Diagnose internal engine problems without unnecessary engine disassembly using the Milton® S-1259 Premium Differential Cylinder Pressure Tester. Designed for professional automotive diagnostics, this cylinder leak-down tester measures pressure loss between an engine cylinder and a calibrated reference to help technicians quickly evaluate cylinder integrity and pinpoint potential sources of compression loss.
The S-1259 helps identify common internal engine problems including worn or cracked piston rings, leaking intake or exhaust valves, scored cylinders, faulty head gaskets, and stripped spark plug bushings. By identifying where pressure is escaping, technicians can more accurately determine the source of an engine problem before beginning costly or time-consuming repairs.
Dual 2-1/2" gauges with protective rubber boots provide clear, reliable readings in both PSI and kg/cm². The pressure-regulated manifold provides controlled air delivery, while integrated quick-connect couplers allow components to be connected and disconnected efficiently during testing.
A 25-inch flexible hose provides additional reach when accessing difficult cylinder locations, while the included adapters accommodate a variety of small and large engine applications. The complete test set is housed in a durable storage box with precut foam, keeping gauges, hoses, adapters, and accessories organized and protected between uses.
For automotive technicians, engine builders, and maintenance professionals, the Milton® S-1259 provides a comprehensive solution for evaluating cylinder condition and diagnosing internal engine pressure loss.
Ideal Applications
Designed for automotive technicians, repair shops, engine builders, fleet maintenance operations, and serious DIY users, the Milton® S-1259 is ideal for cylinder leak-down testing, troubleshooting compression loss, evaluating engine condition, and identifying potential internal engine repairs before disassembly.
| Gauge Type | Dial/Analog |
| Key Feature | Dual 2-1/2" Gauges with Protective Boots (PSI and kg/cm²) & 25" Flexible hose |
| UPC | 30937514660 |
