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

O scale On30 scale Logging Truck custom weathered after historic pictures
O scale On30 scale Logging Truck custom weathered after historic pictures
$115.00
Time Remaining: 1d 42m
On30 or 0 scale Logging Truck custom built and weathered after historic picture
On30 or 0 scale Logging Truck custom built and weathered after historic picture
$148.00
Time Remaining: 1d 42m
On30 or 0 scale Logging Truck for diorama custom weathered lot 7
On30 or 0 scale Logging Truck for diorama custom weathered lot 7
$78.00
Time Remaining: 1d 42m
O scale or On30 Logging Steam Donkey custom weathered after historic picture
O scale or On30 Logging Steam Donkey custom weathered after historic picture
$145.00
Time Remaining: 1d 42m
O scale On30 Steam Tractor Logging Diorama custom weathered diorama
O scale On30 Steam Tractor Logging Diorama custom weathered diorama
$165.00
Time Remaining: 1d 42m
On30 or O scale Logging Truck custom weathered and built after historic picture
On30 or O scale Logging Truck custom weathered and built after historic picture
$146.00
Time Remaining: 1d 42m
O scale On30 Alaskan Tractor Caterpillar Logging Diorama custom weathered
O scale On30 Alaskan Tractor Caterpillar Logging Diorama custom weathered
$149.00
Time Remaining: 1d 42m
Old Ford Logging Truck custom weathered lot 4  O SCALE  ON30
Old Ford Logging Truck custom weathered lot 4 O SCALE ON30
$118.00
Time Remaining: 1d 42m
NEW Hawthorne Village ON30 Scale 2 6 0 Loco  Tender Christmas Express Bundle
NEW Hawthorne Village ON30 Scale 2 6 0 Loco Tender Christmas Express Bundle
$125.00
Time Remaining: 1d 11h 14m
DESIGN TECH FORKS CREEK PUMP HOUSE KIT DT 104 0 O SCALE 148
DESIGN TECH FORKS CREEK PUMP HOUSE KIT DT 104 0 O SCALE 148
$40.00
Time Remaining: 1d 22h 18m
Durango Press Silver Plume Store O Scale kit DP 74
Durango Press Silver Plume Store O Scale kit DP 74
$35.95 (1 Bid)
Time Remaining: 1d 22h 24m
STONEY CREEK STATION SCENE KIT 023 Craftsman Kit O Scale 3 in 1
STONEY CREEK STATION SCENE KIT 023 Craftsman Kit O Scale 3 in 1
$325.00
Time Remaining: 1d 22h 24m
CHOOCH ENTERPRISES SMALL TOWN WAREHOUSE KIT 6110 O SCALE 148
CHOOCH ENTERPRISES SMALL TOWN WAREHOUSE KIT 6110 O SCALE 148
$125.00
Time Remaining: 1d 22h 33m
Th Original Whistle Stop DRGW RGS Water Tank Kit by VT Shops O Scale 1
Th Original Whistle Stop DRGW RGS Water Tank Kit by VT Shops O Scale 1
$40.00
Time Remaining: 1d 22h 47m
Th Original Whistle Stop DRGW RGS Water Tank Kit by VT Shops O Scale 2
Th Original Whistle Stop DRGW RGS Water Tank Kit by VT Shops O Scale 2
$40.00
Time Remaining: 1d 22h 51m
On3 On30 O scale Thomas A Yorke Stone Store O 107 kit 1 48 Thomas fsm
On3 On30 O scale Thomas A Yorke Stone Store O 107 kit 1 48 Thomas fsm
$100.00
Time Remaining: 1d 22h 58m
Trains of Texas Gilpin Hotel O Scale On3 On30 O Scale
Trains of Texas Gilpin Hotel O Scale On3 On30 O Scale
$125.00
Time Remaining: 1d 23h 2m
Backwoods Logging Donkey SKIDDER Built up Finished Model HO Scale 1 87
Backwoods Logging Donkey SKIDDER Built up Finished Model HO Scale 1 87
$84.00
Time Remaining: 2d 8h 46m
Scale Model Masterpieces Yorke Logging Camp Cook House Kit HO
Scale Model Masterpieces Yorke Logging Camp Cook House Kit HO
$54.24
Time Remaining: 2d 19h 3m
Buy It Now for only: $54.24
On30 O scale Logging Tractor Donkey custom weathered
On30 O scale Logging Tractor Donkey custom weathered
$165.00
Time Remaining: 2d 19h 15m
ULRICH O SCALE 1 48 On3 On30 FORD CAB  CHASSIS NARROW GAUGE ALL METAL
ULRICH O SCALE 1 48 On3 On30 FORD CAB CHASSIS NARROW GAUGE ALL METAL
$49.99
Time Remaining: 2d 20h
Buy It Now for only: $49.99

Other On30 Scale train items recently purchased through this site:

Durango Press Silver Plume Store O Scale kit DP 74
RDA 153 Bucks Bath HouseRailway Design AssociatesWood Building KitOn30 Scale
On3 On30 O scale Thomas A Yorke Stone Store O 107 kit 1 48 Thomas fsm
DESIGN TECH FORKS CREEK PUMP HOUSE KIT DT 104 0 O SCALE 148
Trains of Texas Gilpin Hotel O Scale On3 On30 O Scale
ME Micro Engineering 14 453 5 Left Hand LH Turnout Switch Code 70 On30 Scale
CHOOCH ENTERPRISES SMALL TOWN WAREHOUSE KIT 6110 O SCALE 148
Bachmann On30 Scale Train Stearns Heisler DCC Equipped Midwest Quarry 28806
Bachmann On30 Scale Train Whitcomb 50 Ton Yellow Black Stripes 29203
O SCALE 1 48 WISEMAN 1912 MODEL T FORD REA EXPRESS TRUCK KIT NM 910 NMC
2 car set 1203 Scale Narrow Gauge Fall River Gondola flat car
Bachmann On30 Scale Train Mining Wood Side Dump Cars 3 per box 29801
Grandt Line 3402 05 A Garden Wedding Kit Dr and Mrs Danforth 1 4 On3 Scale
Bachmann On30 Scale Train Steam 0 4 2 Porter DCC Equipped Greenbrier
O SCALE 1 48 WISEMAN 1912 MODEL T FORD DEPOT HACK KIT NM 907 NATIONAL MOTOR CO
O SCALE On3 On30 BANTA MODEL WORKS 6145 Doc Holidays Apothecary
STONEY CREEK STATION SCENE KIT 023 Craftsman Kit O Scale 3 in 1
Bachmann On30 Scale Train Caboose Off Set Cupola Durango Silverton 26565
Bachmann On30 Scale Train 18 Freight Cars High Gondola 2 box 26541
F G scale BANTA MODEL WORKS 8131 BO Hotel
Bachmann On30 Scale Train Logging Mining Cars V Dump Cars 3 per box 29802
HO Scale Vehicles Equipmet LUMBER CARRIER Built up Model 1 87 Logging
F G scale BANTA MODEL WORKS 8111 Roubies Saloon
O SCALE 1 48 WISEMAN 1912 MODEL T FORD ICE DELIVERY TRUCK KIT NM 905
1 48 O SCALE On3 On30 WISEMAN MODEL SERVICES FORDSON STYLE FARM TRACTOR KIT