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Speco

1-1/2" Mechanical Fuel Pressure Gauge (0-100psi) - 512-20

1-1/2" Mechanical Fuel Pressure Gauge (0-100psi) - 512-20

$32.95 AUD
$32.95 AUD
Sale Sold out
Tax included.
When you’re chasing reliable performance from an EFI-equipped vehicle, knowing exactly what your fuel system is doing makes all the difference. The Speco Fuel Pressure Gauge is designed for use on petrol vehicles running High-Pressure Electronic Fuel Injection systems, making it ideal for performance builds, workshop diagnostics and regulator tuning applications. Built as a mechanical fuel pressure gauge, it delivers direct, accurate readings without relying on electrical signals — giving you immediate feedback on fuel system performance.

  • Electric Fuel Pump Verification: Essential for confirming that high-pressure electric fuel pumps are achieving their targeted base pressure.

  • Fuel Regulator Setup: Commonly mounted directly to adjustable aftermarket fuel pressure regulators for precise tuning and adjustment.

  • High-Load Diagnostics: Helps identify pressure drops under acceleration or heavy load conditions.

  • Engine Bay Monitoring: Can be permanently plumbed under the bonnet to provide ongoing fuel system visibility.

  • Early Problem Detection: Assists in diagnosing clogged filters, weak or failing pumps, and fuel delivery issues before they result in lean engine damage.

  • Specifications:
Diameter - 1-1/2" inches (38.1 mm)
Pressure Range - 0 to 100 psi (Pounds per Square Inch)
Measurement Type - Mechanical (Direct fluid/pressure expansion via capillary line)
Internal Fill - Dry Dial (Air-core interior)
Internal Finish - White face, Black markings, Black needle.
External Finish - Black housing
Thread Port - 1/8" NPT 
Fittings Included - None

Whether you’re fine-tuning a performance setup or safeguarding a daily driver, the Speco Fuel Pressure Gauge provides clear, accurate insight into your fuel system — helping ensure consistent delivery and long-term engine reliability.
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