74499 Cap for Caldera frog system is for the following models.
| Make | Model | Date Range |
| Caldera | Tahitian | 2008 |
| Caldera | Niagara | 2008 |
| Caldera | Geneva | 2008 |
| Caldera | Hawaiian | 2008-2010 |
| Caldera | Kauai | 2008-2010 |
| Caldera | Moorea | 2008-2010 |
| Caldera | Martinique | 2008-2010 |
| Caldera | Palatino | 2010-Current |
| Caldera | Marino | 2010-Current |
| Caldera | Vanto | 2011-Current |
| Caldera | Aventine | 2008-Current |
| Caldera | Elation | 2008-2010 |
| Caldera | Tarino | 2013-Current |
| Caldera | C 30 | 2008-2009 |
| Caldera | C 45 | 2008-2009 |
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