Six precision-fitted bypass switches replace the most common automotive relay footprints on the market — Small/Medium/Large Spade plus Small/Square/Large Rectangular. Rated for 10–20 Amp loads, durable thermoplastic housing, and corrosion-resistant terminals. Comes ready to drop into virtually any relay socket without modification, adapters, or special tools.
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QuickMech™ 6-Pack Relay Bypass Switch Kit — Automotive Diagnostic Tester for Fuel Pumps, Window Motors, Headlights & More (Replaces 9036, 9037, 9038)
QuickMech™ 6-Pack Relay Bypass Switch Kit — Automotive Diagnostic Tester for Fuel Pumps, Window Motors, Headlights & More (Replaces 9036, 9037, 9038)
Skip the Guesswork. Flip the Switch. Find the Fault in 30 Seconds. ⚡ The Diagnostic Hack Pro Techs Use Before Replacing a Single Part.
Regular price
$84.00
Sale price
$84.00
Regular price
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⚡ INSTANT RELAY DIAGNOSIS
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🔌 6 FORM FACTORS COVERED
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🚗 WORKS ON DOMESTIC, EURO & ASIAN
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🔥 10A & 20A RATED
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💰 SAVES $$$ ON GUESSWORK PARTS
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⚡ QUICKMECH™ 6-PACK RELAY BYPASS SWITCH KIT — STOP GUESSING. START DIAGNOSING.
Every mechanic knows this scenario. Customer rolls in: "My fuel pump isn't priming." You pop the underhood fuse box, stare at six identical black relays, and now what? Swap one from the wiper circuit and hope? Order a new $40 OEM relay and pray it fixes it? Or actually find the problem in 30 seconds with the right tool.
The QuickMech™ Relay Bypass Switch Kit ends the guessing game.
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⚡ HOW IT WORKS
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Pull the suspect relay. Drop in the matching QuickMech™ bypass switch (six sizes included — one will fit). Turn the ignition to RUN. Flip the switch to ON. If the circuit works — the relay was bad. If it still doesn't — your relay is fine, and the fault is elsewhere (wiring, ground, fuse, sensor, or the component itself). Total diagnostic time: under one minute. Total parts wasted: zero.
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🔌 WHAT'S IN THE KIT (6 BYPASS SWITCHES)
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✅ #36-SML / 10A Small Rectangular — GM, Chrysler, Japanese 1985–2008
✅ #36-MED / 20A Square — BMW 1995–2006
✅ #36-LRG / 20A Large Rectangular — GM, Chrysler, Japanese 1995–2007
✅ #37-SML / 10A Small Spade — 2000+ Domestic, Korean, Japanese
✅ #37-MED / 20A Medium Spade — Domestic & Japanese 1970–2009
✅ #37-LRG / 20A Large Spade — Volkswagen 1999–2005, Audi 2004–2006
Replaces OE# 9036, 9037, 9038 master sets.
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🎯 COMMON USE CASES
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- Diagnose no-start (fuel pump relay)
- Test cooling fan / radiator fan relays
- Confirm headlight, fog light & DRL relays
- Troubleshoot power window & door lock motors
- Verify horn, wiper & blower motor circuits
- Quick-test starter & ignition relays before parts swap
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🛡️ BUILT TO LIVE IN YOUR DIAGNOSTIC BAG
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✅ Heat-resistant thermoplastic housing
✅ Solid brass terminals — corrosion resistant, full conductivity
✅ Tactile ON/OFF rocker — no ambiguous middle positions
✅ Color-coded ratings (10A vs 20A) printed on every switch
✅ Compact enough to live in a tech apron pocket
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🎯 WHO IT'S MADE FOR
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- ASE-certified diagnostic technicians
- Independent shop owners & mobile mechanics
- Auto electrical specialists
- Fleet maintenance crews
- Serious DIYers tired of throwing parts at problems
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🛡️ THE QUICKMECHTOOLS PROMISE
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If this kit doesn't earn its spot in your diagnostic bag on the very first job, return it within 30 days for a full refund. We back every kit with a 12-month warranty against defects.
🚚 Fast US shipping — most orders arrive in 3–5 business days.
⏰ Heads up: this kit moves fast every week — especially among mobile mechanics. Lock yours in while we have stock.
Estimated Arrival Time: 7-15 business days.
Super easy to use and saves so much time!
James M...
★★★★★
Los Angeles
No more searching for the right socket — pure bliss!
Liam An...
★★★★★
Los Angeles
Versatile and durable, my new favorite tool for projects!
Carlos ...
★★★★★
Los Angeles
QuickMech™ 6-Pack Relay...
Regular price
$84.00
Sale price
$84.00
Regular price
Unit price
/
per




