We've searched the internet and found the largest collection of O Scale trains for sale is on eBay. Below are the listings for 'F9'.

O Scale 2 Rail EMD F 9A Powered Kit F9001 PD
O Scale 2 Rail EMD F 9A Powered Kit F9001 PD
$250.00
Time Remaining: 15h 2m
Lionel 16946 New C  O F9 Well Car 3840
Lionel 16946 New C O F9 Well Car 3840
$34.95
Time Remaining: 3d 15h 49m
Lionel New 6 16983 Pennsylvania RR F9 well car
Lionel New 6 16983 Pennsylvania RR F9 well car
$41.00
Time Remaining: 4d 14h 29m
Buy It Now for only: $41.00
Lionel 6983 Pennsylvania Rail Road F9 Well Car W Cable Reels 6 16983 1997 C 9
Lionel 6983 Pennsylvania Rail Road F9 Well Car W Cable Reels 6 16983 1997 C 9
$49.00
Time Remaining: 4d 16h 54m
Buy It Now for only: $49.00
Vintage PEMCO PRR Engine HO f 9 Diesel
Vintage PEMCO PRR Engine HO f 9 Diesel
$50.00
Time Remaining: 5d 22h 17m
Buy It Now for only: $50.00
O Atlas Early ATSF F 9 Diesel F P OB 2 Rail C 7 1970s
O Atlas Early ATSF F 9 Diesel F P OB 2 Rail C 7 1970s
$48.97
Time Remaining: 6d 21h 35m
LIONEL Pensylvania RR F9 Well Car 6 16983 w Cable Reels Made in USA BRAND NEW
LIONEL Pensylvania RR F9 Well Car 6 16983 w Cable Reels Made in USA BRAND NEW
$34.99
Time Remaining: 6d 22h 26m
Buy It Now for only: $34.99
Lionel new 6 16946 Chesaapeake  Ohio F9 well car
Lionel new 6 16946 Chesaapeake Ohio F9 well car
$40.00
Time Remaining: 10d 18h 17m
Buy It Now for only: $40.00
LIONEL TRAINS 6 16983 PENNSYLVANIA RAIL ROAD F 9 WELL CAR WITH CABLE REELS
LIONEL TRAINS 6 16983 PENNSYLVANIA RAIL ROAD F 9 WELL CAR WITH CABLE REELS
$45.00
Time Remaining: 11d 19h 29m
Buy It Now for only: $45.00
Lionel O Gauge 3840 Chesapeake and Ohio F9 Well Car 6 16946 in Original Box
Lionel O Gauge 3840 Chesapeake and Ohio F9 Well Car 6 16946 in Original Box
$37.59
Time Remaining: 11d 20h 24m
Buy It Now for only: $37.59
Lionel Trains Penn Central F9 Well Car 6 36094 Six Wheel Die cast Trucks O Gauge
Lionel Trains Penn Central F9 Well Car 6 36094 Six Wheel Die cast Trucks O Gauge
$54.95
Time Remaining: 11d 21h 11m
Buy It Now for only: $54.95
Lionel Pennsylvania 6983 F9 Well Car 6 16983 NIB
Lionel Pennsylvania 6983 F9 Well Car 6 16983 NIB
$39.99
Time Remaining: 14d 16h 45m
Buy It Now for only: $39.99
O Gauge Lionel 6 16983 Pensylvania RR F 9 Well car 6983 1997
O Gauge Lionel 6 16983 Pensylvania RR F 9 Well car 6983 1997
$37.95
Time Remaining: 18d 2h 51m
Buy It Now for only: $37.95
LIONEL 16318 LL FLATCAR 16929 BC GONDOLA  16946 CO F9 WELL CAR ALL W REELS
LIONEL 16318 LL FLATCAR 16929 BC GONDOLA 16946 CO F9 WELL CAR ALL W REELS
$94.00
Time Remaining: 20d 22h 36m
Buy It Now for only: $94.00
Lionel 6 16983 Pennsylvania Railroad F9 Well Flat Car w cable reel load rd 6983
Lionel 6 16983 Pennsylvania Railroad F9 Well Flat Car w cable reel load rd 6983
$49.95
Time Remaining: 23d 3h 49m
Buy It Now for only: $49.95

Other O Scale train items recently purchased through this site:

O Scale 2 Rail EMD F 9A Powered Kit F9001 PD
Vintage PEMCO PRR Engine HO f 9 Diesel
Lionel O Gauge 3840 Chesapeake and Ohio F9 Well Car 6 16946 in Original Box
Lionel new 6 16946 Chesaapeake Ohio F9 well car
LIONEL Pensylvania RR F9 Well Car 6 16983 w Cable Reels Made in USA BRAND NEW
O Atlas Early ATSF F 9 Diesel F P OB 2 Rail C 7 1970s
Lionel New 6 16983 Pennsylvania RR F9 well car
Lionel Pennsylvania 6983 F9 Well Car 6 16983 NIB
Lionel 6 16983 Pennsylvania Railroad F9 Well Flat Car w cable reel load rd 6983
Lionel 6983 Pennsylvania Rail Road F9 Well Car W Cable Reels 6 16983 1997 C 9
Lionel 16946 New C O F9 Well Car 3840
Lionel Trains Penn Central F9 Well Car 6 36094 Six Wheel Die cast Trucks O Gauge
LIONEL 16318 LL FLATCAR 16929 BC GONDOLA 16946 CO F9 WELL CAR ALL W REELS
LIONEL TRAINS 6 16983 PENNSYLVANIA RAIL ROAD F 9 WELL CAR WITH CABLE REELS
O Gauge Lionel 6 16983 Pensylvania RR F 9 Well car 6983 1997