Automotive Engine Compression & Vacuum Pressure Gauge Kit

$127.23 $158.81

Automotive Engine Compression & Vacuum Pressure Gauge Kit

Keep your vehicle running at peak efficiency with this professional-grade Automotive Cylinder Compression & Vacuum Pressure Gauge Kit. Designed for mechanics and serious DIY enthusiasts, this 9-piece kit lets you accurately measure engine cylinder compression and exhaust back pressure — helping you diagnose issues with mufflers, catalytic converters, and gasoline engine performance before they become costly problems.

Key Features

Exhaust Back Pressure Testing: Adaptor fits directly into the oxygen sensor port, allowing you to measure back pressure in mufflers and catalytic converters with ease.
Dual-Scale Gauge: Large 3.5-inch diameter dial with dual scales — 0–300 PSI and 0–20 Bar — for quick and accurate readings.
Universal Adapter Compatibility: Gauge adapter threads into oxygen sensor ports in both 12mm and 18mm sizes, plus a manifold adapter for 14mm / 18mm ports.
Quick-Coupling Air Gauge: Features a built-in pressure release button for safe, convenient operation.
Heavy-Duty Construction: Instrument is protected by a durable rubber sleeve; 50 cm flexible rubber hose included for flexible positioning during testing.
Complete 9-Piece Kit: Everything you need comes packed in a blow-molded briefcase for organized, easy transportation and storage.
CE Certified: Meets quality and safety standards for professional and home garage use.

How to Use

Test at idle and at 2,500 RPM. Readings should be below 1.25 PSI at idle and below 3 PSI at 2,500 RPM. Higher readings point to a restriction in the exhaust system that warrants further inspection.

Specifications

Gauge Diameter: 3.5 inches (double scale)
Pressure Range: 0–300 PSI / 0–20 Bar
Hose Length: 50 cm
Adapter Thread Sizes: 12mm, 18mm (O2 sensor ports); 14mm / 18mm (manifold)
Kit Size: 31 × 21 × 6 cm
Net Weight: 0.8 kg
Number of Pieces: 9
Packaging: Blow-molded plastic carry case
Certification: CE
Made in China

Package Contents

1 × Vacuum / Compression Pressure Gauge
Adapter set (multiple sizes included)
Blow-molded plastic carry case

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Frequently Asked Questions

Q: What vehicles is this automotive compression and vacuum pressure gauge kit compatible with?

A: This kit is designed for use with most gasoline-powered cars and light trucks. The adapter fits standard oxygen sensor ports in both 12mm and 18mm sizes, making it compatible with the vast majority of modern and older vehicles. Always verify your vehicle's oxygen sensor thread size before use.

Q: What does a high back pressure reading indicate when using this exhaust tester?

A: Higher-than-normal readings typically indicate a restriction within the exhaust system — such as a clogged catalytic converter or a collapsed muffler. For reference, pressure should remain below 1.25 PSI at idle and below 3 PSI at 2,500 RPM. Readings above these thresholds suggest the exhaust system should be inspected and serviced.

Q: Is this pressure gauge kit suitable for DIY home mechanics?

A: Absolutely. The kit is designed for both professional mechanics and home garage enthusiasts. It comes in a convenient blow-molded carry case with all adapters included, and the large dual-scale dial (0–300 PSI / 0–20 Bar) makes readings easy to interpret without specialized training.

Q: Can this gauge measure both compression and vacuum pressure?

A: Yes. This versatile gauge kit is built to handle both compression testing of gasoline engine cylinders and exhaust back pressure measurement, covering a wide range of diagnostic needs in one compact kit.