Large Locomotive (base unit without color trim elements) (3741): parts list and STL files

Set 3741, Large Locomotive (base unit without color trim elements), from 2001, has 91 pieces in 29 kinds of part and colour. Here is every part, with the ones you can 3D print at home and the ones to buy.

Get the free print files

Free: an STL file for every part you can print, the parts list and a BrickLink shopping list for the rest. Pro adds print-ready plates for a 256 mm bed and our printing guide. About ProYour Pro includes the print-ready plates.

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Large Locomotive (base unit without color trim elements), built (3D picture) — What it looks like built. A 3D picture, not a photo, made from the LDraw model by Robert Paciorek (CC BY 2.0).

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78to print

13to buy

0spares

29kinds

78 to print, 13 to buy, 0 spares. Print: plain bricks, plates and beams you can make on a home 3D printer. Buy: clear, printed, rubber, electric and very thin parts, which are better ordered. Spares are the extras in the box.

Every part in set 3741

Parts in set 3741, Large Locomotive (base unit without color trim elements)
Colour	Part	Qty	Print or buy
Black	32028 Plate Special 1 x 2 with Door Rail	16	Print
Light Gray	3795 Plate 2 x 6	8	Print
Black	3678a Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube	6	Print
Black	3010 Brick 1 x 4	5	Print
Black	2377 Window 1 x 2 x 2 Plane, Solid Studs	4	Print
Light Gray	3021 Plate 2 x 3	4	Print
Black	3455 Brick Arch 1 x 6	4	Print
Black	4070 Brick Special 1 x 1 with Headlight	4	Print
Black	6019 Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]	4	Print
Black	2449 Brick Sloped Inverted 75° 2 x 1 x 3	2	Print
Black	3001 Brick 2 x 4	2	Print
Black	3020 Plate 2 x 4	2	Print
Light Gray	3031 Plate 4 x 4	2	Print
Black	30367b Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder	2	Print
Black	3040b Brick Sloped 45° 2 x 1 with Bottom Pin	2	Print
Light Gray	3832 Plate 2 x 10	2	Print
Black	4095 Bar 6.6L with Stop Ring [Umbrella Stand]	2	Print
Black	4865a Panel 1 x 2 x 1 [Square Corners]	2	Print
Black	2431 Tile 1 x 4 with Groove	1	Print
Black	3009 Brick 1 x 6	1	Print
Black	3023 Plate 1 x 2	1	Print
Yellow	4589 Cone 1 x 1 [No Top Groove]	1	Print
Black	4623 Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]	1	Print
Black	2878c01 Wheel Holder, Train with Wheels [Complete Assembly]	4	Buy
Black	2920 Train Coupling New	2	Buy
Black	4022 Train Buffer Beam	2	Buy
Black	4025 Tile Special 6 x 4 with Beveled Edges and 5mm Pin (Train Bogie Plate)	2	Buy
Black	73092 Magnet Cylindrical	2	Buy
Black	6584 Vehicle Base, Train 6 x 24 with Two 1 x 2 Cutouts and 3 Round Holes Each End	1	Buy

Print set 3741 at home

The set tool makes an STL file for each of the 78 printable pieces, sorted by colour, plus a shopping list for the 13 to buy. Free, no account, and it runs on your own phone or computer.

Get the free print files

Pro adds print-ready plates for a 256 mm bed. About Pro

Parts data: Rebrickable, and it can differ slightly from your box. Part shapes: LDraw Parts Library (CC BY 4.0). Browse all sets. Independent project, not sponsored, authorised or endorsed by any brick company.