Painless Fuel Pump Relay Kit 50102 — 30A Heavy‑Duty Relay with Resettable Breaker & 6' Harness

The Painless Performance 50102 Fuel Pump Relay Kit is a complete, heavy‑duty relay package that prevents voltage drops and protects your vehicle’s electrical system while keeping fuel pump pressure consistent.

This relay kit was engineered to safeguard the fuel delivery circuit on street cars and race vehicles alike by relocating high current away from factory wiring and ensuring steady voltage reaches the pump. It reduces the chance of under‑voltage at the pump, minimizes wiring heat and voltage loss, and includes a circuit breaker and hardware for a secure installation. All components are produced in the United States and sized for common performance fuel pumps and upgrades.

How does this relay kit stop voltage drop at the fuel pump?

The kit provides a short, dedicated heavy‑gauge feed controlled by a 30‑amp relay so the high current doesn’t travel through smaller, stock circuits. That direct path means less resistance, lower voltage loss at the pump, and more consistent pump output under load.

• 30‑amp heavy‑duty relay delivers stable current to the pump
• Integrated relay base with 6' input and 6' output harness reduces wiring length
• Crimp terminals and mounting hardware ensure tight electrical connections

Will this protect my vehicle from fuel pump amperage overloads?

Yes — the included 30‑amp circuit breaker interrupts excessive current before it can overheat wiring or damage components. The breaker provides resettable protection so you can clear a transient fault without replacing fuses.

• 30‑amp circuit breaker trips on overcurrent to prevent wiring damage
• Resettable design avoids single‑use fuse replacements
• Relay isolates the pump circuit from factory harnesses to reduce stress on OEM wiring

What exactly comes in the Painless 50102 kit and how easy is it to install?

The kit includes everything needed to install a proper relay feed: a 30‑amp relay, a relay base with an attached wire harness (6' input and 6' output), a 30‑amp circuit breaker, crimp‑on terminals and mounting hardware. Basic wiring tools and intermediate electrical knowledge are sufficient for a tidy, reliable install in most vehicles.

• 30‑amp heavy‑duty relay and relay base with wiring harness
• 30‑amp resettable circuit breaker for overcurrent protection
• Crimp terminals and mounting hardware included for secure connections

Will this kit work with upgraded fuel pumps and aftermarket systems?

This relay kit supports many performance pumps that draw up to the relay and breaker rating; for very high‑flow pumps that exceed 30 amps, a higher‑rated relay and breaker are recommended. Use this kit as a straightforward upgrade for most street and moderate performance setups to ensure stable pump voltage.

• Suitable for standard and many performance pumps within 30A limits
• For pumps drawing over 30A, choose a higher‑capacity relay/breaker
• Works well as a relayed feed when upgrading stock fuel systems

Who this is for: The Painless Performance 50102 Fuel Pump Relay Kit is ideal for DIY enthusiasts, street‑performance builders, and racers who want to eliminate fuel pump voltage drop and add resettable overcurrent protection without fabricating complex wiring harnesses. It’s a practical upgrade for anyone replacing a fuel pump, adding power, or preparing a vehicle for track use and who wants a reliable, made‑in‑USA relay solution.