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1955-1956 Studebaker E14 Brake Light Switch Replacement Guide

Understanding the simple but critical brake light switch in your classic Studebaker truck.

3 minutes to read 1955-1956 Studebaker E14
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$50-$75
Used OEM Price
Varies
🚫 Do not drive — Driving without functional brake lights is illegal and extremely dangerous for you and other drivers.
Key Takeaways
  • The E14 uses a hydraulic pressure switch located on the master cylinder or frame, not a mechanical one by the pedal.
  • Failure is a critical safety issue; do not drive a vehicle with non-functioning brake lights.
  • Replacement is a fast and easy DIY job for most owners, typically taking under 30 minutes.
  • A new aftermarket switch from a reputable brand like Standard Ignition is the most reliable and cost-effective solution.
The brake light switch on your 1955-1956 Studebaker E14 is a vital safety part. Unlike modern vehicles that use a mechanical switch at the brake pedal, your truck uses a hydraulic pressure switch. This switch is typically screwed into the brake master cylinder or a nearby brake line junction on the frame. When you press the brake pedal, the rising pressure of the brake fluid activates the switch. This action closes an electrical circuit, sending power to the brake lights at the rear of your truck, signaling to other drivers that you are slowing down.

Is Your Studebaker's Brake Light Switch Failing?

A bad brake light switch on a classic truck like the E14 is a serious safety hazard. Since there are no dashboard warning lights for this system, you'll only discover a problem by physically checking the lights or when someone points it out. The symptoms are straightforward.

Key Failure Symptoms

  • Brake Lights Do Not Turn On: This is the most dangerous symptom. If you've already checked that the bulbs and fuse are good, the switch is the most likely cause. The internal parts of the switch can fail, preventing it from sending power to the lights.
  • Brake Lights Stay On: The switch can also fail in the 'on' position, causing the brake lights to remain lit even when you're not braking. This can confuse other drivers and will drain your battery when the truck is parked.
  • Flickering or Delayed Brake Lights: An old or worn-out switch might make a poor connection, causing the lights to flicker or only come on after you press the brake pedal very hard. This is a sign of imminent failure.

Choosing the Right Aftermarket Switch

For a vehicle from the 1950s, original equipment (OEM) parts from Studebaker are no longer in production. Your main option is a new aftermarket part. New Old Stock (NOS) parts are extremely rare and can be unreliable after decades in storage. Fortunately, modern aftermarket switches are both affordable and dependable.

Brand Spotlight: Standard Ignition

Standard Ignition (also known as Standard Motor Products) is a well-regarded brand that has been trusted by mechanics for many years. Their replacement switches are manufactured to meet or exceed original specifications, often using modern materials for better durability and a longer service life. For a classic truck, a new switch from a quality manufacturer like Standard is the most practical and reliable choice.

Pro Tip: Quick Installation

When replacing this hydraulic switch, have the new part in your hand and ready to go before you fully unscrew the old one. Swap them quickly to minimize the amount of brake fluid you lose. This can help you avoid the need to bleed the brakes afterward.

Brake Light Switch Replacement Costs for 1955-1956 Studebaker E14

Part Type Estimated Cost
New Aftermarket (Standard Ignition) $15.52
New OEM (NOS) Unavailable / Varies widely
Used OEM Varies
Shop Labor $50 - $75

Cost estimates are for parts and labor only and do not include taxes, shop supplies, or fees.

Frequently Asked Questions

Where is the brake light switch located on my Studebaker E14?

The brake light switch is not inside the cab. Look for a small, two-wire switch screwed directly into the brake master cylinder or a junction block on the truck's frame where brake lines meet.

How can I test the brake light switch?

After confirming the bulbs and fuse are good, locate the switch. Unplug the two wires connected to it. Use a small jumper wire to connect the two terminals of the wiring harness plug together. If the brake lights turn on, the switch is bad and needs to be replaced. If they do not light up, you have a wiring or power supply issue elsewhere.

Is this a difficult part to replace myself?

No, this is a very easy job for most DIY mechanics. It requires basic hand tools to unscrew the old switch and screw in the new one. The entire process usually takes less than 30 minutes. Just be prepared for a small amount of brake fluid to drip out.

Are there any recalls for the Studebaker E14 brake light switch?

No recalls or Technical Service Bulletins (TSBs) from the NHTSA were found related to the brake light switch for this vehicle. This is normal for vehicles of this era.

Technical Specifications

Hydraulic Pressure Activated, Screw-In, 2-Terminal

Wrenchy
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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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