Train Accessories are accessories for LEGO trains, including tracks, motors, batteries, cables, and more. There has been a very large supply of them and nearly new ones come out each year. A new sub-theme, Power Functions was introduced in 2009.
Accessories[]
1960s[]
| Image | # | Set | Number of pieces | Minifigures | Price | Release |
|---|---|---|---|---|---|---|
 | 100 | Motor with Wheels and Wire | 16 | 1966 | ||
 | 101 | 4.5V Battery Case | 2 | 1966 | ||
 | 101 | 4.5V Battery Case. | 2 | 1969 | ||
 | 150 | Straight Track | 25 (1966-72) 28 (1973-76) | 1966 | ||
 | 151 | Curved Track | 25 (1966-74) 28 (1973-76) | 1966 | ||
 | 156 | 2 Rail Signals | 6 | 1968 | ||
 | 157 | Automatic Direction Changer | 7 | 1969 | ||
 | 160 | Magnetic Couplings | 6 | 1968 | ||
 | 703 | 12V Replacement Motor | 1 | 1969 | ||
 | 704 | 12V Sleeper (Track) Contacts | 2 | 1969 | ||
 | 750 | Straight Conductor Rails | 8 | 1969 | ||
 | 751 | Curved Conductor Rails | 8 | 1969 | ||
 | 753 | Automatic Right Electric Switch | 4 | 1969 | ||
 | 754 | Automatic Left Electric Switch | 4 | 1969 |
1970s[]
| Image | # | Set | Number of pieces | Minifigures | Price | Release |
|---|---|---|---|---|---|---|
 | 3 | Battery Box | 2 | 1977 | ||
 | 12 | Wheel Bearings for Locomotives | 2 | 1977 | ||
 | 13 | Train Motor Plate with Buffers | 5 | 1977 | ||
 | 14 | Train Motor Plate with Coupler | 1 | 1977 | ||
 | 19 | Locomotive Piston Assemblies | 6 | 1977 | ||
 | 104 | 4.5V Replacement Motor | 1 | 1970 | ||
 | 157 | Curved Rails with Sleepers | 25 | 1976 | ||
 | 159 | Straight Rails and Crossing | 25 | 1976 | ||
 | 705 | Motor Bushings | 4 | 1970 | ||
 | 706 | Rail Contact Wires | 1 | 1970 | ||
 | 708 | 2m Extension Cord for Points | 1 | 1970 | ||
 | 741 | 12V Transformer | 1 | 1974 | ||
 | 742 | 12V Transformer - for 100V Mains | 1 | 1970 | ||
 | 755 | Left and Right Points | 12 | None | 1974 | |
 | 756 | Electric Crossing | 5 | 1974 | ||
 | 1101 | Replacement 4.5V Motor | 1 | 1977 | ||
 | 1103 | Battery Box | 2 | 1977 | ||
| 1112 | Train Sliding Wheel Blocks | 2 | 1977 | ||
| 1113 | Motor Frame and Couplers | 5 | 1977 | ||
 | 1119 | Locomotive Piston Assemblies | 6 | 1977 |
1980s[]
1990s[]
| Image | # | Set | Number of pieces | Minifigures | Price | Release |
|---|---|---|---|---|---|---|
 | 4206 | 9V Train Switching Track Collection | 27 | $44.99 | 2006 | |
 | 4515 | Straight Rails | 8 | $13.25 | 1991 | |
 | 4520 | Curved Rails for 9V Trains | 8 | 1999 | ||
 | 4531 | Manual Points with Track | 6 | $28.00 | 1991 | |
 | 4548 | Transformer and Speed Regulator | 3 | $42.00 | 1992 | |
 | 5300 | Train Motor 9V | 3 | 1991 | ||
 | 5303 | Buffers, Magnets & Couplers | 6 | 0 | $2.99 | 1992 |
2000s[]
| Image | # | Set | Number of pieces | Minifigures | Price | Release |
|---|---|---|---|---|---|---|
 | 2159 | 9V Train Track Starter Collection | 24 | $29.99 | 2006 | |
| 4206 | 9V Train Switching Track Collection | 27 | $44.99 | 2006 | |
 | 7896 | Straight & Curved Rails | 16 | $15.99 / €16.99 | 2006 | |
 | 7996 | Train Rail Crossing for RC Trains | 4 | $24.99 / €19.99 | 2007 | |
 | 8866 | Train Motor | 7 | $10.99 / €12.99 | 2009 | |
 | 8867 | Flexible Train Track | 64 | $24.99 / €29.99 | 2009 | |
 | 8878 | Power Functions Rechargeable Battery Box | 1 | $49.99 | 2009 | |
 | 8879 | Power Functions IR Speed Remote Control | $12.99 / €14.49 | 2009 | ||
 | K8882 | LEGO Power Functions Train Accessories Pack | 6 | $9.99 | 2009 |