Chrysler 300 Ignition Lock Cylinder Guide for 2005-2007 Models
Having trouble turning your key or starting your car? Your ignition lock cylinder might be the problem.
- Failure is common and symptoms include a key that is hard to turn, gets stuck, or won't start the car.
- This guide covers the 2005-2007 Chrysler 300, not the earlier 300M model which uses different parts.
- Aftermarket brands like Dorman offer kits with a special tool to code the new cylinder to your old key, making DIY replacement easier.
- The issue is the mechanical cylinder, not the electronic key programming. You will reuse your original keys.
Is Your Chrysler 300 Ignition Lock Cylinder Failing?
If your key is getting harder to turn, gets stuck, or won't start the car, the ignition lock cylinder is a likely culprit. Over time, the metal tumblers inside the cylinder and the key itself wear down from constant use. This wear can cause the key to no longer align perfectly, leading to jamming or a complete failure to turn. 🎬 Watch this video if your key won't turn in the ignition. It's a common issue on many vehicles, including the 2005-2007 Chrysler 300.
Important Note on Vehicle Years
This guide is for the rear-wheel-drive Chrysler 300 sedan made from 2005 to 2007. The user prompt's mention of 2000-2004 refers to the Chrysler 300M, which is a different front-wheel-drive car and uses different parts. Always verify the part fitment for your specific year and model before ordering.
Symptoms of a Bad Ignition Lock Cylinder
- Key is Hard to Turn: You have to jiggle or force the key to get it to turn to the 'ON' or 'START' position.
- Car Won't Start: You turn the key, but nothing happens. The cylinder isn't making contact with the electronic ignition switch behind it.
- Key Gets Stuck: You can't remove the key from the ignition, even when the car is in Park. This can also be related to the shifter interlock cable, but a worn cylinder is a common cause.
- Issues Powering On: The key may turn, but the radio or dashboard lights don't come on as they should, indicating a problem in the connection between the cylinder and the switch.
Choosing the Right Aftermarket Replacement
When replacing the ignition lock cylinder on your 300, you have a few options. Since you're keeping your original keys and the anti-theft module, the focus is on the mechanical cylinder itself.
| Brand Tier | Brands | What to Expect |
|---|---|---|
| OEM / Premium Aftermarket | Mopar, Standard Ignition (SMP) | These brands are known for meeting or exceeding original equipment standards. Standard Motor Products, in particular, is trusted by professional technicians for its precision and durability. Expect a smooth, reliable fit and long service life, but at a higher price point. |
| Quality Aftermarket | Dorman | Dorman is a very popular aftermarket choice that offers good quality and innovative solutions. For the Chrysler 300, they offer kits that include a special tool to let you easily code the new cylinder to your existing key, which is a huge benefit for DIY installation. 🎬 See how to code a new cylinder to your existing key. This makes them a great balance of value and quality. |
| Value / Economy | Replacement, Skyward | These are often private-label brands that provide a functional part at the lowest cost. While they can be a good budget option, they may not have the same long-term durability or precise feel as premium brands. They are a viable choice if the budget is the primary concern. |
Pro Tip: It Might Not Be the Cylinder
Problems with the ignition system can also be caused by a bad ignition switch (the electronic part behind the cylinder) or a faulty Wireless Control Module (WCM), also known as the Sentry Key REmote Entry Module (SKREEM). If your key turns fine but the car has electrical starting issues, have the switch and module checked before replacing the cylinder.
Known Issues, Recalls, and TSBs
The 2005-2007 Chrysler 300 and its platform mates (Dodge Charger/Magnum, Jeep Grand Cherokee/Commander) were subject to several major ignition-related recalls. While these primarily targeted the electronic ignition switch and the key fob (FOBIK), the repair often involved replacing the lock cylinder as part of the complete assembly. The main issue was the risk of the key inadvertently moving from the 'RUN' to the 'ACC' or 'OFF' position while driving, causing the engine to stall and disabling airbags. If you are unsure if your vehicle had this recall service performed, contact a Chrysler dealer with your VIN.
Frequently Asked Questions
Do I need to program the new ignition lock cylinder?
No, the lock cylinder itself is purely mechanical. The programming is in your key and the vehicle's anti-theft module (WCM/SKREEM), which you will reuse. However, the new cylinder must be 'coded' to match your existing key. Some aftermarket kits, like those from Dorman, come with a tool to make this an easy DIY process.
Can I replace the ignition lock cylinder myself?
Yes, this is a DIY-feasible job for someone with basic tools and patience. The process involves removing the steering column shrouds, turning the key to the 'RUN' position, and pressing a release tab to pull the old cylinder out. The new cylinder then slides into place. The estimated time is about one hour. 🎬 Follow this step-by-step walkthrough to replace your ignition cylinder.
Will one key still work for my doors and ignition?
Yes. When you replace only the ignition lock cylinder and re-code it to your original key, that same key will continue to operate your door locks and trunk as before.
What is the difference between the lock cylinder and the ignition switch?
The lock cylinder is the mechanical tumbler assembly that your key fits into. The ignition switch is the electronic component located behind the cylinder. The cylinder's rotation physically moves the switch to send power to different systems. They are separate parts but work together.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4685719AI
This is the mechanical lock cylinder assembly. It does not include the electronic ignition switch or the anti-theft module (SKREEM/WCM), which are separate components. The cylinder must be coded to match the vehicle's existing keys upon installation.
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.
- Chrysler 300:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Chrysler 300 Ignition Lock Cylinder Failing?
- Important Note on Vehicle Years
- Symptoms of a Bad Ignition Lock Cylinder
- Choosing the Right Aftermarket Replacement
- Pro Tip: It Might Not Be the Cylinder
- Known Issues, Recalls, and TSBs
- Frequently Asked Questions
- 🎟️ Get 5% Off