5 - 12 PSI Aluminum Fuel Pressure Regulator - Black

• Adjustable 5–12 PSI regulator holds stable pressure for high-demand carbureted systems

• Non-return, inline design installs directly in your fuel supply line

• Mounting bracket included; fittings, gauge, and gauge port not included

• 3/8" NPT threaded inlet/outlet, clear anodized aluminum body, not rebuildable

This adjustable fuel pressure regulator is built for carbureted fuel systems, with a 5–12 PSI range for higher-demand carburetor applications that need more pressure than TSP's 1–4 or 4.5–9 PSI regulators provide. It uses a non-return design and mounts inline in your fuel supply line, with a mounting bracket included for straightforward installation.

The regulator body is CNC-machined billet aluminum with a clear anodized finish, using 3/8" NPT threaded inlet and outlet ports. Fittings, a fuel pressure gauge, and a gauge port are not included and must be sourced separately if needed. This unit is not rebuildable — confirm your fuel delivery type, pump capacity, and pressure requirements before final installation.

Applications
Fits any gasoline, carbureted fuel system requiring 5–12 PSI regulation — the highest range in TSP's non-return regulator lineup (1–4, 4.5–9, and 5–12 PSI). Commonly used in high-demand street performance and custom fuel-system builds. This is a carbureted-specific regulator; it is not designed for EFI/fuel injection systems.

Installation
Mounts inline using the included bracket. Confirm port sizing (3/8" NPT), hose routing, and return-line requirements before installation, since fittings are not included. Full installation instructions are available as a downloadable PDF, shared across TSP's 1–4, 4.5–9, and 5–12 PSI regulator family.

What pressure range does this regulator support?
This fuel pressure regulator is adjustable from 5 to 12 PSI, making it the highest-pressure model in TSP's non-return regulator lineup. It is designed for carbureted fuel systems that require higher fuel pressure.

Is this compatible with EFI/fuel injection systems?
No. This regulator is designed exclusively for carbureted fuel systems. Electronic fuel injection (EFI) systems require significantly higher fuel pressure and a different style of regulator.

How is this different from TSP's 1–4 PSI and 4.5–9 PSI regulators?
This regulator provides the highest adjustable pressure range in the TSP non-return regulator lineup at 5 to 12 PSI. It is intended for carburetors that require more fuel pressure than can be supplied by the 1–4 PSI or 4.5–9 PSI models.

Does this include a fuel pressure gauge or gauge port?
No. This regulator does not include a fuel pressure gauge or a dedicated gauge port.

Does this include fittings?
No. Fuel line fittings are not included and must be selected separately based on your fuel line size and installation requirements.

Is this regulator rebuildable?
No. This fuel pressure regulator is not designed to be rebuilt.

What port size does this regulator use?
The regulator features 3/8-inch NPT threaded inlet and outlet ports.

Does this include installation instructions?
Yes. A downloadable installation instruction sheet is available for this regulator and is shared across TSP's 1–4 PSI, 4.5–9 PSI, and 5–12 PSI non-return fuel pressure regulator family.