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Steam Engine

Steam Engine

7750-1·Trains·1980·2 minifigs·90 parts

Used Avg
$735.34
New Avg
$7765.07
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About Steam Engine

Steam Engine (7750-1) is a LEGO Trains set released in 1980, currently averaging $735.34 used on BrickLink. It comes with 2 minifigures worth a combined $3.65. The set has retired from retail, so secondary market is the only option. The full parts inventory runs 90 pieces.

Part-out value

The minifigures make up only 0% of this set's value ($3.65 out of $735.34). The bulk of the value is in the parts or the set being complete. Sell it as a complete set if possible.

Seller notes

  • Sealed copies sell for $7765.07 vs $735.34 used — a 956% premium. If you have this set new in sealed box (NISB), price it accordingly.
  • This is a vintage set (1980). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.

Minifigures in Steam Engine (2)

Shirt with 6 Buttons - Blue, Blue Legs, Red Construction Helmet
Shirt with 6 Buttons - Blue, Blue Legs, Red Construction Helmet
but011$1.82
Shirt with 6 Buttons - Blue, Blue Legs, Red Hat
Shirt with 6 Buttons - Blue, Blue Legs, Red Hat
but020$1.83

Parts (90)

Electric, Light Brick 12V 2 x 2 with 2 Plug Holes, Trans-Clear Smooth Lens
Electric, Light Brick 12V 2 x 2 with 2 Plug Holes, Trans-Clear Smooth Lens
White×2
Window 1 x 1 x 2
Window 1 x 1 x 2
Black×4
Brick 2 x 4 without Cross Supports
Brick 2 x 4 without Cross Supports
Red×4
Brick 2 x 4 without Cross Supports
Brick 2 x 4 without Cross Supports
Black
Brick 2 x 2 without Inside Supports
Brick 2 x 2 without Inside Supports
Black
Brick 1 x 2
Brick 1 x 2
Black×14
Brick 1 x 1
Brick 1 x 1
Black×6
Brick 1 x 8
Brick 1 x 8
Red×2
Brick 1 x 8
Brick 1 x 8
Black×6
Brick 1 x 6
Brick 1 x 6
Black×8
Brick 1 x 4
Brick 1 x 4
Red×6
Brick 1 x 4
Brick 1 x 4
Black×4
Plate 2 x 4
Plate 2 x 4
Red×3
Plate 2 x 4
Plate 2 x 4
Black×2
Plate 2 x 3
Plate 2 x 3
Black×3
Plate 2 x 2
Plate 2 x 2
Red×4
Plate 2 x 2
Plate 2 x 2
Black×4
Plate 1 x 2
Plate 1 x 2
Red×2
Plate 1 x 2
Plate 1 x 2
Black×3
Plate 1 x 1
Plate 1 x 1
Black×2
Plate 4 x 4
Plate 4 x 4
Black×2
Plate 4 x 6
Plate 4 x 6
Black
Plate 2 x 8
Plate 2 x 8
Red×3
Plate 2 x 8
Plate 2 x 8
Black×4
Plate 4 x 8
Plate 4 x 8
Black
Plate 6 x 8
Plate 6 x 8
Red
Slope 45 2 x 4
Slope 45 2 x 4
Black×6
Slope 45 2 x 2
Slope 45 2 x 2
Black×5
Slope 45 2 x 1 without Bottom Tube
Slope 45 2 x 1 without Bottom Tube
Black×2
Brick, Round 1 x 1
Brick, Round 1 x 1
Red×2
Brick, Round 1 x 1
Brick, Round 1 x 1
Black
Brick, Round Corner 2 x 2 Macaroni with Stud Notch
Brick, Round Corner 2 x 2 Macaroni with Stud Notch
Red×2
Tile 2 x 2
Tile 2 x 2
Red×5
Tile 2 x 2
Tile 2 x 2
Black×3
Tile 1 x 2
Tile 1 x 2
Red×4
Brick, Modified 1 x 2 with Cable Holding Cutout
Brick, Modified 1 x 2 with Cable Holding Cutout
Black×2
Slope 33 3 x 4
Slope 33 3 x 4
Black×4
Brick 1 x 3
Brick 1 x 3
Red×2
Brick 1 x 3
Brick 1 x 3
Black×2
Plate 1 x 3
Plate 1 x 3
Black×4
Technic, Axle and Pin Connector
Technic, Axle and Pin Connector
Light Gray×2
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
Red×2
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
Black×2
Slope, Inverted 45 2 x 1
Slope, Inverted 45 2 x 1
Black×2
Plate 1 x 6
Plate 1 x 6
Red×3
Plate 1 x 6
Plate 1 x 6
Black×2
Technic, Pin without Friction Ridges
Technic, Pin without Friction Ridges
Light Gray×2
Technic, Brick 1 x 2 with Hole
Technic, Brick 1 x 2 with Hole
Black×9
Technic, Brick 1 x 4 with Holes
Technic, Brick 1 x 4 with Holes
Black×2
Technic, Axle 2L
Technic, Axle 2L
Black×2
Plate 1 x 4
Plate 1 x 4
Red×4
Plate 1 x 4
Plate 1 x 4
Black×3
Technic Bush
Technic Bush
Light Gray×2
Technic, Plate 2 x 8 with 7 Holes
Technic, Plate 2 x 8 with 7 Holes
Black×2
Plate, Modified 1 x 2 with 1 Stud without Groove (Jumper)
Plate, Modified 1 x 2 with 1 Stud without Groove (Jumper)
Black×2
Plate 2 x 6
Plate 2 x 6
Red×3
Plate 2 x 6
Plate 2 x 6
Black×4
Hinge Brick 1 x 4 Swivel Top
Hinge Brick 1 x 4 Swivel Top
Black
Hinge Brick 1 x 4 Swivel Base
Hinge Brick 1 x 4 Swivel Base
Black
Minifigure, Utensil Shovel / Spade - Handle with Round End
Minifigure, Utensil Shovel / Spade - Handle with Round End
Dark Gray×2
Plate, Modified 1 x 2 with Bar Handles - Round Ends, Mid Attachment
Plate, Modified 1 x 2 with Bar Handles - Round Ends, Mid Attachment
Black×2
Brick, Round 2 x 2 with Axle Hole
Brick, Round 2 x 2 with Axle Hole
Black×3
Plate 6 x 6
Plate 6 x 6
Black
Train Buffer Beam
Train Buffer Beam
Red×4
Train Coupling with Pin
Train Coupling with Pin
Black×4
Plate, Round 1 x 1, 2 on Sprue
Plate, Round 1 x 1, 2 on Sprue
Trans-Clear×2
Plate, Round 1 x 1, 2 on Sprue
Plate, Round 1 x 1, 2 on Sprue
Trans-Red×2
Plate, Round 1 x 1, 2 on Sprue
Plate, Round 1 x 1, 2 on Sprue
Trans-Yellow×2
Plate, Modified 1 x 1 with Open O Clip Thin (Vertical Grip)
Plate, Modified 1 x 1 with Open O Clip Thin (Vertical Grip)
Black×2
Train Bogie Plate (Tile, Modified 6 x 4 with 7mm Pin)
Train Bogie Plate (Tile, Modified 6 x 4 with 7mm Pin)
Red×2
Tile 1 x 8
Tile 1 x 8
Black×2
Electric, Train Light Prism 1 x 6 Holder
Electric, Train Light Prism 1 x 6 Holder
Black×2
Electric, Train Light Prism 1 x 3
Electric, Train Light Prism 1 x 3
Trans-Clear×4
Ladder 1 1/2 x 2 x 2
Ladder 1 1/2 x 2 x 2
Red×2
Ladder 1 1/2 x 2 x 2
Ladder 1 1/2 x 2 x 2
Black×6
Brick, Modified 2 x 4 with Red Wheels, Train Spoked Large (29mm D.) and Red Pins (4180 / wheel4 / 2344)
Brick, Modified 2 x 4 with Red Wheels, Train Spoked Large (29mm D.) and Red Pins (4180 / wheel4 / 2344)
Black×4
Door 1 x 4 x 5 Train Left, Thin Support at Bottom
Door 1 x 4 x 5 Train Left, Thin Support at Bottom
Black
Door 1 x 4 x 5 Train Right, Thin Support at Bottom
Door 1 x 4 x 5 Train Right, Thin Support at Bottom
Black
Glass for Train Door with Lip on Top and Bottom
Glass for Train Door with Lip on Top and Bottom
Trans-Clear×2
Window 1 x 2 x 2 with Fixed Trans-Clear Glass
Window 1 x 2 x 2 with Fixed Trans-Clear Glass
Black×2
Brick, Modified 2 x 6 x 2 Weight - Bottom Openings, Center Seam on Ends
Brick, Modified 2 x 6 x 2 Weight - Bottom Openings, Center Seam on Ends
Black×2
Magnet Cylindrical
Magnet Cylindrical
Black×4
Electric, Wire 12V / 4.5V with 2 Leads, 28 Studs (22cm) Long with 4 Light Gray Electric, Connector, 1-Way Male Squared
Electric, Wire 12V / 4.5V with 2 Leads, 28 Studs (22cm) Long with 4 Light Gray Electric, Connector, 1-Way Male Squared
Light Gray
Electric, Wire 12V / 4.5V with 2 Leads, 96 Studs Long with 4 Light Gray Electric, Connector, 1-Way Male Squared (x466c96 / 765c01)
Electric, Wire 12V / 4.5V with 2 Leads, 96 Studs Long with 4 Light Gray Electric, Connector, 1-Way Male Squared (x466c96 / 765c01)
Light Gray
Sticker Sheet for Set 7750 - (191925)
Sticker Sheet for Set 7750 - (191925)
(Not Applicable)
Train Wheel Middle for 12V Motor with Light Gray Train Rim (bb0012v2 / trainrim)
Train Wheel Middle for 12V Motor with Light Gray Train Rim (bb0012v2 / trainrim)
Red×2
Electric, Train Motor 12V with Wheels Type I with 2 Round Contact Holes with 4 Light Gray Train Rim for 4.5V & 12V Locomotive Wheels (bb0012va / trainrim)
Electric, Train Motor 12V with Wheels Type I with 2 Round Contact Holes with 4 Light Gray Train Rim for 4.5V & 12V Locomotive Wheels (bb0012va / trainrim)
Red
Train Rim for 4.5V & 12V Locomotive Wheels
Train Rim for 4.5V & 12V Locomotive Wheels
Light Gray×4
Plate, Modified 1 x 2 with Steam Engine Cylinder, Round Surfaces, Interior without Grooves
Plate, Modified 1 x 2 with Steam Engine Cylinder, Round Surfaces, Interior without Grooves
Black×2
Hose, Classic 4mm D. 12L / 9.6cm (flexible)
Hose, Classic 4mm D. 12L / 9.6cm (flexible)
Black×4

Common questions about Steam Engine

How much is LEGO Steam Engine (7750-1) worth?

Steam Engine sells for an average of $735.34 used and $7765.07 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

What minifigures come in LEGO set 7750-1?

This set includes 2 minifigures: Shirt with 6 Buttons - Blue, Blue Legs, Red Construction Helmet ($1.82), Shirt with 6 Buttons - Blue, Blue Legs, Red Hat ($1.83). The minifigures have a combined BrickLink value of $3.65. Each figure is linked above with individual pricing if you're looking to buy or sell specific characters.

Is it worth parting out LEGO Steam Engine?

The minifigures make up about 0% of the set value ($3.65 out of $735.34). Most of the value is in the complete set package, so selling it whole is likely the better move unless you have buyers lined up for specific figures.

Is LEGO Steam Engine (7750-1) retired?

Yes, Steam Engine was released in 1980 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms. At its current price point, it has appreciated since retirement.

How do I check if my Steam Engine set is complete?

Use the parts list on this page to check every piece and all 2 minifigures. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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