OTC Tools 5609 OTC 5609 cylinder leak-down tester, dual gauge shows % leakage. Pinpoints leak source (rings / head gasket / intake / exhaust valve) by listening. Used by maintenance technicians and installation crews across industrial, marine and construction service.
| Model | 5609 |
| Method | Regulated-pressure leak rate |
| Range | 0-100% leakage |
| Accuracy | ±5% |
| MOQ | 1 |