SKU: 85513547358

MTH # 50-1912 ( Protosound 3.0 ) Diesel Locomotive Upgrade Kit ( Sealed )

Sale price$149.40 Regular price$166.00
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Description

MTH # 50-1912 ( Protosound 3.0 ) Diesel Locomotive Upgrade Kit ( Sealed )Proto Sound 3. 0 Diesel Locomotive Upgrade Kit Note: If you are upgrading a PS2 engine with Operating Pantographs then order 50 1911.. FEATURES Speed Control Variable Intensity Diesel Exhaust Smoke DCS Command Control and all the features that come with the latest command control system. (2) Remotely controlled Proto couplers PS3 Headlight control 28 F Function DCC Features Now operators can enjoy Proto Sound 3. 0 in older M. T. H. locomotives

Proto-Sound 3.0 Diesel Locomotive Upgrade Kit

Note: If you are upgrading a PS2 engine with Operating Pantographs then order 50-1911..

FEATURES

  • Speed Control
  • Variable Intensity Diesel Exhaust Smoke
  • DCS Command Control and all the features that come with the latest command control system.
  • (2) Remotely controlled Proto-couplers
  • PS3 Headlight control
  • 28 F-Function DCC Features

Now operators can enjoy Proto-Sound 3.0 in older M.T.H. locomotives outfitted with M.T.H.'s original Proto-Sound or Proto-Sound 2.0. Other manufacturer's O Gauge and G Gauge locomotives may also be candidates for a Proto-Sound 3.0 upgrade kit (see the FAQ Section to determine if non-M.T.H. locomotives are upgrade candidates).

Each kit consists of a Proto-Sound 3.0 circuit board, a coil wound Proto-Coupler, various wire harnesses, new speaker, new mounting brackets, and headlight and backup light bulbs. The kits are warranted for 90 days when installed by a participating M.T.H. Authorized Service Center. Each kit will require programming of a sound set prior to operation. The sound sets can be downloaded from the M.T.H. website at no charge but will require the DCS system in order to be uploaded into the upgraded locomotive.

Virtually all features found in factory equipped Proto-Sound 3.0 locomotives are included in the Proto-Sound 3.0 Upgrade Kit. These include conventional and command mode Proto Speed Control, full Ps3 digital sound effects, DCS command features, conventional and command mode Proto-Coupler operation, conventional and command mode, synchronized smoke on locomotives equipped with fan driven M.T.H. smoke units, battery-less backup power and operating headlight control.

M.T.H. strongly encourages consumers to utilize the nationwide network of M.T.H. Authorized Service Centers for installation of the Proto-Sound 3.0 upgrade kit. Upgrading a locomotive to Proto-Sound 3.0 may require significant rewiring of the locomotive, installation of new mounting brackets, soldering and careful wire management to prevent pinched wires that could damage the circuit boards. Consult a participating M.T.H. Authorized Service Center for installation costs. Cost are estimated to range from $150.00 to $200.00 depending on the locomotive.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 85513547358

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Tonya
Massapequa, US
★★★★★ 5
Just as described
Size: X-Large, Color: Black
Pullover is soft and comfortable. Too soon to comment on shrinkage but quality seems to be good. Not heavy duty but good quality.
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William M Murray
Alexandria, US
★★★★★ 4
FYI
Size: 3X-Large, Color: Khaki
Me and my wife liked the look of the sweatshirt. The color is what I expected. Shirt was comfortable. I got the 3X and it fit pretty good. However I was debating if the 2X would have been better, but I have big shoulders and it may have been tight. Length was pretty good, but my thoughts it could have been just a tad longer.
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Reviewed in the United States on November 7, 2025
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ANTONIO SUAREZ MUÑOZ
Waukegan, US
★★★★★ 5
Lo fácil que es hacer las compras
Size: Medium, Color: Dark Blue
Excelente producto... muy buen buzo
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poolman
Louisville, US
★★★★★ 5
Perfect Fit the First Time
Size: XX-Large, Color: Navy Blue
This is a really, nice, comfy quarter zip that I wore with just a basic white T-shirt. It was a night out with my significant other and she even complimented how classy it looked. The fit is true to size. I would definitely recommend this product and feel that it is worth the price. It is not only comfortable, it can be worn different ways should you decide to wear a dress shirt underneath. I wear a size 2x and have a size 52 chest. It was not tight and it was not baggy. This definitely felt like a quality product.
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Reviewed in the United States on January 14, 2026
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Robert
Birmingham, US
★★★★★ 5
Good sweater
Size: XX-Large, Color: Khaki
Fits well and is well made.
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Reviewed in the United States on May 3, 2026

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