Skip to content

Train Control Systems KA4 Keep Alive 1668

Marsoni M251S
Sale price$22.95
Pay 4 payments of $5.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Train Control Systems KA4 Keep Alive 1668TCS Keep Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The 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 Blue and a Black w White Stripe wire to attach it to a decoder. Dimensions: . 52 x . 52 x . 45 or 13. 22mm x 13. 22mm x 11.
Easy Shipping

Quick Dispatch:

Your Train Control Systems KA4 Keep Alive 1668 orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Train Control Systems KA4 Keep Alive 1668 ships.

Need Help?
Questions about Train Control Systems KA4 Keep Alive 1668, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Train Control Systems KA4 Keep Alive 1668 in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1104 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Donte P
Natrona Heights, US
★★★★★ 5
Great product.
Color: Style A:Pink
Great quality. The light is bright and it’s easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Verified Purchase
Debra Loughman
Draper, US
★★★★★ 5
Pretty in Pink
Color: Style A:Pink
Pretty color, stands out day or night. No problem getting suction cups on, easier if you twist them a little they go right in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
S
Verified Purchase
shiko
Lexington, US
★★★★★ 5
Legit Product.
Color: Style A:Pink
Looks like the image. Works well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
R
Verified Purchase
Richard Gonzalez
Natrona Heights, US
★★★★★ 5
Great item!
Color: Style A:Pink
Excellent item, easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
G
Verified Purchase
George T.
Phoenix, US
★★★★★ 5
Works fine for me
Color: Style A:Pink
Everything worked as it should really happy with the fact that it came with a few sticky back tie downs to help keep the cable from swinging around. I'm hoping this one will last longer than my last one. ( Purchased from a different distributor.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

recommand products