Aeromotive 15633 Liquid-Filled Fuel Pressure Gauge 0-100 PSI 1.5 in EFI

Vehicle Fitment

• Universal - compatible with any EFI fuel system equipped with a 1/8-inch NPT gauge port in the fuel pressure regulator, fuel rail, or fuel line
• Designed for EFI fuel pressure monitoring in the 0-100 PSI range - typical EFI operating pressures range from 40 to 75 PSI depending on regulator setting and boost reference
• Suitable for street performance, road racing, drag racing, and turbocharged/supercharged EFI applications

Fitment Notes

• Installs in any 1/8-inch NPT port - including Aeromotive regulator gauge ports (PN 13129, 13109, 13113, and others), fuel rail gauge ports, tee fittings, and inline gauge adapters. The 15633's 1/8-inch NPT male fitting threads directly into the standard gauge ports on most Aeromotive EFI regulators without adapters.
• 0-100 PSI range - EFI applications. The 15633 is calibrated for EFI fuel pressure ranges of 40-75 PSI and beyond. For carbureted applications operating at 3-15 PSI, use Aeromotive PN 15632 (0-15 PSI).
• The 15633 is included as the gauge in Aeromotive's PN 13130 Compact EFI Regulator Kit (with PN 13129 regulator and three PN 15606 fittings) - confirming it as Aeromotive's standard EFI gauge recommendation for the 13129 compact regulator.
• The 1/8-inch NPT connection exits from the back of the gauge - thread directly into a port and position the face for viewing. Not backlit.
• Mounting hardware is not included.
• This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.
• Sold individually - one gauge per package.

Features

• Integral Equalizer Valve - Temperature-Compensated Accuracy: Aeromotive's proprietary equalizer valve allows the liquid-filled gauge case to be instantly equalized to atmospheric pressure - correcting temperature-induced pressure reading errors on demand. As under-hood temperatures rise and fall, the glycerin fill in a standard liquid-filled gauge expands and contracts, causing false pressure readings unrelated to actual fuel pressure. The equalizer valve eliminates this temperature sensitivity, providing reliable, accurate readings across the full engine operating temperature range.
• Liquid-Filled for Durability and Smooth Needle Movement: The glycerin-filled case dampens needle oscillation from engine vibration and high-pressure EFI pump pulsations - providing a steady, readable needle position during operation rather than the erratic needle flutter seen in dry-fill gauges on high-output EFI systems. Liquid filling also lubricates the internal Bourdon tube mechanism and protects it from fatigue under continuous EFI pressure cycling.
• 0-100 PSI Full-Sweep Analog Display - White Face, Red Needle: The full-sweep analog display with white face and distinctive red needle provides clear, high-contrast fuel pressure readings across the 0-100 PSI range. The red needle offers immediate visual contrast against the white face for at-a-glance pressure confirmation, particularly useful during dyno tuning and track use when quick pressure checks are critical.
• 1-1/2-Inch Diameter - Compact Direct-Port Installation: The 1.5-inch (38.1mm) gauge diameter installs directly on Aeromotive EFI regulators, fuel rails, and fuel logs in the standard 1/8-inch NPT gauge port - no separate mounting bracket or gauge pod required in most installations, keeping the fuel pressure gauge visible and accessible directly at the regulator.
• Chrome Bezel - Stainless Steel Case - Shatterproof Lens: The chrome bezel and stainless steel case provide corrosion resistance and structural durability in high-heat, high-vibration EFI engine bay environments. The shatterproof plastic lens protects the gauge face without the fragmentation risk of glass lenses.
• 1/8-Inch NPT Back Connection: The rear-exit 1/8-inch NPT male connection mates directly with standard gauge ports on Aeromotive and most aftermarket EFI regulators - no adapter fittings required on most Aeromotive applications.

Specifications

• Part Number: 15633
• Brand: Aeromotive
• Product Type: Liquid-Filled Fuel Pressure Gauge
• Pressure Range: 0-100 PSI
• Application: EFI fuel systems
• Gauge Diameter: 1.5 in (38.1mm / 1-1/2 in)
• Face Color: White
• Needle Color: Red
• Numeral Color: Black
• Sweep: Full sweep analog
• Gauge Style: Analog (mechanical)
• Fill: Liquid-filled (glycerin)
• Special Feature: Integral equalizer valve (temperature compensation)
• Bezel Finish: Chrome
• Connection: 1/8-inch NPT male (back-side exit)
• Backlit: No
• Mounting Hardware: Not included
• UPC: 684980002560
• Fitment: Universal
• Emissions: Not legal for use on emission-controlled vehicles except as direct OEM replacement
• Warranty: 1 Year
• Quantity: 1 (sold individually)

Included Components

• 1x Aeromotive Liquid-Filled Fuel Pressure Gauge, 0-100 PSI (15633)

Product Description

The Aeromotive 15633 is a 0-100 PSI liquid-filled analog fuel pressure gauge designed for EFI fuel system monitoring - the companion gauge to the 15632 (0-15 PSI carbureted gauge) and Aeromotive's standard recommended gauge for EFI regulator applications including the 13129 compact EFI bypass regulator. It is included in Aeromotive's PN 13130 EFI regulator kit as the ready-to-install gauge solution for -6 AN EFI fuel systems.

The integral equalizer valve corrects temperature-induced pressure reading errors on demand - eliminating the needle drift that affects standard liquid-filled gauges as engine bay temperatures change during warmup, operation, and cool-down. The red needle on the white 1.5-inch face provides high-contrast EFI fuel pressure readings at a glance. The 1/8-inch NPT back connection installs directly in the standard gauge ports on Aeromotive EFI regulators and most aftermarket fuel system components without adapters. Chrome bezel, stainless steel case, shatterproof plastic lens. Universal fitment. 1-year warranty.