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Autool  |  SKU: PT650

Autool PT650 | Transmission Oil Pressure Tester

Regular price
€119,95 incl.
€99,13 excl.

Warranty directly via AsTools

We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.

2 years warranty on all products

All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.

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The Autool PT650 is a digital transmission-oil-pressure-tester, designed for diagnosing transmission fluid pressure in automatic transmission systems. The gauge offers a measurement range of 0–29.4 bar(0–426.6 psi / 0–30 kg/cm²). With a comprehensive set of 10 adapters included, this gauge works with a wide variety of vehicles.

The device is equipped with a 2.8-inch HD LCD display with backlit display for clear readability. The PT650 stores measurement data up to a maximum of 6 test cycleson and displays the current, maximum and minimum pressure in real-time, as well as the pressure differential (ΔP). The kit includes a reinforced rubber hose and corrosion-resistant brass fittings.

KEY FEATURES

Specifically designed for automatic transmissions — diagnose slipping, harsh shifting, and overheating issues.
10 adapters — 1/8", 1/4", NPT, M8 and M10 for broad compatibility.
Data storage 6 sets — compare pressure readings by gear position (P/N/D/R) or engine speed.

IMPORTANT NOTES

For automatic transmissions — for engine oil pressure, choose the PT620.
Transmission at Operating Temperature — warm up for reliable readings.
Manufacturer-specific pressure ports — check which adapter/opening fits your transmission.

Application and Functionality

This instrument is used for measuring and analyzing oil pressure in automatic transmissions, helping you identify potential issues.

  • Digital pressure gauge:Displays current, maximum and minimum pressure with 0.01 resolution.
  • Data Storage:Ability to save results from up to 6 test cycles for later analysis and comparison.
  • Adjustable units: Switch between psi, bar, and kg/cm² using the control buttons.
  • Clear display: 2.8-inch LCD screen with backlight for crisp readability in all lighting conditions.

Common transmission issues diagnosed

  • Transmission slipping under load
  • Hard or delayed shifting
  • ATF fluid overheating
  • Torque converter / lock-up clutch diagnosis
  • Main line pressure (system pressure) check
💡
Tip: Always measure in each gear position (P, R, N, D) with the engine idling and at operating temperature. Large pressure differences between positions may indicate internal leakage.

What's included

  • 1x Autool PT650 digital pressure gauge
  • 1x Pressure sensor with hose
  • 1x Adapter 1/8"-28 OD
  • 1x Adapter M8x1.0 OD & M10x1.0 ID
  • 1x Adapter 1/8"-28 OD & M10x1.0 ID
  • 1x Adapter M10x1.0 OD & M10x1.0 ID
  • 1x Adapter NPT 3/8" OD & M10x1.0 ID
  • 1x Adapter NPT 1/4" OD & M10x1.0 ID
  • 1x Adapter 1/8"-28 ID
  • 1x Adapter 1/8"-28 OD & 1/4"-19 OD
  • 2x Adapter 1/8"-28 ID & OD

Technical specifications

Specification Description
Brand Autool
Model PT650
Measurement Range 0–426.6 psi / 0–30 kg/cm² / 0–29.4 bar
Resolution 0.01
Display 2.8-inch HD LCD with backlight
Connections Set of 10 adapters (1/8", 1/4", NPT, M8, M10)
Material Reinforced rubber hose, brass fittings
Application Automatic transmission fluid (ATF)