Ignition Lock Cylinder Guide for 1960-1964 Buick Roadmaster
If your key won't turn or your Roadmaster won't start, the ignition lock cylinder could be the problem.
- Failure is typically mechanical; symptoms include a key that is hard to turn, gets stuck, or won't start the car.
- New aftermarket parts are available from classic GM parts suppliers and are the most common replacement option.
- Many GM models from 1960-1964 share the same ignition lock cylinder, increasing your chances of finding a compatible part.
- Replacement is a feasible DIY project for most owners, requiring basic hand tools and about 30 minutes.
Symptoms of a Failing Ignition Lock Cylinder
When the ignition lock cylinder in your Roadmaster starts to fail, the signs are usually hard to ignore. Because this is a purely mechanical part from this era, the problems are physical. You won't see any warning lights, but you will feel the issue in your hand.
- Key is Hard to Insert or Turn: You might find that you need to jiggle the key or use extra force to get it into the lock or to turn it. This is often caused by worn-out internal tumblers.
- Key Gets Stuck: The key may go in and start the car, but it won't come back out easily, or at all. This can happen if the tumblers are damaged or misaligned.
- Car Won't Start: You can turn the key, but nothing happens. While this can be a symptom of many other issues (like a dead battery or bad starter), if the lock cylinder is completely broken, it won't properly engage the ignition switch behind it.
- Inconsistent Power: The car might start, but the key feels loose in the "ON" position. A worn cylinder might not hold the ignition switch firmly in place, leading to intermittent electrical contact.
Choosing a New Aftermarket Ignition Lock Cylinder
Finding new parts for a classic vehicle like a 1960-1964 Roadmaster can be a challenge. Unlike modern cars, you won't find dozens of brands competing. Your options are generally limited to specialty manufacturers who produce parts for classic GM vehicles.
OEM vs. Aftermarket: For a vehicle of this age, "OEM" parts are typically New Old Stock (NOS), which are original parts that were never installed and are very rare and expensive. Aftermarket parts are your most realistic option. Quality can vary, but reputable classic car part suppliers generally offer components that meet or exceed original specifications. Brands like Standard Motor Products and specialty suppliers like Fusick Automotive or JEGS offer lock cylinders designed for classic GM cars from this era. These parts are often made from die-cast zinc or brass, similar to the originals.
Pro Tip: Many GM vehicles from this period used similar ignition components. A lock cylinder listed for a 1960-1964 Chevrolet, Pontiac, or even another Buick model might be identical to the one in your Roadmaster. Always cross-reference part numbers or check with the supplier to confirm fitment.
Estimated Cost Comparison
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket | $30 - $70 |
| New Old Stock (OEM) | $100 - $250+ (if found) |
| Shop Labor | $75 - $150 |
Frequently Asked Questions
Do I need a locksmith to replace the ignition lock cylinder?
Not necessarily. On these older GM vehicles, replacing the cylinder is often a straightforward DIY job. You typically need to remove the steering column covers, insert the key, turn it to a specific position, and press a release pin to pull the old cylinder out. The new one slides in. However, some aftermarket cylinders come without keys and need to be keyed to match your existing door keys by a locksmith.
Are there any recalls on the 1960-1964 Buick ignition system?
No. While General Motors had significant recalls for ignition switch problems in the 2000s and 2010s, these issues do not apply to classic vehicles like the 1960-1964 Roadmaster. The systems in these older cars are much simpler and not associated with those later safety defects.
Will a lock cylinder from a different Buick model fit my Roadmaster?
There is a high probability. During this era, GM shared many parts across its brands and models. An ignition lock cylinder for a 1961-1964 Buick Special, a 1963-1964 Riviera, or even a 1964 Wildcat may be the correct part for your Roadmaster. It is crucial to check the compatibility list provided by the seller.
What tools do I need to replace the lock cylinder?
You will likely need a set of screwdrivers to remove trim panels, and a small pick or a small screwdriver to depress the release pin on the cylinder housing. It's also a good safety practice to disconnect the battery before starting any electrical work on your vehicle.
Technical Specifications
OEM Part Numbers: 1116592 1116610 12339180
Typically features a die-cast zinc core with brass tumblers and comes with two period-correct keys. The design is specific to non-column-shift automatic and manual transmission vehicles of the era.
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.