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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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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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4.0 ★★★★★
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Paul P.
Louisville, US
★★★★★ 5
Perfect
Color: 20pcs
Excellent value and a perfect replacement for the OEM clips. Nice secure hold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
G
Verified Purchase
Guillo
San Leandro, US
★★★★★ 5
Protección!
Exelente!
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Reviewed in the United States on May 22, 2026
J
Verified Purchase
Jesus suarez
Carnegie, US
★★★★★ 5
Recomendado
Si utilizas un 4.6L Stoker es obligatorio utilizar en cada cambio de aceite.
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Reviewed in the United States on May 30, 2026
E
Verified Purchase
Ed H.
Charlottesville, US
★★★★★ 5
Hard to find.
Good stuff. Hard to find. It should extend my engine life.
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Reviewed in the United States on April 2, 2026
D
Verified Purchase
doug kowitz
Alexandria, US
★★★★★ 4
Great product
Quick delivery.
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Reviewed in the United States on April 29, 2026

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