| Brand | Proform |
|---|---|
| Manufacturer Part Number | 66839 |
| Type | Engine Compression Test Kit |
| Warranty | Yes |
| UPC | 037995318391 |
Check the listing for details. Proform for Leakdown Tester Kit Dual Gauge Model with14mm Spark Plug Hole. Condition: New. Listed at 99.61 USD. Dual Gauge Model with14mm and 18mm Spark Plug Hole Adapters. The gauge records incoming air pressure, and the right gauge records individual cylinder pressure - and the difference is you leakdown. Includes 14mm spark plug adapter.