🔥Last Day 50% OFF - Automotive Relay Tester and Bypass Jumper Set🛠️

🔥Last Day 50% OFF - Automotive Relay Tester and Bypass Jumper Set🛠️

🔌 Instant Plug-and-Play Setup ▼
Pop out your faulty relay and plug this right in. Skip the messy jumper wires and safely control the circuit with a crisp, heavy-duty toggle switch.
🔄 Integrated Amp Loop Testing ▼
Features a built-in loop perfectly sized for clamp-on ammeters. Test live current draw instantly without slicing open factory wires or stripping insulation.
🛡️ Total Independent Circuit Control ▼
Bypass the ignition switch entirely to power components directly. Safely troubleshoot fuel pumps, horns, and cooling fans right from under the hood.
💥 Robust 30A Surge Protection ▼
Engineered to handle 20A continuous and up to 30A power surges at 12V. Rest easy knowing your delicate vehicle computers and circuits are completely safe.
$33.99
$33.99 $68.99
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🔥Last Day 50% OFF - Automotive Relay Tester and Bypass Jumper Set🛠️

🔥Last Day 50% OFF - Automotive Relay Tester and Bypass Jumper Set🛠️

$33.99
$33.99 $68.99
SAVE 50% Sold out

FEATURES

Introduction: Built-in 100% Safe for ECU / Built-in 20A Fuse Protection

INDEPENDENT CIRCUIT CONTROL - Take charge of the fuel pump circuit, bypassing the vehicle's key-on system. This allows for precise and simplified fuel injection pressure testing without needing to turn the ignition.

INTEGRATED AMP LOOP - Features a convenient red wire loop designed for easy current monitoring. Simply attach a clamp-on ammeter or lab scope to accurately diagnose parasitic draws or excessive current consumption in the circuit.

PLUG-AND-PLAY OPERATION - Installation is effortless. Just remove the original relay and plug this bypass switch directly into the socket. You gain immediate manual control over the circuit with a simple flip of the switch.

ROBUST POWER HANDLING - Engineered to handle up to 20 amps of continuous current and a 30-amp surge at 12V. This makes it perfectly suitable for running various automotive DC motors and high-load components safely.

VERSATILE DIAGNOSTIC TOOL - This comprehensive kit is not just for fuel pumps. Use it to test and operate cooling fans, window motors, headlight switches, A/C compressors, and many other relay-controlled automotive systems.

SPEC

Color: Black

Size: 8.99 cm x 6.96 cm x 11.96 cm (3.54 in x 2.74 in x 4.71 in)

Weight: 132 g (4.66 oz)

Working Range: Up to 20A continuous, 30A surge (12V)

PACKAGE INCLUDES

6 x Relay Bypass Switches

NOTES

Please verify the relay type and size in your vehicle's fuse box before purchasing to ensure compatibility.

Do not leave the bypass switch installed permanently. It is intended for diagnostic and testing purposes only.

Ensure the vehicle's ignition is off before installing or removing the bypass switch to prevent electrical damage.

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Frequently Asked Questions

Q: Will this cheap plastic break or melt under a heavy load? ▼
A: Absolutely not. These tools are built with rugged, high-impact industrial casings and heavy-gauge copper wiring. They are fully rated to withstand 20A continuous shop work and 30A surges without breaking a sweat.
Q: Is it safe for my vehicle's expensive main computer (ECU)? ▼
A: Yes, 100%. By plugging directly into the isolated relay socket, you completely isolate the circuit component from the sensitive vehicle computers. It is significantly safer than probing randomly with wire pins or paperclips.
Q: How long does shipping take to get to my door? ▼
A: We ship directly from our domestic US warehouses via reliable carriers like USPS and FedEx. Your package will ship out within 24 hours, and standard delivery typically lands on your doorstep within 3-5 business days.
Q: Will these jumpers actually fit my specific American truck or car? ▼
A: Yes. This set is engineered to match standard 4-pin and 5-pin relay configurations found on 95% of domestic vehicles. It fits perfectly into standard relay boxes for Ford, Chevy, GMC, Dodge, and RAM trucks.

Testimonials

  • Works like a charm on my '08 Ford

    "Tired of cramming paperclips into the fuse box and praying I don't short out the ECM. Popped this right into my Ford's fuel pump relay slot, flipped the toggle, and heard the pump buzz instantly. No sparks, no headaches. Every guy with an older truck needs a set of these in his toolbox."

    Hank M

  • Heavy-duty little problem solvers

    "Was a bit skeptical about the build quality for this price, but these things are solid. The box comes with all the different pin sizes you'll actually run into. Wiring feels thick enough to handle real shop abuse. Kept them right under my truck seat."

    Gary T., Ohio

  • Saved me a $200 trip to the mechanic

    "Had an intermittent AC clutch issue on the old rig. Pulled the factory relay, plugged this adapter in, and was able to diagnose the circuit from under the hood by myself without running back and forth to turn the key. Simple tool, does exactly what it says."

    Bob J., Michigan

  • Complete kit, fits the Ecotec box perfectly

    "Bought the whole bundle to work on my boy's car and my Silverado. The fit is tight and secure in the relay housing, not loose like some cheap knock-offs. That little red wire loop is a lifesaver for hooking up my clamp meter to check the current draw. Worth every dime."

    Rick D., Pennsylvania

  • No more guessing games

    "If you've ever spent hours chasing a bad ground or a dead relay, just stop and get this. Plugs right into the tight spots in the fuse block. Allows you to isolate and power up the circuit independently. Makes electrical troubleshooting an absolute breeze."

    Dave K., Arizona

  • Professional grade for a DIY price

    "Using two of these at the same time to trace a stubborn wiring fault on a customer's vehicle. Much safer than using jumper wires that can slip and ruin the terminal pins. The inline toggle switches have a nice, crisp click to them. Highly recommend."

    Jim "Smitty" W., North Carolina