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MTH Trains - DCS Accessory Interface Unit (AIU) (50-1004) Items for Sale

First Catalog: MTH 2009 Ready-To-Run Catalog

Most Recent Catalog: MTH 2020-21 Ready-To-Run Catalog

Part Number: 50-1004

Category: Accessory

Show Catalog History

Catalog/Flyer	Page Number	Catalog Price
MTH 2009 Ready-To-Run Catalog	87	$99.95
MTH 2009 Volume 1 Catalog	5	$99.95
MTH 2009 Volume 2 Catalog	5	$99.95
2010 RailKing One Gauge Catalog	5	$99.95
MTH 2010 HO No. 1 Catalog	32	$99.95
MTH 2014 HO Model Trains Catalog	94	$99.95
MTH 2014 Ready-to-Run Catalog	87	$119.95
MTH 2014 Volume 1 Catalog	7	$109.95
MTH 2014 Volume 2 Catalog	6	$119.95
MTH 2015 HO Model Trains Catalog	4, 118	$119.95
MTH 2015 RailKing One-Gauge Trains Catalog	4	$119.95
MTH 2015 Ready-To-Run Catalog	86	$119.95
MTH 2015 Volume One Catalog	6	$119.95
MTH 2015 Volume Two Catalog	6	$119.95
MTH 2016 Ready-To-Run Catalog	86	$119.95
MTH 2016 Volume 1 Catalog	6	$119.95
MTH 2016 Volume 2 Catalog	6	$119.95
MTH 2017 Railking One-Gauge Trains Catalog	4	$119.95
MTH 2017 Ready-To-Run Catalog	86	$119.95
MTH 2017 Volume 1 Catalog	6	$119.95
MTH 2017 Volume 2 Catalog	6	$119.95
MTH 2017-18 HO Model Trains Catalog	4, 93	$119.95
MTH 2018 Digital Command System Catalog	9	$119.95
MTH 2018 Ready-To-Run Catalog	87	$119.95
MTH 2018 Volume One Catalog	9	$119.95
MTH 2018 Volume Two Catalog	9	$119.95
MTH 2019 Ready-To-Run Catalog	9	$119.95
MTH 2019 Volume One Catalog	9	$119.95
MTH 2019 Volume Two Catalog	9	$119.95
MTH 2019-20 HO Gauge Trains Catalog	7, 77	$119.95
MTH 2019-20 RailKing One-Gauge Trains Catalog	7	$119.95
MTH 2019-20 S Gauge Trains Catalog	7, 29	$119.95
MTH 2020 Volume One Catalog	9	$119.95
MTH 2020 Volume Two Catalog	9	$119.95
MTH 2020-21 HO Gauge Trains Catalog	7, 89	$119.95
MTH 2020-21 Ready-To-Run Catalog	9	$119.95

Show Catalog History

Catalog/Flyer	Page Number	Catalog Price
MTH 2009 Ready-To-Run Catalog	87	$99.95
MTH 2009 Volume 1 Catalog	5	$99.95
MTH 2009 Volume 2 Catalog	5	$99.95
2010 RailKing One Gauge Catalog	5	$99.95
MTH 2010 HO No. 1 Catalog	32	$99.95
MTH 2014 HO Model Trains Catalog	94	$99.95
MTH 2014 Ready-to-Run Catalog	87	$119.95
MTH 2014 Volume 1 Catalog	7	$109.95
MTH 2014 Volume 2 Catalog	6	$119.95
MTH 2015 HO Model Trains Catalog	4, 118	$119.95
MTH 2015 RailKing One-Gauge Trains Catalog	4	$119.95
MTH 2015 Ready-To-Run Catalog	86	$119.95
MTH 2015 Volume One Catalog	6	$119.95
MTH 2015 Volume Two Catalog	6	$119.95
MTH 2016 Ready-To-Run Catalog	86	$119.95
MTH 2016 Volume 1 Catalog	6	$119.95
MTH 2016 Volume 2 Catalog	6	$119.95
MTH 2017 Railking One-Gauge Trains Catalog	4	$119.95
MTH 2017 Ready-To-Run Catalog	86	$119.95
MTH 2017 Volume 1 Catalog	6	$119.95
MTH 2017 Volume 2 Catalog	6	$119.95
MTH 2017-18 HO Model Trains Catalog	4, 93	$119.95
MTH 2018 Digital Command System Catalog	9	$119.95
MTH 2018 Ready-To-Run Catalog	87	$119.95
MTH 2018 Volume One Catalog	9	$119.95
MTH 2018 Volume Two Catalog	9	$119.95
MTH 2019 Ready-To-Run Catalog	9	$119.95
MTH 2019 Volume One Catalog	9	$119.95
MTH 2019 Volume Two Catalog	9	$119.95
MTH 2019-20 HO Gauge Trains Catalog	7, 77	$119.95
MTH 2019-20 RailKing One-Gauge Trains Catalog	7	$119.95
MTH 2019-20 S Gauge Trains Catalog	7, 29	$119.95
MTH 2020 Volume One Catalog	9	$119.95
MTH 2020 Volume Two Catalog	9	$119.95
MTH 2020-21 HO Gauge Trains Catalog	7, 89	$119.95
MTH 2020-21 Ready-To-Run Catalog	9	$119.95

Listed below are current active eBay auctions for this Item.
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Current eBay Auctions

  Title:  MTH 50-1004 Digital Command System DCS Accessory Interface Unit New
  Currency:  USD
  Current Bid Price: $39.99 ( 0 bids)
  Auction Ends:  26th October, 2026
  Item location:  San Pablo, US
Seller Rating: 1228/100.0%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit EXBox
  Currency:  USD
  Buy It Now Price: $57.99
  Item location:  Flowery Branch, US
Seller Rating: 787300/99.8%


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  Title:  MTH 50-1004 Digital Command System Accessory Interface Unit EX
  Currency:  USD
  Buy It Now Price: $60.79
  Item location:  Flowery Branch, US
Seller Rating: 787297/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit AIU O-Gauge no box
  Currency:  USD
  Buy It Now Price: $69.99
  Item location:  Westminster, US
Seller Rating: 21024/100.0%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit AIU Complete Open Untested READ
  Currency:  USD
  Buy It Now Price: $71.99 or Best Offer
  Item location:  Alexandria, US
Seller Rating: 4795/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit EXBox
  Currency:  USD
  Buy It Now Price: $72.74
  Item location:  Flowery Branch, US
Seller Rating: 787297/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit EXBox
  Currency:  USD
  Buy It Now Price: $77.41
  Item location:  Flowery Branch, US
Seller Rating: 787297/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit EXBox
  Currency:  USD
  Buy It Now Price: $77.41
  Item location:  Flowery Branch, US
Seller Rating: 787297/99.8%


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  Title:  MTH 50-1004 DCS AIU Accessory Interface Unit
  Currency:  USD
  Current Bid Price: $80.00 ( 0 bids) or Best Offer
  Auction Ends:  25th October, 2026
  Item location:  Summerfield, US
Seller Rating: 2780/100.0%


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  Title:  MTH Railking 50-1004 DCS Accessory Interface Unit
  Currency:  USD
  Buy It Now Price: $80.95
  Item location:  Ocala, US
Seller Rating: 112928/100.0%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit AIU
  Currency:  USD
  Buy It Now Price: $85.00
  Item location:  Laurel, US
Seller Rating: 1198/100.0%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit EXBox
  Currency:  USD
  Buy It Now Price: $95.05
  Item location:  Flowery Branch, US
Seller Rating: 787297/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit NIB
  Currency:  USD
  Buy It Now Price: $116.95
  Item location:  Fresno, US
Seller Rating: 519/99.6%


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  Title:  New DCS Accessory Interface Unit AIU O Gauge 50-1004 by MTH Electric Trains
  Currency:  USD
  Buy It Now Price: $119.95
  Item location:  Leesburg, US
Seller Rating: 3456/99.9%


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  Title:  DCS INTERFACE UNIT 50-1004 MTH ACCESSORY
  Currency:  USD
  Buy It Now Price: $125.00 or Best Offer
  Item location:  Glendale, US
Seller Rating: 4053/100.0%


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  Title:  MTH 50-1004 DCS AIU Accessory Interface Unit
  Currency:  USD
  Buy It Now Price: $129.99 or Best Offer
  Item location:  Melville, US
Seller Rating: 22679/99.8%


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  Title:  USED MTH 50-1004 DCS Accessory Interface Unit AIU wBox
  Currency:  USD
  Buy It Now Price: $134.99
  Item location:  Lilburn, US
Seller Rating: 34033/99.9%


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  Title:  MTH 50-1004 DCS Accessory Interface Unit AIU
  Currency:  USD
  Buy It Now Price: $139.99 or Best Offer
  Item location:  Freeport, US
Seller Rating: 27923/99.4%


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  Title:  MTH TRAINS - 50-1004- DCS ACCESSORY INTERFACE UNIT- BOXED- EXC- B1
  Currency:  USD
  Buy It Now Price: $147.99 or Best Offer
  Item location:  Morganville, US
Seller Rating: 115578/99.8%


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  Title:  MTH 50-1004 DCS Accessory Interface Unite AIU
  Currency:  USD
  Buy It Now Price: $149.99
  Item location:  Lilburn, US
Seller Rating: 34033/99.9%


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  Title:  DCS INTERFACE UNIT 50-1004 MTH ACCESSORY
  Currency:  USD
  Buy It Now Price: $149.99
  Item location:  Chambersburg, US
Seller Rating: 3557/99.6%


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Last Updated October 22, 2026, 8:14 pm
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