


Train Control Systems KA2-P Keep Alive 2003
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Train Control Systems KA2-P Keep Alive 2003TCS Keep Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. Newly redesigned and coming in at half the size of a KA4, the KA2 will power HO or N scale locomotives with approximately one third of the capacitance of KA3 KA4 devices (depending on the locomotive and motor). This Keep Alive includes a 2 Pin Quick Connector Harness for plugging into decoders with a
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Reviewed in the United States on April 6, 2026
★★★★★ 4
Size up!
Size: 16, Color: Black
For sizing size up as much as you can. Good quality but sizing wasn’t great.
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Perfect match and fit!
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It look great on my nephew and matched his pants perfectly!
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Reviewed in the United States on December 3, 2025
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Good fit
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