Two-gauge pressure test kit with a 0-400 PSI gauge for transmission line pressure and a 0-100 PSI gauge for engine oil, plus a 72-inch hose and 13 adapters.
When a transmission slips, flares between gears or shifts late, the first real question is whether it is making line pressure. This kit answers it with numbers. Thread the right adapter into the case pressure test port, connect the 72-inch hose, and read hydraulic pressure directly instead of guessing from symptoms.
It carries two separate 3.5-inch gauges. The 0-400 PSI gauge handles automatic transmission line pressure, including the higher readings you see at stall and under full throttle when the boost valve is commanding rise. The 0-100 PSI gauge gives finer resolution for engine oil pressure checks, so a low-pressure engine reading is not lost at the bottom of a high-range dial. Rubber boots protect both gauges on the bench and under the car.
The long hose lets you route the gauge into the cab and watch pressure on a road test through the 1-2, 2-3 and 3-4 shifts. A worn pump, a stuck pressure regulator valve, a weak EPC/line pressure solenoid or a clutch circuit leaking past a cut seal all show up as a reading that is low, will not rise, or drops off when a particular clutch applies. Compare what you see against the service manual spec for that unit before you condemn anything.
The 13 brass and aluminum adapters cover common NPT, BSPT and metric port threads, including M8 x 1.0, M10 x 1.0 and M12 x 1.75, with quick couplers for fast swaps between ports. Everything stores in a fitted carrying case.
| Brand | BILITOOLS |
| High-range gauge | 0-400 PSI / 0-2800 kPa, 3.5 in dial |
| Low-range gauge | 0-100 PSI / 0-700 kPa, 3.5 in dial |
| Test hose | 72 in with quick couplers |
| Adapters | 13 NPT, BSPT and metric (incl. M8x1.0, M10x1.0, M12x1.75) |
| Use | Automatic transmission line pressure and engine oil pressure |
| Storage | Carrying case |
