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Train Control Systems KA3-P Keep Alive 2004

Marsoni M251S
Sale price$29.95
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Train Control Systems KA3-P Keep Alive 2004TCS 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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  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
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George F.
Birmingham, US
★★★★★ 5
Size a tad small
Size: Large, Color: Black
So many compliments so don’t buy this if you don’t like people to notice. I’d say fits a tad on the small side.
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Reviewed in the United States on December 26, 2025
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Carla
Cuba, US
★★★★★ 5
Very stylish
Size: X-Large, Color: Black
Really nice… my husband received a lot of compliments on our cruise!
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Reviewed in the United States on January 4, 2026
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Verified Purchase
Ronald Boast
Battle Creek, US
★★★★★ 3
Nice blazer
Size: X-Large, Color: Black, Size: X-Large, Color: Black
Product was as described, son wanted it for a dance. Had it taken in a little for more custom fit
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Reviewed in the United States on July 18, 2025
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VGood
Grantham, US
★★★★★ 5
Really stylish
Size: Medium, Color: Black
Looks great. My son wore to a concert for Valentines day. His gf wore a copper dress...looked so good together.
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Reviewed in the United States on April 23, 2026
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CRUZAN1
Port Orchard, US
★★★★★ 1
Sizing issues
Size: 3X-Large, Color: Blue-square Plaid
Sent it back. Runs super small
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Reviewed in the United States on December 7, 2025

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