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Brake Light Switch Guide for the 1961 Studebaker 6E10

Keep your classic Studebaker truck safe and its brake lights working reliably with the right information.

4 minutes to read 1961-1961 Studebaker 6E10
Difficulty
2/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$100
🚫 Do not drive — Driving without functional brake lights is illegal and extremely dangerous to you and other motorists.
Key Takeaways
  • The 1961 Studebaker 6E10 uses a hydraulic pressure switch on the master cylinder, not a mechanical switch at the pedal.
  • Failure symptoms include brake lights not working, staying on, or leaking fluid at the switch.
  • A new aftermarket switch from a reputable brand like Standard Ignition is the most practical and reliable replacement option.
  • Replacement is a simple DIY task, but bleeding the brakes afterward is a critical safety step.
The brake light switch on your 1961 Studebaker 6E10 is a critical safety component. Unlike modern vehicles that use a mechanical switch at the pedal, your truck uses a hydraulic pressure switch. This switch is screwed directly into the master cylinder. When you press the brake pedal, the building hydraulic fluid pressure activates the switch. This completes the electrical circuit and turns on your rear brake lights, signaling to other drivers that you are slowing down or stopping.

Understanding the Hydraulic Brake Light Switch in Your Studebaker

If the brake lights on your 1961 Studebaker 6E10 have stopped working, the brake light switch is a common and likely culprit. On these classic trucks, the switch is not a button near the pedal but a pressure-activated switch located on the master cylinder in the engine bay. This design was common for the era but is known for having reliability issues. The original-style hydraulic switches can fail, sometimes requiring significant pedal pressure to activate the lights, which means your lights may not turn on during gentle stops. They are also a potential source of brake fluid leaks over time.

Critical Safety Warning

Driving without functional brake lights is illegal and extremely dangerous. If you suspect your brake light switch has failed, diagnose and repair the issue before driving the vehicle. A non-working brake light switch is a critical safety failure.

Common Failure Symptoms

Before replacing parts, always check the simple things first: ensure your brake light bulbs are good and check the fuse for the brake light circuit.

  • Brake Lights Do Not Turn On: This is the most common and serious symptom. The switch fails to complete the circuit when you press the brakes.
  • Brake Lights Stay On: The switch can fail in the 'on' position, causing the brake lights to remain illuminated even when the pedal is not pressed, draining your battery.
  • Intermittent or Flickering Brake Lights: The switch may be failing, causing an inconsistent connection and flickering lights as you drive or press the pedal.
  • Brake Fluid Leak: Since it's a hydraulic part, the switch itself can develop leaks, which is a serious brake system issue. You may see brake fluid around the switch on the master cylinder.

Choosing the Right Aftermarket Brake Light Switch

For a 1961 vehicle, finding New Old Stock (NOS) OEM parts is difficult and often expensive. A new aftermarket part is the most practical and reliable choice for keeping your Studebaker on the road.

Brand: Standard Ignition (Part No. SLS27/SLS27T)

Standard Ignition (also known as Standard Motor Products or SMP) is a well-regarded aftermarket manufacturer. Their parts are designed to meet or exceed original specifications. The Standard Ignition SLS27 is a direct screw-in replacement for the original hydraulic switch. It is made with a robust brass housing and copper alloy conductors for durability and good electrical performance. Given the limited options for this classic application, the Standard Ignition switch is a dependable choice.

Pro Tip: Some Studebaker owners convert to a more modern mechanical switch at the brake pedal for improved reliability, but this requires custom fabrication. For a straightforward, correct repair, a new hydraulic switch like the Standard Ignition SLS27 is the recommended path.

Brake Light Switch Replacement Cost

Replacing the brake light switch is a cost-effective repair, especially if you do it yourself.

Part Type Estimated Cost
New Aftermarket (Standard Ignition) $15 - $20
Shop Labor $50 - $100

Note: Labor costs are an estimate and can vary by location. The job is simple, so it often falls under a shop's minimum one-hour labor charge.

Frequently Asked Questions (FAQ)

Where is the brake light switch located on my 1961 Studebaker 6E10?

The brake light switch is a hydraulic pressure switch located outside the cabin. You will find it screwed into the master cylinder under the hood. It will have two electrical wires connected to it.

Can I replace the brake light switch myself?

Yes, this is a very feasible DIY job for someone with basic tools. It involves disconnecting the wires, unscrewing the old switch, and quickly screwing in the new one to minimize brake fluid loss. However, it is highly recommended to bleed the brakes afterward to ensure no air has entered the system, which is critical for safety.

How do I test my old brake light switch?

After confirming the bulbs and fuse are good, you can test the switch. Unplug the two wires from the switch. Use a small jumper wire to connect the two wire terminals together (do not let the jumper touch any other metal). If the brake lights turn on, the switch is faulty. If they do not, the problem is elsewhere in the wiring.

Are there any recalls for the brake light switch on a 1961 Studebaker?

No, there are no NHTSA recalls for the 1961 Studebaker 6E10. The NHTSA database generally does not cover vehicles this old.

Technical Specifications

Type: Hydraulic Pressure Switch, Activation: Screw-in, Terminals: 2, Thread Size: 1/8-27

Wrenchy
Article researched & written by
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Meet Wrenchy → Updated Jul 21, 2026

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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