Train Control Systems KA4 Keep Alive 1668

Train Control Systems KA4 Keep Alive 1668

Marsoni

M251S

$22.95

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.

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i AM NOT SURE THAT 4 STARS IS A FAIR SCORE, MY DOG IS AN AGGRESSIVE CHEWER, NEEDLESS TO SAY WITHIN 2 DAYS ALL THE TABS WERE OFF, BUT THERE WERE NUBS LEFT AND SHE CAN USE THAT. HERE IS A WHAT NOT TO DO, BRING IT TO THE DOG PARK, THEY ALL HAVE A BLAST BUT IF YOUR A BULLY/PIT MIX AND DECIDE TO SINK THEIR TEETH INTO IT, IT DOES DEFLAT. LESSONS LEARNED STILL A FUN TOY.

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Reviewed in the United States on May 13, 2026

Verified Purchase

Jedi and Waggy

Omaha, US

★★★★★ 5

Sturdy ball with pump

Color: Black/White, Size: Medium

Thick material so it won't pop so easy. Comes with a hand pump and 2 ball needles. Tabs for the dog to carry in his mouth. Although my dog bites the whole thing to carry. Savage loves it!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 4, 2026