1. Introduction
This instruction manual provides essential information for the proper use and care of your Ilco replacement key, model TM216, for Trimark RV locks. This key is pre-cut to match your existing lock/key number within the TM201 to TM250 series.
2. Setup and Key Identification
Upon receiving your Ilco replacement key, it is important to verify that the key number matches your existing Trimark RV lock. The key is designed to work immediately without further cutting or programming.

Figure 2.1: An example of an Ilco replacement key. Please note that while this image shows 'TM4', your specific key is model TM216, which will be marked accordingly.
2.1 Verifying Your Key Number
- Locate the key number on your existing Trimark RV lock or original key. This number should be in the format 'TMXXX' (e.g., TM216).
- Compare this number with the number specified for your purchased replacement key. Ensure they match.
- If there is a discrepancy, do not attempt to force the key into the lock. Contact customer support for assistance.
3. Operating Instructions
Using your Ilco replacement key is straightforward. Follow these steps for proper operation:
3.1 Inserting the Key
- Hold the key by its head.
- Gently insert the blade of the key into the keyway of the Trimark RV lock. Do not force the key. It should slide in smoothly.
3.2 Turning the Key
- Once fully inserted, turn the key clockwise or counter-clockwise, depending on whether you are locking or unlocking the mechanism.
- The key should turn freely without excessive resistance. If you encounter significant resistance, do not force it.
3.3 Removing the Key
After locking or unlocking, return the key to its original insertion position (usually vertical) before gently pulling it out of the lock.
4. Maintenance
Proper maintenance ensures the longevity and smooth operation of your key and lock.
- Keep Clean: Avoid exposing the key to dirt, dust, or corrosive substances. Clean the key periodically with a soft, dry cloth.
- Lubrication: If the lock mechanism becomes stiff, apply a small amount of graphite-based lubricant into the keyway. Avoid oil-based lubricants as they can attract dirt.
- Storage: Store spare keys in a dry, secure location away from extreme temperatures.
5. Troubleshooting
If you encounter issues with your replacement key, refer to the following troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Key does not insert fully | Incorrect key, debris in lock, bent key | Verify key number. Inspect key for damage. Check lock for obstructions. Do not force. |
| Key inserts but does not turn | Lock mechanism seized, incorrect key, worn lock pins | Apply graphite lubricant to lock. Verify key number. If issue persists, the lock may require professional service. |
| Key is difficult to remove | Key not in correct position, worn key or lock | Ensure key is in the vertical position before pulling. Gently wiggle while pulling. |
5.1 Legal Disclaimer
By ordering these keys, you are stating you are the owner of the corresponding lock.
6. Specifications
- Brand: Ilco
- Model: TM216
- Lock Type: Key Lock
- Material: Metal
- Item Dimensions (L x W x H): Approximately 2 x 1 x 1 inches
- Item Weight: Approximately 2 ounces
- UPC: 732068666651
- Compatibility: Trimark RV Locks (TM201 to TM250 series)
7. Warranty Information
Specific warranty details for this Ilco replacement key are not provided in the product information. Please refer to the retailer or manufacturer's website for any applicable warranty policies.
8. Customer Support
For further assistance or inquiries regarding your Ilco replacement key, please contact the retailer from whom you purchased the product. Manufacturer contact information may also be available on the Ilco official website.





