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1941 Hudson Commodore Custom Series 15 Brake Light Switch Guide

Keep your classic Hudson safe by ensuring your brake lights work every time you hit the pedal.

3 minutes to read 1941-1941 Hudson Commodore Custom Series 15
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$75-$150
Used OEM Price
null
🚫 Do not drive — It is illegal and extremely dangerous to drive a vehicle without functioning brake lights.
Key Takeaways
  • A faulty brake light switch is a critical safety failure that must be addressed immediately.
  • For a 1941 Hudson, a modern aftermarket switch like the Standard Ignition SLS-27 is the most practical and reliable replacement option.
  • Symptoms include brake lights that don't work, stay on, or flicker.
  • Replacement is a simple and inexpensive job suitable for most DIY mechanics.
The brake light switch on your 1941 Hudson Commodore is a simple but critical safety component. It is a mechanical switch connected to the brake pedal. When you press the brake pedal, the switch closes an electrical circuit. This action sends power to your rear brake lights, signaling to other drivers that you are slowing down or stopping. A functioning switch is essential for preventing rear-end collisions and is required for your vehicle to be road-legal.

Symptoms of a Failing Brake Light Switch

A brake light switch is a simple part, and its failure symptoms are usually straightforward. If you notice any of these signs, you should inspect the switch immediately.

  • Brake Lights Don't Work: The most common and dangerous symptom is when your brake lights fail to illuminate when you press the brake pedal. This is a critical safety failure.
  • Brake Lights Stay On: The switch can also fail in the 'on' position. This will keep your brake lights constantly lit, which can confuse other drivers and will drain your battery when the car is parked.
  • Intermittent Brake Lights: If the switch's internal contacts are worn or corroded, your brake lights might flicker or only work sometimes when you press the pedal. This is also a serious safety issue.

Choosing the Right Aftermarket Part

For a vehicle like the 1941 Hudson Commodore, finding original "New Old Stock" (NOS) parts is nearly impossible and often very expensive. The most practical and reliable choice is a modern, high-quality aftermarket replacement.

Aftermarket Brand Spotlight: Standard Ignition

Brand Quality Assessment
Standard Ignition (SLS-27) Standard Motor Products (SMP) has been a trusted name in automotive parts for decades. Their SLS-27 switch is a common replacement for many classic cars, including the 1941 Hudson. These switches are made with modern materials, such as brass housings and copper alloy conductors, to ensure durability and reliable electrical performance. They are a dependable choice for keeping your classic on the road safely.

Recalls and Technical Service Bulletins (TSBs)

There are no official NHTSA recalls or Technical Service Bulletins for the brake light switch on a 1941 Hudson Commodore Custom Series 15. The systems for modern recalls and TSBs were not in place when the vehicle was manufactured.

Estimated Replacement Costs

The cost to replace the brake light switch is very reasonable, especially if you can do the work yourself.

Part Type Part Cost Shop Labor Cost
New Aftermarket (Standard Ignition) $15.52 $75 - $150
New Old Stock (OEM) Varies, typically rare and expensive
Used OEM (from a parts car) Varies, not recommended due to age

Pro Tip: Before replacing the switch, always check the simple things first. Make sure your brake light bulbs are not burned out and that the fuse for the circuit is good. This can save you time and money.

Frequently Asked Questions (FAQ)

Where is the brake light switch located on my 1941 Hudson?

The brake light switch is typically a mechanical switch located on the brake pedal support bracket, under the dashboard. It is activated by the movement of the brake pedal arm.

Can I replace the brake light switch myself?

Yes, this is a very DIY-friendly job for most classic car owners. It usually involves disconnecting the battery, unplugging the two wires from the old switch, unscrewing the switch from its bracket, and installing the new one in reverse order. Basic hand tools are all that's required.

Why do brake light switches fail?

Failure is almost always due to age and use. The internal mechanical and electrical components simply wear out over time. Corrosion from moisture can also cause the switch to fail.

Is the Standard Ignition SLS-27 a direct fit?

Yes, the Standard Ignition SLS-27 is listed as a compatible replacement for the 1941 Hudson Commodore Custom Series 15. It is designed to be a reliable, modern substitute for the original part.

Technical Specifications

Mechanical, pedal-activated switch with two screw-in terminals.

Wrenchy
Article researched & written by
Go-Parts' AI research assistant. Every article is backed by live web research, verified OEM data, and real technician knowledge — so you get accurate, up-to-date information you can trust.
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.

Year Coverage
This article covers the Brake Light Switch for:
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