Fuel Pressure Regulator YESHMA ZYQ-1005D Aluminum 3-70 PSI Gauge

Description

Product Overview

The YESHMA ZYQ-1005D fuel pressure regulator is engineered to provide precise, consistent fuel delivery across a broad range of modern internal combustion engines. Constructed from high‑grade aluminium, the regulator offers excellent corrosion resistance and lightweight durability, making it ideal for both daily drivers and performance‑oriented builds. The unit features a built‑in pressure gauge that displays real‑time PSI, allowing technicians and enthusiasts to monitor fuel pressure at a glance and make immediate adjustments without removing the component.

Three interchangeable springs are supplied with the regulator: a low‑range spring (3‑20 psi), a pre‑installed mid‑range spring (20‑45 psi), and a high‑range spring (45‑70 psi). This modular spring system enables users to fine‑tune the regulator for a variety of applications, from low‑output street engines to high‑performance race machines. The regulator’s 8AN inlet and outlet ports are non‑directional, simplifying installation on any side of the fuel rail, while a dedicated 6AN return port at the bottom ensures efficient fuel recirculation.

Designed for compatibility with most electronic fuel injection (EFI) systems, the regulator accepts gasoline, ethanol blends up to E85, and alcohol‑based fuels. It is not recommended for diesel applications due to the high‑pressure environment that could compromise the aluminium housing. The package includes a full set of adapters—two 8AN straight adapters, one 8AN port plug, and a 6AN straight adapter—providing flexibility for diverse fuel line configurations. A sturdy mounting bracket is also supplied, allowing secure attachment to the engine bay or chassis without the need for custom fabrication.

Usage

This regulator is suited for a wide spectrum of automotive scenarios. Street‑legal passenger cars benefit from the regulator’s ability to maintain optimal fuel pressure during varying driving conditions, such as stop‑and‑go traffic, highway cruising, and rapid acceleration. Performance enthusiasts who run high‑flow fuel pumps and upgraded injectors will appreciate the regulator’s adjustable spring options, which can be matched to the increased fuel demand of turbocharged or supercharged engines.

In off‑road and rally environments, the regulator’s robust aluminium construction resists vibration and shock, ensuring reliable operation even on rough terrain. It also serves well in custom builds where fuel type may vary; for example, a vehicle converted to run on E85 will experience stable pressure thanks to the regulator’s multi‑fuel compatibility. Installation is straightforward: connect the 8AN inlet to the fuel pump, attach the 8AN outlet to the rail, and route the 6AN return to the fuel tank. The integrated gauge provides immediate feedback, allowing the installer to verify that the target pressure range is achieved before the engine is started.

Because the regulator is designed for EFI systems, it integrates seamlessly with engine control units (ECUs) that monitor fuel pressure as part of their closed‑loop control strategy. This ensures that the engine receives the exact amount of fuel required for efficient combustion, reducing emissions and improving fuel economy. Whether the vehicle is a compact commuter, a midsize sedan, or a high‑performance sports car, the YESHMA regulator delivers consistent performance across the board.

Why Choose Us

YESHMA has a reputation for delivering high‑quality automotive components that combine engineering precision with practical design. Each fuel pressure regulator undergoes rigorous testing, including pressure cycling, temperature extremes, and vibration analysis, to guarantee reliability under real‑world conditions. The aluminium alloy used in the regulator is sourced from certified suppliers, ensuring uniform thickness and structural integrity that exceeds industry standards.

Our commitment to customer satisfaction extends beyond the product itself. Every regulator ships with a comprehensive installation guide, detailed wiring diagrams, and a set of replaceable springs so that users can adapt the unit to evolving performance needs without purchasing a new regulator. In addition, YESHMA offers a 12‑month limited warranty covering defects in material or workmanship, and a dedicated technical support team is available to assist with installation questions, troubleshooting, and part selection.

Environmental responsibility is also a core value. The aluminium construction is fully recyclable, and the manufacturing process adheres to ISO 14001 environmental management standards. By choosing YESHMA, customers not only receive a high‑performance component but also support sustainable production practices.

Finally, the regulator’s design emphasizes ease of service. The gauge is mounted on the top of the housing, allowing quick visual checks without disassembly. The interchangeable springs can be swapped in minutes using standard tools, and the included adapters eliminate the need for custom machining. This user‑centric approach reduces downtime and maintenance costs, making the regulator an economical choice for both professional shops and DIY enthusiasts.

Key Features

• Integrated pressure gauge provides instant PSI readout for precise tuning.
• Three interchangeable springs let you customize pressure range for any engine setup.
• Aluminium housing offers lightweight durability and excellent corrosion resistance.
• Compatible with gasoline, ethanol blends up to E85, and alcohol fuels for versatile use.
• Comprehensive after‑sales support includes a 12‑month warranty and dedicated technical assistance.

FAQ

Can this regulator be used with diesel engines?

No. The regulator is designed for gasoline‑based and ethanol‑based fuels. Diesel fuel operates at much higher pressures, which could damage the aluminium housing and compromise safety.

How do I select the correct spring for my application?

The low‑range spring (3‑20 psi) is ideal for low‑output engines or when running a fuel‑efficient tune. The mid‑range spring (20‑45 psi) works for most stock EFI setups. The high‑range spring (45‑70 psi) is recommended for high‑performance builds with larger injectors and higher fuel flow requirements.

Is the gauge calibrated in metric units?

The gauge is calibrated in PSI, which is the standard unit for fuel pressure in most automotive applications. If metric units are required, a conversion chart is included in the installation manual.

What adapters are included, and are additional adapters needed?

The package contains two 8AN straight adapters, one 8AN port plug, and one 6AN straight adapter. These cover the majority of common fuel line configurations. If your vehicle uses a different thread size, additional adapters can be purchased separately.

How long does installation typically take?

For a standard EFI system, installation usually takes 30‑45 minutes. The process involves mounting the regulator, connecting the 8AN inlet and outlet, attaching the 6AN return line, and verifying pressure with the built‑in gauge.