We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'model railroad trains'.

O ON30 SCALE SILVER CITY MODELS RESIN STEAM BOILER LOGGING
O ON30 SCALE SILVER CITY MODELS RESIN STEAM BOILER LOGGING
$39.95
Time Remaining: 20h 23m
Buy It Now for only: $39.95
KMP Models HO HOn3 Steam Pile Driver Kit
KMP Models HO HOn3 Steam Pile Driver Kit
$59.00
Time Remaining: 1d 3m
Buy It Now for only: $59.00
BLACKSTONE MODELS HOn3 B370101 Snowplow Assembly for Blackstone K 27
BLACKSTONE MODELS HOn3 B370101 Snowplow Assembly for Blackstone K 27
$26.99
Time Remaining: 3d 12h 46m
Buy It Now for only: $26.99
BLACKSTONE MODELS HOn3 B370111 Road Pilot Assembly for Blackstone K 27
BLACKSTONE MODELS HOn3 B370111 Road Pilot Assembly for Blackstone K 27
$26.99
Time Remaining: 3d 12h 54m
Buy It Now for only: $26.99
BLACKSTONE MODELS HOn3 B370112 Switcher Pilot Assembly for Blackstone K 27
BLACKSTONE MODELS HOn3 B370112 Switcher Pilot Assembly for Blackstone K 27
$26.99
Time Remaining: 3d 12h 59m
Buy It Now for only: $26.99
Kitwood Hill Models ON30 ON3 Ore Bin and Tipple
Kitwood Hill Models ON30 ON3 Ore Bin and Tipple
$61.00 (4 Bids)
Time Remaining: 3d 19h 27m
Kitwood Hill Models ON30 ON3 Broach Supplies
Kitwood Hill Models ON30 ON3 Broach Supplies
$50.00 (5 Bids)
Time Remaining: 3d 19h 35m
16 Morgan Hill Models ON30 ON3 20 Logging Car Kits
16 Morgan Hill Models ON30 ON3 20 Logging Car Kits
$96.00 (2 Bids)
Time Remaining: 3d 20h 39m
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
$26.00
Time Remaining: 7d 7h 43m
Buy It Now for only: $26.00
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
$36.00
Time Remaining: 7d 7h 44m
Buy It Now for only: $36.00
0 ON30 MILEPOST MODELS ROGERS PLUMBING  HEATING SUPPLY 1809 NEW RE ISSUE
0 ON30 MILEPOST MODELS ROGERS PLUMBING HEATING SUPPLY 1809 NEW RE ISSUE
$49.50
Time Remaining: 8d 9m
Buy It Now for only: $49.50
SUPERB BRIEFCASE MODEL RAILWAY LAYOUT AND TRAIN BY MOUNTAIN LAKE MODELS RAILWAYS
SUPERB BRIEFCASE MODEL RAILWAY LAYOUT AND TRAIN BY MOUNTAIN LAKE MODELS RAILWAYS
$1,727.14
Time Remaining: 11d 10h 2m
Buy It Now for only: $1,727.14
Dundas Models DM56 Festiniog Railway Granite End Door Wagon Pack of 5 T48
Dundas Models DM56 Festiniog Railway Granite End Door Wagon Pack of 5 T48
$37.65
Time Remaining: 13d 21h 17m
Buy It Now for only: $37.65
Dundas Models DM25 Festiniog Railway 2 Ton Steel Sided Slate Wagon 5 Pack T48
Dundas Models DM25 Festiniog Railway 2 Ton Steel Sided Slate Wagon 5 Pack T48
$35.56
Time Remaining: 13d 21h 18m
Buy It Now for only: $35.56
KMP Models HO Scale Steam Pile Willamette Steam Pile Driver Craftsman Kit NIB
KMP Models HO Scale Steam Pile Willamette Steam Pile Driver Craftsman Kit NIB
$40.00
Time Remaining: 18d 21h 13m
Buy It Now for only: $40.00
O On3 On30 WISEMAN MODELS OKT 01 KLEIBER CLOSED CAB LIGHT DELIVERY TRUCK KIT
O On3 On30 WISEMAN MODELS OKT 01 KLEIBER CLOSED CAB LIGHT DELIVERY TRUCK KIT
$54.95
Time Remaining: 19d 2h 50m
Buy It Now for only: $54.95
O On3 On30 1 48 WISEMAN MODELS OKT 03 KLEIBER CLOSED CAB CANOPY TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 03 KLEIBER CLOSED CAB CANOPY TRUCK KIT
$59.95
Time Remaining: 19d 3h
Buy It Now for only: $59.95
O On3 On30 1 48 WISEMAN MODELS OKT 04 KLEIBER CLOSED CAB CEMENT MIXER TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 04 KLEIBER CLOSED CAB CEMENT MIXER TRUCK KIT
$64.95
Time Remaining: 19d 3h 4m
Buy It Now for only: $64.95
O On3 On30 1 48 WISEMAN MODELS OKT 06 KLEIBER CLOSED CAB FLAT BED TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 06 KLEIBER CLOSED CAB FLAT BED TRUCK KIT
$54.95
Time Remaining: 19d 3h 8m
Buy It Now for only: $54.95
O On3 On30 1 48 WISEMAN MODELS OKT 07 KLEIBER CLOSED CAB KEROSENE TANK TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 07 KLEIBER CLOSED CAB KEROSENE TANK TRUCK KIT
$64.95
Time Remaining: 19d 3h 10m
Buy It Now for only: $64.95
O On3 On30 1 48 WISEMAN MODELS OKT 09 KLEIBER CLOSED CAB OVAL OIL TANK TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 09 KLEIBER CLOSED CAB OVAL OIL TANK TRUCK KIT
$64.95
Time Remaining: 19d 3h 11m
Buy It Now for only: $64.95

Other On30 Scale train items recently purchased through this site:

Kitwood Hill Models ON30 ON3 Broach Supplies
16 Morgan Hill Models ON30 ON3 20 Logging Car Kits
0 ON30 MILEPOST MODELS ROGERS PLUMBING HEATING SUPPLY 1809 NEW RE ISSUE
KMP Models HO Scale Steam Pile Willamette Steam Pile Driver Craftsman Kit NIB
KMP Models HO HOn3 Steam Pile Driver Kit
ON30 SILVER CITY MODELS DRGW 1872 14 4 WHEEL GONDOLA CAR KIT + Paint
O On3 On30 1 48 WISEMAN MODELS OKT 04 KLEIBER CLOSED CAB CEMENT MIXER TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 07 KLEIBER CLOSED CAB KEROSENE TANK TRUCK KIT
BLACKSTONE MODELS HOn3 B370101 Snowplow Assembly for Blackstone K 27
HON3 6 PACKS OF DRGW DECAL NEW MICOSCALESANJUAN TIMBER CREEK MODELS
O ON30 SCALE SILVER CITY MODELS RESIN STEAM BOILER LOGGING
ON3 ON30 SILVER CITY MODELS DRGW 1872 17 4 WHEEL GONDOLA CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 12 4 WHEEL BOX CAR KIT
ON3 ON30 SILVER CITY MODELS DRGW 1872 14 4 WHEEL GONDOLA CAR KIT
O On3 On30 1 48 WISEMAN MODELS OKT 20 KLEIBER OPEN CAB CEMENT MIXER TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 14 KLEIBER CLOSED CAB WRECKER TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 19 KLEIBER OPEN CAB CANOPY BED TRUCK KIT
BLACKSTONE MODELS HOn3 B370111 Road Pilot Assembly for Blackstone K 27
O On3 On30 1 48 WISEMAN MODELS OKT 28 KLEIBER OPEN CAB STAKE BED TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 25 KLEIBER OPEN CAB OVAL OIL TANK TRUCK KIT
O On3 On30 WISEMAN MODELS OKT 01 KLEIBER CLOSED CAB LIGHT DELIVERY TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 09 KLEIBER CLOSED CAB OVAL OIL TANK TRUCK KIT
O On3 On30 WISEMAN MODELS OKT 17 KLEIBER OPEN CAB LIGHT DELIVERY TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 03 KLEIBER CLOSED CAB CANOPY TRUCK KIT
O On3 On30 1 48 WISEMAN MODELS OKT 23 KLEIBER OPEN CAB KEROSENE TANK TRUCK KIT