AEM 30-2135-100 0-100 PSI Liquid-Filled Mechanical Fuel Pressure Gauge 1/8 NPT

Vehicle Fitment

• Universal - Compatible with any fuel rail, fuel pressure regulator, or fuel system component equipped with a 1/8" NPT port

Fitment Notes

• Designed to install directly onto AEM fuel rails (which include a 1/8" NPT port) or any compatible aftermarket fuel rail or regulator with a 1/8" NPT port
• This is a mechanical gauge - no wiring or power required; mounts directly to the fuel system
• Not intended for use with nitrous or other non-fuel pressure monitoring applications above 100 PSI

Features

• Liquid-filled gauge body dampens needle bounce from engine vibration for smooth, accurate readings
• Mechanical design requires no wiring, sensors, or external power - direct pressure monitoring
• 0-100 PSI measurement range covers all common EFI and carbureted fuel pressure applications
• 1/8" NPT male thread installs directly into AEM fuel rails, regulators, or any 1/8" NPT port
• Compact 1-1/2" dial face for easy placement in tight engine bay locations
• Ideal for fuel system setup, tuning, and troubleshooting without the need for electronics
• Compatible with gasoline, E85, methanol, and other common automotive fuel types
• Legal for use on emissions-controlled, non-emissions-controlled, and racing-only vehicles

Specifications

• Gauge Type: Mechanical, liquid-filled
• Pressure Range: 0-100 PSI
• Dial Face Diameter: 1-1/2 in (38 mm)
• Thread Connection: 1/8" NPT male (center back)
• Fill Fluid: Liquid-filled (dampens needle movement)
• Fitment Type: Universal

Included Components

• 1x AEM 30-2135-100 Liquid-Filled Mechanical Pressure Gauge (1/8" NPT)

Product Description

The AEM 30-2135-100 is a compact liquid-filled mechanical fuel pressure gauge designed to install directly onto AEM fuel rails or any fuel system component with a 1/8" NPT port. Its liquid-filled housing eliminates needle flutter caused by engine vibration, delivering stable, easy-to-read pressure values across a 0-100 PSI range - covering the full spectrum of EFI and carbureted fuel system pressures.

As a purely mechanical unit, it requires no wiring, sensors, or power source, making it an ideal tool for initial fuel system setup, ongoing monitoring, and diagnostic troubleshooting. The 1/8" NPT male thread connection threads directly into AEM's high-volume fuel rails or most aftermarket fuel pressure regulators, making integration simple and straightforward for any build.