Wirthco 20138 Knife Switch-Top Post

by WirthCo

Product Features

• Dimensions: 3in.L x 4in.W x 2in.H

Product Details

• Item Weight: 3.4 pounds
• Shipping Weight: 12 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B000CQBND0
• Item model number: 20138
• Average Customer Review: 4.7 out of 5 stars  See all reviews (9 customer reviews)
• Amazon Best Sellers Rank: #19,286 in Automotive (See Top 100 in Automotive)
  • #40 in Automotive > RV Parts & Accessories > Plumbing > Freshwater Systems

Product Description

Fast, easy way to disconnect battery to avoid electrical shorts, fires and battery drain. Discourages auto theft. Works with 12 to 36 Volt systems. Tested to 750 Amps. Rugged brass and copper construction. Clamp and post fit standard battery post and cable connectors.

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful:

5.0 out of 5 stars 2007 - 2011 Jeep Wrangler Battery Disconnect Knife Switch, January 27, 2011

By 

Larry K. Rowin (San Diego California) - See all my reviews
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Amazon Verified Purchase

This review is from: Wirthco 20138 Knife Switch-Top Post (Misc.)

I saw this at my local RV repair shop for $[...] plus they wanted $25 bucks to install it. I found it here for about $24 and now it has been even lowered to $21. Easy 10 min. installation. and saves time disconnecting your battery when pulling a vehicle behind your RV.

5 of 6 people found the following review helpful:

5.0 out of 5 stars Wirthco 20138 Knife Switch-Top Post, September 6, 2009

By 

MooieMoo (Ohio) - See all my reviews

Amazon Verified Purchase

This review is from: Wirthco 20138 Knife Switch-Top Post (Misc.)

Just what we needed to keep our tractor battery from dying a slow, current-leaky death. Good transaction, speedy shipping, very satisfied!

2 of 2 people found the following review helpful:

4.0 out of 5 stars beefy switch, June 22, 2011

By 

Thomas G. Johnson (San Diego) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Wirthco 20138 Knife Switch-Top Post (Misc.)

I searched all the auto parts stores around where I live in San Diego and all they had to offer in the way of an electrical current "on-off" switch was the type with a green plastic knob. Having had these before and inevitably enduring their failure, I was determined to buy a switch that has more to offer than the green plastic knob. I found it at (where else?) Amazon.com of course! This knife switch has a visual confirmation that the current is either "on" or "off". When the green plastic knob type fails there is no visual clue so you have to go through a sequence of disconnecting electrical connections and eliminating possible culprits. A real pain in the you-know-what. If you are in need of this type of switch, do yourself a big favor. Pay a little more and get a LOT more...performance. Four instead of five stars is because it could be made even stronger without much more cost. More than adequate as it is though.