Skip to content
    • 💰 Enjoy Exclusive savings today, no coupon needed | ⭐️ WE NOW SHIP TO CANADA ⭐️
      • 💰 Enjoy Exclusive savings today, no coupon needed | ⭐️ WE NOW SHIP TO CANADA ⭐️
      Brass Trains for Sale, HO Scale Model Trains, Parts & MoreBrass Trains for Sale, HO Scale Model Trains, Parts & More
      • $0.00
        • No products in the cart.

      • Cart

        No products in the cart.

      • Home
      • Shop

        TRAINS

        • Brass

        • Diesel

        • Steam

        • Logging Locomotives

        • Rolling Stock

        • N-Scale

        • Search by Railroad Name

        DCC & Sound

        DCC & Sound, All
        Decoders
        Boosters & Starter Systems
        Digitrax
        SoundTraxx
        Train Control Systems

        Brands

        AHM Rivarossi
        Athearn
        Atlas
        Brass United
        Broadway Limited
        IHC
        Intermountain
        Kato

        FOR YOUR LAYOUT

        Buildings & Scenery
        Woodland Scenics
        Parts
        Tools & Supplies
        NWSL
        Track & Accessories

        Brands

        MTH
        Overland Models
        Pacific Fast Mail
        Proto 2000
        Sunset Brass
        Tenshodo
        Walthers
        Westside Model Co
      • Sell Your Trains
        • How to Sell Model Trains
        • Get a Quote
      • Customize
      • About
      • Blog
      • Help
        • Contact
        • Shipping & Returns
      Sale!
      Home / DCC & Sound / Train Control Systems

      Train Control Systems TCS 1667 KA4-C Keep Alive Power Supply HO W/Quick Plug

      $31.79 $29.56

      3 in stock

      OR

      Browse Categories
      • Train Type
        • Brass Locomotives
        • Diesel Locomotives
        • Steam Locomotives
        • Logging Locomotives
        • Rolling Stock
        • N Scale
      • Railroad Name
        • Ann Arbor Railroad (AA)
        • Atchison Topeka Santa Fe (ATSF)
        • Atlantic Coast Line Railroad (ACL)
        • BNSF
        • Boston & Maine Railroad (BM)
        • Canadian Pacific (CP)
        • Chicago & North Western (CNW)
        • Conrail (CR)
        • CSX Transportation (CSX)
        • Denver & Rio Grande Western Railroad (D&RGW)
        • Denver Salt Lake (D&SL)
        • Erie Lackawanna Railway (EL)
        • Grand Trunk Western (GTW)
        • Great Northern (GN)
        • LMX Leasing
        • Los Angeles Railway (LARy)
        • Norfolk & Western Railway (NW)
        • Norfolk Southern Railway (NS)
        • New York Central (NYC)
        • Nickel Plate Road (NKP)
        • Northern Pacific
        • Pennsylvania Railroad (PRR)
        • Southern Pacific (SP)
        • Spokane, Portland & Seattle Railway (SP&S)
        • Union Pacific (UP)
        • Western Pacific (WP)
        • Undecorated
        • Uncategorized
      • Brand
        • Bowser
        • Athearn
        • Atlas
        • Broadway Limited Imports
        • Intermountain
        • Kato
        • MTH
        • Overland Models
        • Pacific Fast Mail
        • Proto 2000
        • Sunset Brass
        • Tenshodo
        • Walthers
        • Westside Model Co
      • DCC & Sound
        • Decoders
        • Boosters & Starter Systems
        • Digitrax
        • SoundTraxx
        • Train Control Systems
      • Buildings & Scenery
        • Woodland Scenics
      • Tools & Supplies
        • NWSL
        • Parts
      • Track & Accessories
      • Description
      • Additional information

      Train Control Systems TCS #1667 KA4-C Keep Alive Power Supply with 2 pin quick connector harness

      * The Keep-Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work.
      * KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the efficiency of the motor).
      * This Keep-Alive® includes a 2-Pin Quick Connector Harness for attaching the KA to the decoder.
      * Dimensions: .52″ x .52″ x .45″ or 13.22mm x 13.22mm x 11.55mm
      * New in unopened packaging
      * Will combine shipping on multiple items

      ***
      Orders ship same or next business day. However, all US shipping carriers continue to experience extended transit times resulting in delivery delays. Please consider this before purchasing.

      Weight0.8125 lbs
      Dimensions11.0 × 9.0 × 1.0 in

      Related products

      Quick View

      DCC & Sound

      Train Control Systems TCS #1559 Black Heat Shrink 3/32″ OD 5′ Length

      $10.95
      Sale!
      Quick View

      DCC & Sound

      DCC Concepts DCDZNSSA1 Zen Super High Power Stay Alive

      $24.99 $23.24
      Quick View

      DCC & Sound

      SoundTraxx 810012 MC-2 Microconnector Kit

      $8.79
      Quick View

      DCC & Sound

      Train Control Systems TCS 1366 HO Scale MC-1″ 1″ Harness 7-PIN JST to 8-Pin Plug

      $8.99
      About us

      We buy and sell HO scale trains, specializing in brass locomotives. Want to sell your model train collection? >>> Get a quote here. 

      Key Links
      • Shipping & Returns
      • Customizations & Upgrades
      • Contact Us
      Railroad History: Fun Fact
      According to History.com, 1916 was the top year for railroad track, when there were over 250,000 miles of track across the United States. That’s enough track to travel from the Earth to the moon.
      Copyright © 2023 NIGHTWATCH TRAINS
      • Home
      • Shop
      • Sell Your Trains
        • How to Sell Model Trains
        • Get a Quote
      • Customize
      • About
      • Blog
      • Help
        • Contact
        • Shipping & Returns
      • Login
      • ⭐️ WE NOW SHIP TO CANADA⭐️

      Login

      Lost your password?