable choice.
Standard Ignition (Standard Motor Products): This is the primary brand available for your truck. Standard is a well-known manufacturer that has been making ignition and electrical components for over 100 years. Their switches are designed to meet original equipment specifications and are made with copper alloy conductors for good electrical performance. Given the age of the vehicle and the critical safety function of this part, a new switch from a reputable brand like Standard Ignition is the recommended path.
Pro Tip: Mechanical Switch Conversion
Some Studebaker owners modify their trucks to use a more modern, reliable mechanical switch mounted at the brake pedal. This is a custom project that eliminates the hydraulic switch and its potential for leaks. However, for a direct and simple replacement, a new hydraulic switch is the easiest solution.
Estimated Replacement Costs
The cost to replace the brake light switch is very reasonable, especially if you do the work yourself. The main cost is the part itself, as labor is minimal.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $15 - $20 |
| New Old Stock (NOS) OEM | $30 - $75+ (If you can find one) |
| Used OEM | $20 - $50 (Varies by source) |
| Shop Labor | $100 - $200 |
Frequently Asked Questions (FAQ)
Where is the brake light switch located on my 1961 Studebaker truck?
The brake light switch is not inside the cab by the pedal. It is a hydraulic pressure switch screwed into the master cylinder or a nearby brake line junction block under the hood or on the frame. It will have two electrical wires connected to it.
How do I test my old brake light switch?
After checking the bulbs and fuse, you can easily test the switch. Find the switch and unplug the two wires. Use a small piece of wire to safely connect the two wire terminals together. If the brake lights turn on, the switch is bad and needs to be replaced. If they do not light up, the problem is in the wiring.
Is it difficult to replace this switch myself?
This is a very easy job for a DIY mechanic. It involves unplugging the wires and using a wrench to unscrew the old switch. Have the new switch ready to screw in immediately to minimize brake fluid loss. After replacing it, you MUST bleed the brakes to remove any air that entered the system. This final step is critical for safety.
Are there any recalls for this part?
No. There are no recalls or Technical Service Bulletins (TSBs) from the NHTSA for the brake light switch on a 1961 Studebaker. This is normal for a vehicle of this age.
Do I need to worry about silicone brake fluid?
Some sources claim that silicone brake fluid can damage these hydraulic switches. While other sources disagree, it is a known concern in the vintage car community. The part from specialist Stephen Allen's LLC specifically notes "*not for use with silicon brake fluid". If your system uses silicone fluid, be aware of this potential issue.
Technical Specifications
OEM Part Numbers: 666858
Hydraulic Pressure Activated, 1/8-inch NPT thread, 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.