JEGS Performance Products 41008 Liquid-Filled Vacuum Gauge 30″-0″ Hg 1/8″ NPT

🧭 Measure Engine Vacuum Like a Pro — JEGS 41008 Delivers Accuracy and Durability

When you’re diagnosing engine performance or tuning for precision, accuracy matters. The JEGS Performance Products 41008 Liquid-Filled Vacuum Gauge gives you reliable, vibration-resistant readings from 30” to 0” Hg, making it the go-to tool for tuners, mechanics, and serious DIY enthusiasts.

Liquid-Filled Vacuum Gauge30″-0″ Hg1/8″ NPTBlack Liquid-filled, shockproof vacuum gauge to complement your vacuum reserve canister or any other vacuum source requirement 30″-0″ Hg for a direct reading.

Built with precision engineering and a liquid-filled design, this gauge ensures steady needle movement and protection from harsh engine bay vibrations — perfect for testing manifold vacuum, carburetor tuning, or checking for intake leaks.

30″-0″ Hg
1/8″ NPT
Black Liquid-filled, shockproof vacuum gauge to complement your vacuum reserve canister or any other vacuum source requirement 30″-0″ Hg for a direct reading.
BLACK STEEL CASE AND BEZEL for long life and great looks

⚙️ Compact, Precise, and Built to Last

The JEGS 41008 Vacuum Gauge offers professional-grade performance in a compact size. Its liquid-filled case absorbs vibration and pressure spikes, ensuring you get accurate readings every time. Whether you’re setting idle mixture screws or verifying vacuum-operated components, this gauge delivers consistent results under any condition.

Key Specifications:

• Measurement Range: 30” Hg (vacuum) to 0” Hg

• Connection Size: 1/8” NPT male fitting

• Design: Liquid-filled for smooth, stable readings

• Construction: Durable steel housing for longevity

• Lens: Clear front lens for easy readability

• Dial Face: Precision-marked scale for detailed measurement

• Applications: Ideal for carbureted engines, vacuum testing, and fuel tuning

1 1/2 “ DIAMETER BLACK FACE for compact viewing such as under the hood

🔧 Easy Installation, Universal Fit

Thanks to its standard 1/8” NPT fitting, installation is quick and compatible with most vacuum ports and test setups. Simply thread it into a vacuum source or connect via a test line, and you’ll have live vacuum data within seconds.

Installation Overview:

1. Identify a vacuum port or manifold test location.

2. Thread the gauge using the 1/8” NPT fitting (use thread sealant if necessary).

3. Start the engine and monitor readings immediately.

Compact enough for toolboxes yet tough enough for permanent setups — it’s a perfect fit for any garage.

🏁 Reliable Data, Professional Results

The JEGS Performance 41008 Liquid-Filled Vacuum Gauge is a dependable companion for diagnosing, tuning, and optimizing your engine. Whether you’re testing idle vacuum, tracking performance loss, or setting up a carburetor, JEGS delivers the durability and accuracy that professionals rely on.

Built for tuners, trusted by pros — that’s JEGS Performance.