Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7
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Description
Athearn ATHG63839 HO Genesis Motor Retrofit Kit for RTR SD45 / SD40 LocomotivesAthearn ATHG63839 HO Genesis Motor Retrofit Kit for RTR SD45 SD40 Locomotives Overview Three benefits to Genesis power to your RTR Locomotives: Streamlined DCC speed curves Lower motor current draw Quieter motor operation for DCC Sound Features Simple Installation Molded on motor saddle mounts Included extended Dog Bone universal Balanced Flywheels DCC Ready! NMRA 8 pin and Decoder Harness plugs Pre soldered motor wire leads
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 2105 reviews
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Product Reviews
★★★★★ 2
Wouldn’t buy again
We got these to help our 6-year-old fall asleep. We were looking for something that was yummy and worked for sleep; these didn’t do either. My son didn’t like the taste and when he did finally take it, he didn’t fall asleep. We never took it again.
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Reviewed in the United States on July 11, 2025
★★★★★ 5
My children occasionally need a really good nights rest.
Sometimes my kids need a good night's rest and this is my go-to product for that! The raspberry flavor makes it easy for them to take as well.
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Reviewed in the United States on August 6, 2024
★★★★★ 5
First time
Works like a champ
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Happily Surprised
These actually work as described! Very pleased
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Reviewed in the United States on March 29, 2026
★★★★★ 3
Didn't Notice Difference
The taste is actually pretty good, honestly it's more like a treat than a supplement... but I haven't noticed any significant changes after going through the entire bottle. They didn't cause any upset stomach or side effects, which is a plus, but the overall benefits feel negligible.
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Reviewed in the United States on May 11, 2026
