Universal Adjstable Fuel Pressure Regulator Black

The AEM Electronics Universal Adjustable Fuel Pressure Regulator Black (model 25-302BK) is a precision in-line fuel system component engineered for gasoline applications requiring accurate, tunable fuel delivery. This black anodized aluminum regulator features 6 AN female O-ring inlet and outlet connections with a dedicated 1/8 NPT gauge port, making it suitable for fuel systems in performance vehicles, engine swaps, and custom fuel injection builds where baseline fuel pressure specifications require adjustment beyond OEM settings.

The regulator's adjustable design allows users to dial in fuel pressure within the system's operating range, critical for optimizing fuel atomization and engine response across varying load conditions. The 6 AN O-ring fittings provide secure, repeatable connections without thread galling, while the 1/8 NPT port accommodates aftermarket fuel pressure gauges for real-time system monitoring. Aluminum construction with black anodized finish resists corrosion in engine bay environments and maintains consistent performance over extended use. Compact dimensions (4.35 x 3.35 x 4.7 inches) and lightweight packaging (0.71 lbs) simplify installation in space-constrained engine bays.

This regulator is ideal for builders, tuners, and enthusiasts working with carbureted-to-fuel-injection conversions, turbo/supercharged applications, or standalone ECU installations where OEM fuel pressure architecture is bypassed. Accurate fuel pressure control directly impacts fuel economy, cold-start behavior, and peak power delivery, making an adjustable regulator essential for systems deviating from stock specifications.

AEM Electronics has established market presence in fuel system management and EFI components for street and track applications. The 25-302BK is a foundational regulator component suited for both entry-level adjustable fuel systems and advanced multi-stage pressure management circuits.