Fuel Pump Relay JY PERFORMANCE DAC628 12V 40A Automatic Screw Mount

Description

Product Overview

The JY PERFORMANCE DAC628 fuel pump relay is a purpose‑built component for modern 12‑volt automotive electrical systems. Constructed with a solid copper contact core, the relay offers a low‑resistance path for up to 40 amps of continuous current, guaranteeing dependable power to the fuel pump under all driving conditions. The relay features a screw‑mount connector type, allowing a secure mechanical attachment to the vehicle chassis or a dedicated relay socket. Its coil is rated at 12 volts, providing an automatic operation mode that engages the normally open contacts when the control signal is present, and safely disengages when the signal drops, protecting the pump from voltage spikes.

Dimensions of 5.79 x 5.28 x 2.17 inches and a lightweight 13.9‑ounce package make the DAC628 easy to handle during installation. The housing is engineered to be waterproof, meeting the demands of engine bays that experience moisture, road salt, and temperature extremes. The relay also includes an inline waterproof fuse box, adding an extra layer of protection against over‑current events. All components are sourced from reputable manufacturers, and the product carries the JY PERFORMANCE brand reputation for quality and durability.

Usage

This relay is ideal for a wide range of vehicles, from passenger cars and light trucks to off‑road SUVs and performance builds. It integrates seamlessly into any 12‑volt fuel system, whether the original equipment manufacturer (OEM) specification calls for a standard relay or an upgraded heavy‑duty unit. The heavy‑duty wiring kit included in the package features color‑coded, high‑temperature insulated wires that simplify the connection process and reduce the risk of mis‑wiring. The kit is also compatible with aftermarket fuel pump upgrades, making it a perfect choice for enthusiasts seeking to increase fuel flow for higher horsepower applications.

Installation is straightforward: the screw‑mount terminals accept standard automotive wire gauges, and the labeled wires guide the installer through the correct polarity and routing. The relay can be mounted in the engine compartment, near the fuel pump, or in a protected relay box, depending on the vehicle layout. Its waterproof construction ensures reliable operation even in rainy climates, dusty off‑road conditions, or when the vehicle is exposed to salt‑laden winter roads.

Why Choose Us

Choosing the JY PERFORMANCE DAC628 means selecting a component that combines engineering precision with practical durability. Each relay undergoes rigorous testing for contact resistance, switching speed, and thermal performance, ensuring it meets or exceeds industry standards. The copper contacts are plated to resist corrosion, extending the service life far beyond typical OEM relays. Our waterproof housing and integrated fuse box protect the relay from environmental hazards, reducing the likelihood of premature failure.

Beyond the hardware, JY PERFORMANCE offers comprehensive after‑sales support. Our technical team is available to assist with installation questions, wiring diagrams, and troubleshooting. We provide a warranty that covers manufacturing defects, giving customers confidence in the long‑term reliability of their purchase. The combination of high‑quality materials, thoughtful design, and responsive customer service makes the DAC628 a superior choice for both professional mechanics and DIY enthusiasts.

Key Features

• Robust copper contacts deliver low resistance and high current capacity for reliable fuel pump operation.
• Waterproof housing and integrated fuse box protect against moisture, dust, and over‑current events.
• Screw‑mount design simplifies installation and ensures a secure mechanical connection.
• Heavy‑duty, color‑coded wiring kit provides clear polarity identification and long‑lasting durability.
• JY PERFORMANCE customer support and warranty give peace of mind and expert assistance when needed.

FAQ

What vehicles are compatible with the DAC628 relay?

The DAC628 is designed for any 12‑volt automotive system that requires a 40‑amp relay. It fits most passenger cars, trucks, SUVs, and performance vehicles that use a standard screw‑mount relay form factor.

Can this relay be used with aftermarket fuel pumps?

Yes. The relay’s high current rating and heavy‑duty wiring make it an excellent match for aftermarket fuel pumps that demand more power than stock pumps.

Is the relay waterproof enough for off‑road use?

The relay housing is sealed to protect against water ingress, dust, and road salt. It is rated for typical off‑road conditions and will continue to operate reliably in wet or muddy environments.

How do I install the relay correctly?

Connect the labeled wires to the appropriate terminals, secure the relay with the screw‑mount brackets, and ensure the coil voltage is 12 V. Follow the included wiring diagram for exact pin assignments.

What warranty does JY PERFORMANCE provide?

JY PERFORMANCE offers a one‑year limited warranty covering manufacturing defects, along with access to technical support for installation and troubleshooting.