1965-1968 Jeep DJ6 Ignition Lock Cylinder and Switch Replacement Guide
Solve starting problems and secure your classic DJ6 with a new ignition assembly.
- Aftermarket parts are the only viable option, as new OEM parts are no longer available.
- Confirm your Jeep's model year and check if you need a 'stud terminal' (1965) or 'threaded stud' (1966-68) style switch.
- Always replace the lock cylinder and ignition switch as a complete assembly for best results.
- Failure can lead to a no-start condition or dangerous stalling while driving.
Is Your Jeep DJ6 Ignition Switch Failing?
The ignition switch in a classic vehicle like the DJ6 is a mechanical part that sees use every time you drive. Over decades, the internal contacts wear out and the lock cylinder can become sloppy. This can lead to frustrating and potentially unsafe situations. If you're having trouble starting your Jeep or the key feels loose, it's likely time for a replacement.
Key Symptoms of a Bad Ignition Switch
- Engine Doesn't Crank: You turn the key to the 'Start' position and nothing happens, or you only hear a single click. Power isn't reaching the starter solenoid.
- Key Hard to Turn or Remove: The mechanical lock cylinder tumblers may be worn or damaged, making the key stick or difficult to operate.
- Stalling After Starting: The engine fires up when you're holding the key in the 'Start' position but dies as soon as you release it to the 'Run' position. This indicates a bad contact in the switch for the run circuit.
- Intermittent Power to Accessories: Your radio, lights, or heater fan may cut out randomly while driving or only work when the key is wiggled. This points to worn contacts inside the switch.
- Vehicle Stalls While Driving: A worn switch can lose connection due to road vibrations, cutting power to the ignition system and shutting off the engine, which is a serious safety hazard.
Important: Check Your Year!
There is a small but critical difference between parts for these years. When ordering, verify the electrical connection type. Some listings indicate that 1965 models use a 'stud terminal', while 1966-1968 models use 'threaded studs'. Ordering the wrong one will require modification.
Choosing the Right Aftermarket Ignition Switch
For a vehicle of this age, new Original Equipment Manufacturer (OEM) parts are generally not available. The market consists of new aftermarket parts. Fortunately, the simple design of the DJ6 ignition switch means that aftermarket quality is usually sufficient.
Two common brands you will encounter are:
- Standard Ignition (Standard Motor Products): A well-regarded aftermarket brand known for producing reliable electronic components. For critical parts like an ignition switch, many mechanics prefer Standard when OEM isn't an option.
- Omix-Ada: A brand that specializes in Jeep parts, from classic to modern. They are a go-to for many restoration parts. While some forum users have mixed opinions on their parts for more complex applications, for a simple switch like this, their products are a viable option.
Pro Tip: It is highly recommended to replace the lock cylinder and the electrical switch as a single assembly. A new lock cylinder with a worn-out original switch (or vice-versa) is an unreliable combination. Since they are sold as a unit, you ensure all components are fresh and will work together properly.
| Brand Tier | Estimated Price |
|---|---|
| Standard Aftermarket (Omix-Ada, Standard) | $47.58 - $52.32 |
Frequently Asked Questions (FAQ)
Can I reuse my original keys with the new lock?
No. New ignition lock cylinders come with a new, unique set of keys. You will not be able to have the new lock re-keyed to match your old keys. You will now have a separate key for the ignition.
Is replacing the ignition switch a difficult job?
For a classic vehicle like the DJ6, this is generally a straightforward job for a DIY mechanic with basic tools. It involves removing the covers around the steering column or dash where the switch is mounted, disconnecting the battery, unplugging the electrical connector, and unbolting the old switch. No complex electronics are involved.
What's the difference between the lock cylinder and the ignition switch?
The lock cylinder is the mechanical part your key goes into. The ignition switch is the electrical part behind it that actually routes power. For the DJ6, these are almost always sold together as a single assembly, which is the recommended way to purchase and install them.
Are there any recalls for the 1965-1968 DJ6 ignition switch?
No. Searches of the National Highway Traffic Safety Administration (NHTSA) database and other sources show no specific recalls or Technical Service Bulletins (TSBs) for the ignition switch on the 1965-1968 Jeep DJ6. Recalls for ignition switches on other Jeep models are for vehicles made decades later.
Technical Specifications
Key distinction is the electrical connection type: 'stud terminal' for 1965 models and 'threaded studs' for 1966-1968 models.
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.