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WirthCo 20138 Top Post Battery Disconnect Switch

Manufacturer

WirthCo

<h3>About WirthCo Engineering</h3><p>With nearly four decades of experience in the automotive aftermarket industry, WirthCo Engineering has established itself as a trusted manufacturer of quality accessories and electrical components. Based in Minneapolis, Minnesota, this engineering-focused company has built its reputation on innovation, holding over 36 patents that reflect a commitment to solving real-world automotive challenges. WirthCo's product philosophy centers on making vehicle maintenance and electrical work easier and safer for professionals and DIY enthusiasts alike.</p><h3>Battery Doctor Brand Excellence</h3><p>WirthCo is perhaps best known for its Battery Doctor® brand, a comprehensive line of electrical accessories designed to help vehicle owners maintain, protect, and monitor their power systems. The Battery Doctor product family includes everything from <a href="/1894-wirthco-battery-disconnect-switches-200143">battery disconnect switches</a> that protect vehicles during storage to sophisticated monitoring systems that track battery health. These solutions are particularly valuable for owners of classic cars, RVs, boats, and seasonal vehicles that require reliable power management.</p><p>The company's expertise extends to complete electrical system protection and maintenance. Their selection of <a href="/1894-wirthco-fuse-2676">fuses</a> and <a href="/1894-wirthco-fuse-blocks-200458">fuse blocks</a> provides essential circuit protection for both OEM replacement and custom electrical installations. Understanding that proper power delivery starts with quality components, WirthCo manufactures <a href="/1894-wirthco-vehicle-battery-2476">vehicle batteries</a> designed to meet the demanding requirements of modern automotive electrical systems.</p><h3>Innovation Meets Practical Design</h3><p>What sets WirthCo apart is their focus on user-friendly design backed by solid engineering. Products like their <a href="/1894-wirthco-multi-purpose-funnel-14561">multi-purpose funnels</a> demonstrate the company's ability to improve even simple maintenance tasks through thoughtful product development. Each WirthCo accessory reflects decades of understanding customer needs in garages, workshops, and on the road.</p><p>Whether you're managing a fleet, maintaining a vintage vehicle collection, or simply looking for reliable electrical components for your daily driver, WirthCo Engineering delivers accessories that combine innovative features with practical functionality. Their continued investment in product development and patent portfolio ensures they remain at the forefront of automotive aftermarket solutions.</p>

Part Number

20138
06/03/2036 7:41 AM
Sale Price

$31.98

1 left at this price

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Product Details

The WirthCo 20138 is a vertically operated knife-blade battery disconnect switch designed to protect your vehicle and equipment against electrical system fires, tampering, theft, and battery drain. Perfect for mounting on a battery post to disconnect the ground and battery, this switch provides a simple and effective way to eliminate parasitic power draw when vehicles are in storage or not in use.

Key Features:

  • 250 amps continuous and 750 amps surge capacity at 12 volts
  • Features a 5/8" diameter post for receiving standard battery cable clamps
  • Conducting capacity equivalent to a #1 AWG battery cable
  • Made in the USA
  • Vertical operation makes it easy to reach and operate
  • Suitable for installation on negative or positive battery post and all voltage systems

Great for cars, RV, ATV, UTV, trucks, boats, campers, and other power disconnect purposes. Also suitable for medium duty trucks and farm machinery. This patented knife-blade design provides a fast and reliable way to extend battery life by preventing unwanted electrical drain during storage or maintenance periods.

It was easy to find what you want and the price is good also and I will be ordering from you all again thank you. Jesse

Very quick to order. Called to confirm availability. Will see how we do on delivery, especially the direct from manufacturer parts.

Reasonable price. I like that I can use my Amazon account. Very convenient!

Easy to use website, great communication, and product was exactly as described.

I have been successful placing my order today.

Great price, free shipping and offered Amazon payments!!

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