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NEW PIKO #97445 Southern Pacific ML4000 Diesel Locomotive #9001 w/ DCC/SOUND

NEW PIKO #97445 Southern Pacific ML4000 Diesel Locomotive #9001 w/ DCC/SOUND


Regular price $349.99
Regular price $399.99 Sale price $349.99
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  • RP25 wheels
  • Silky-smooth & powerful PIKO Mechanism for great low-speeds and precise running
  • Period-specific details
  • PIKO knuckle couplers
  • PIKO TrainSound® Decoder (on DCC/Sound versions)

A Little About The Prototype...

Krauss-Maffei of Germany worked closely with the Southern Pacific and the Denver & Rio Grande to develop a revolutionary new diesel-hydraulic locomotive. At the start of the 1960s, these beasts packed 4000 horsepower, a feat that would not be matched by American Diesel locomotive builders for many years. Typical American diesels of the time had only 2000 HP or less. The idea of replacing two locos with one in mainline service had great appeal. The hydraulic transmissions were an effort to eliminate the complexity and maintenance issues of electrical traction motors and all their related controls.

Three “Prototype” locos were delivered to SP in 1961 and three to D&RGW. These cab locos with their rounded noses and full carbodies looked very different than the slightly larger batch of “Series” hood locos later delivered to the SP. Upon delivery, both roads promptly put their KMs to work in the hardest possible service, with dynamometer cars often following to test every aspect. Performance was impressive, but teething problems quickly developed. German technicians sent over to the SP and D&RGW worked to address issues and train local maintenance crews. Over time, many modifications were made and reliability improved, but in the end, the locos may simply have been victims of a difference of cultures. Technology that was commonplace and successful in European railroads just did not mesh well with American railroad operation and maintenance practices. None of the six “Prototype” locos survived the decade, but they made an indelible mark with many thousands of fans.

We have added these to our website because these are such premium models we wanted our customers to have the ability to get them at a fair price!


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At, we want our customers to be completely satisfied with their purchases. If for any reason you are not satisfied with your purchase, we offer a 14-day return policy.

You may return your item(s) within 14 days of receiving your order for a full refund of the purchase price minus the shipping cost. To initiate a return, please contact us via email or phone and provide your order number and reason for return.

All returned items must be in their original condition, unused, and in their original packaging. We reserve the right to refuse a refund if the item(s) do not meet our return policy requirements.

Once we receive your returned item(s), we will inspect them to ensure that they meet our return policy requirements. If approved, we will process your refund within 7-10 business days to the original payment method used for the purchase.

Please note that the customer is responsible for the cost of return shipping. We recommend using a shipping method with tracking and insurance to ensure that your returned item(s) are received by us in good condition.

If you have any questions or concerns about our return policy, please don't hesitate to contact us. We are here to help and ensure that you are completely satisfied with your purchase.

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