Introduction
This manual provides instructions for the installation, operation, and maintenance of the Xspeedonline DL15802 Door Lock Cylinder with Keys. This product is designed as a direct replacement for compatible vehicle models, ensuring reliable door locking functionality.
Product Overview & Package Contents
The Xspeedonline DL15802 Door Lock Cylinder with Keys is a durable, metal-constructed replacement part for vehicle door locking mechanisms. It is engineered for a precise fit and long-lasting performance.
Package Contents:
- 1 Pair of Door Lock Cylinders
- 2 Keys
- Associated installation hardware (retainer clips, gaskets)

Image showing the complete package contents: two door lock cylinders, two keys, two rubber gaskets, and four metal retainer clips.
Video demonstrating the components of the Xspeedonline DL15802 Door Lock Cylinder with Keys, including the cylinders, keys, and installation hardware.
Vehicle Compatibility
This door lock cylinder set is compatible with a wide range of General Motors vehicles. Please verify your vehicle's make, model, and year against the list below to ensure proper fitment.
Compatible Models (Partial List):
- For Chevrolet S10 Pickup 1982-1993
- For Buick Century 1973-1996
- For Buick Electra 1965-1990
- For Chevrolet Astro Van 1985-1995
- For Chevrolet Camaro 1967-1969, 1979-1992
- For Chevrolet Caprice 1966-1970, 1976-1996
- For GMC Jimmy (S-Series) 1983-1994
- For GMC Sonoma S15 1982-1993
- For Cadillac Deville 1962-1993
- For Cadillac Eldorado 1962-1991
Note: This is a partial list. Refer to the product description for a comprehensive list of compatible vehicles.
Installation Instructions
Installation of the door lock cylinder requires basic automotive tools and mechanical knowledge. If you are unsure about any step, it is recommended to seek professional assistance.
Required Tools:
- Screwdriver set
- Panel removal tool (plastic pry tool)
- Pliers
Step-by-Step Guide:
Preparation: Ensure the vehicle is parked on a level surface with the engine off. Gather all necessary tools and the new door lock cylinder set.
Remove Door Panel: Carefully remove the interior door panel to access the lock mechanism. This typically involves removing screws and prying clips. Refer to your vehicle's service manual for specific instructions on door panel removal.
Locate and Disconnect Old Lock Cylinder: Identify the existing door lock cylinder. Disconnect any rods or linkages attached to the cylinder and remove the retainer clip holding it in place.
Remove Old Lock Cylinder: Gently pull the old lock cylinder out from the exterior of the door.
Install New Lock Cylinder: Insert the new Xspeedonline DL15802 door lock cylinder into the door from the exterior. Ensure it seats correctly.
Secure New Lock Cylinder: Attach the new retainer clip (provided) to secure the lock cylinder in place. Reconnect any rods or linkages that were previously disconnected.
Test Functionality: Before reattaching the door panel, test the new lock cylinder with the provided key to ensure it operates smoothly and locks/unlocks the door correctly.
Reinstall Door Panel: Once functionality is confirmed, carefully reattach the interior door panel, ensuring all clips and screws are properly secured.

Visual guide illustrating the general steps for door lock cylinder replacement: picking the lock, removing the lock core, and displaying the internal door lock construction.
Operating Your Door Lock Cylinders
To operate the door lock, insert the provided key fully into the lock cylinder. Turn the key clockwise to lock the door and counter-clockwise to unlock the door. Ensure the key turns smoothly without excessive force.

Close-up view of the door lock cylinders and keys, highlighting the keyway and key design.
Maintenance
To ensure long-term performance and smooth operation of your door lock cylinders, consider the following maintenance tips:
- Lubrication: Periodically apply a small amount of graphite lubricant or a silicone-based spray lubricant into the keyway. Avoid oil-based lubricants as they can attract dirt.
- Cleaning: Keep the keyway free from dirt and debris. If the lock becomes stiff, try cleaning it with a specialized lock cleaner before lubricating.
- Key Care: Avoid using bent or damaged keys, as this can damage the internal mechanism of the lock cylinder.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Key does not insert fully | Obstruction in keyway | Inspect keyway for debris. Use compressed air or a lock cleaner. |
| Key turns but door does not lock/unlock | Disconnected or damaged linkage | Re-check internal door mechanism and linkages. Professional inspection may be required. |
| Lock cylinder is stiff or hard to turn | Lack of lubrication or internal wear | Apply graphite or silicone lubricant to the keyway. If problem persists, consider professional service. |
Product Specifications
- Model Number: DL15802
- Manufacturer Part Number: DL15802
- Material: Metal
- Placement: Vehicle Right and Left Doors
- Included Components: 1 Pair Door Lock Cylinder with 2 Keys, Retainer Clips, Gaskets
- Color: Silver
- Weight: Approximately 0.05 Kilograms
- Brand: Xspeedonline

Image displaying the included retainer clips and gaskets, essential components for securing the door lock cylinders.
Warranty and Support
For warranty information or technical support regarding your Xspeedonline DL15802 Door Lock Cylinder with Keys, please contact Xspeedonline directly through their official customer service channels. Keep your purchase receipt as proof of purchase for any warranty claims.