GEARLAST Fuel Pressure Regulator for Carburetor — Adjustable 1-5 PSI Kit with Gauge

GEARLAST Fuel Pressure Regulator Carburetor Fuel Pump Kit gives you precise, adjustable fuel pressure control from 1 to 5 PSI for reliable carbureted engine performance.

This compact regulator kit is built to sit between your mechanical or electric fuel pump and the carburetor, letting you fine-tune fuel delivery with a chrome-plated dial and integrated gauge. Constructed from zinc alloy, the regulator accepts common 8mm and 10mm (5/16" and 3/8") fuel lines and comes with the fittings and hose needed for a straightforward installation. It’s designed as a universal solution for many carbureted engines, supporting up to 150 liters/hour flow while requiring that input pressure not exceed 7 PSI.

How does the GEARLAST regulator change carburetor performance?

By restricting and metering fuel flow, the regulator lowers incoming fuel pressure to the carburetor’s optimal range, preventing flooding and helping maintain consistent mixture. Turning the top dial adjusts the outlet pressure between 1 and 5 PSI to match your engine’s needs.

• Adjustable output: 1–5 PSI via chrome dial for precise tuning.
• Supports up to 150 L/h flow—suitable for single or dual carburetor setups.
• Prevents excessive fuel pressure when paired with compatible pumps.

What comes in the kit and how simple is installation?

The kit includes the zinc-alloy regulator with dial, a pressure gauge with adapter, rubber hose, steel clamp, and brass fittings for both 8mm and 10mm fuel lines. Installation is straightforward: mount the regulator between the pump and carburetor, attach the included fittings and clamp, then set the output pressure with the dial.

• Included parts: regulator, gauge, adapter, hose, clamp, 8mm & 10mm fittings.
• Mounting: inline installation between pump and carburetor; no specialty tools required.
• Compatibility: fits common 5/16" and 3/8" fuel lines for quick hookup.

What materials and specifications ensure durability and accuracy?

The regulator body is made from zinc alloy for corrosion resistance and clear readability of the gauge. The chrome-polished dial resists wear, and the mechanical design supports steady regulation as long as input pressure stays within recommended limits.

• Body: durable zinc alloy for long-term service life.
• Dial: chrome finish for easy visibility and smooth adjustment.
• Limits: maximum input pressure must not exceed 7 PSI; max flow 150 L/h.

How should I set and maintain fuel pressure with this regulator?

Start with the dial near the middle of the 1–5 PSI range and run the engine while watching the included gauge to reach your target pressure. Periodic checks and keeping the inlet pressure below 7 PSI will extend regulator life and keep fuel delivery consistent.

• Initial setup: adjust while engine idles and observe gauge readout.
• Maintenance: inspect hose and fittings for leaks and confirm inlet pressure limits.
• Support: GEARLAST provides one year of product support for buyers.

Who is this for? The GEARLAST Fuel Pressure Regulator Carburetor Fuel Pump Kit is aimed at classic car restorers, custom builders, and anyone running carbureted engines who needs dependable, adjustable fuel pressure. It fits owners who want a compact, universal regulator that installs quickly, offers clear pressure control, and works with standard 5/16" and 3/8" fuel lines—ideal for single or dual carb setups where consistent metering and protection from overpressure are priorities.