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The LEGO Parts Guide
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Vehicle
Train
(14 parts)
Wheels, trucks, and train track.
Train
(14 parts)
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Scale
Label
Table
Part Name
(Part Number)
Overall
Rank
# Pieces
(Rank)
# Sets
(Rank)
# Colors
(Rank)
Years
Produced
Train Track, Straight
53401
2140
187
1295
30
2158
1
5514
2006-2025
20 years
Train Track, Curved
53400
2191
268
1071
19
2738
1
5503
2006-2022
17 years
16L Train Track
3228
923
665
648
91
1211
7
1544
1966-2024
59 years
Train Wheel w/ Metal Axle Hole
57878
1842
414
858
27
2282
1
5486
2006-2025
20 years
5L Train Axle, Metal
57051
2141
207
1229
27
2284
1
5511
2006-2025
20 years
Train Wheel w/ Wheel Pin Hole
50254
1083
577
709
84
1269
4
2603
1991-2025
35 years
Train Wheel w/ Pin
38340
2420
176
1339
11
3524
2
4032
2019-2025
7 years
RC Train Wheel w/ Axle Hole
57999
1777
193
1274
33
2058
3
3199
2006-2025
20 years
RC Train Wheel, Spoked, Axle & Pin
85489b
2617
70
2063
14
3152
3
3263
2009-2025
17 years
3×6 Train Wheel Holder (Bogie)
38339
3067
88
1865
11
3528
1
5578
2019-2025
7 years
4×6 Train Bogey Plate w/ Short Pin
4025
1365
225
1175
78
1315
4
2625
1980-2025
46 years
Train Motor Decorative Side
2871
1869
99
1764
42
1819
4
2675
1991-2025
35 years
Train Buffer w/ Plow, Magnet
64415
4236
18
3707
10
3726
1
5850
2006-2023
18 years
Train Buffer Beam, Magnet
29084
3423
54
2300
10
3677
1
5636
2018-2025
8 years