6991-1

Monorail Transport Base

Set number: 6991-1
Year: 1994
Theme: Unitron
Parts: 573
Minifigures: 4

Building instructions

The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.

View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)

Minifigures

fig-006950Spyrius Droid / Major Kartofski1×4 parts
fig-006952Unitron2×6 parts
fig-006953Unitron Chief1×6 parts

Parts list – 6991-1 Monorail Transport Base

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174 lines, 551 pieces

Parts list of set 6991-1
Part	Name	Colour	Quantity
2569	Antenna 8H WhipBars, Ladders and Fences	Trans-Neon Green	9×
298c02	Lever Small Base with Black LeverBars, Ladders and Fences	Light Gray	2×
3857	Baseplate 16 x 32Baseplates	Black	2×
2552pr0002	Baseplate Raised 32 x 32 with Ramp and Pit, Crater PrintBaseplates	Black	1×
2453a	Brick 1 x 1 x 5 with Blocked Open or Hollow StudBricks	Black	2×
6111	Brick 1 x 10Bricks	Black	2×
6111	Brick 1 x 10Bricks	Light Gray	2×
2465	Brick 1 x 16Bricks	Black	3×
2465	Brick 1 x 16Bricks	Light Gray	6×
3004	Brick 1 x 2Bricks	Black	3×
3004	Brick 1 x 2Bricks	Light Gray	10×
3010	Brick 1 x 4Bricks	Light Gray	2×
3009	Brick 1 x 6Bricks	Black	2×
3008	Brick 1 x 8Bricks	Black	3×
3008	Brick 1 x 8Bricks	Light Gray	4×
3003	Brick 2 x 2Bricks	Black	2×
3003	Brick 2 x 2Bricks	Light Gray	2×
2357	Brick 2 x 2 CornerBricks	Light Gray	2×
3002	Brick 2 x 3Bricks	Black	2×
3002	Brick 2 x 3Bricks	Light Gray	2×
3001	Brick 2 x 4Bricks	Black	1×
3001	Brick 2 x 4Bricks	Light Gray	2×
3007	Brick 2 x 8Bricks	Light Gray	1×
3941	Brick Round 2 x 2 with Axle HoleBricks Round and Cones	Black	2×
4589	Cone 1 x 1 [No Top Groove]Bricks Round and Cones	Trans-Neon Green	2×
3942c	Cone 2 x 2 x 2, Open StudBricks Round and Cones	Light Gray	2×
3943b	Cone 4 x 4 x 2, Axle Hole [Plain]Bricks Round and Cones	Black	1×
3300	Brick Sloped 33° 2 x 2 DoubleBricks Sloped	Blue	3×
4286	Brick Sloped 33° 3 x 1Bricks Sloped	Light Gray	1×
3298	Brick Sloped 33° 3 x 2Bricks Sloped	Black	2×
3298	Brick Sloped 33° 3 x 2Bricks Sloped	Light Gray	3×
3297	Brick Sloped 33° 3 x 4Bricks Sloped	Light Gray	2×
3040b	Brick Sloped 45° 2 x 1 with Bottom PinBricks Sloped	Black	2×
3040b	Brick Sloped 45° 2 x 1 with Bottom PinBricks Sloped	Light Gray	4×
3039	Brick Sloped 45° 2 x 2Bricks Sloped	Black	5×
3039	Brick Sloped 45° 2 x 2Bricks Sloped	Light Gray	2×
3039pr9973	Brick Sloped 45° 2 x 2 with Horizon Screen PrintBricks Sloped	Black	4×
3039pr9968	Brick Sloped 45° 2 x 2 with Spyrius Droid Image PrintBricks Sloped	Black	1×
3747a	Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom PinBricks Sloped	Black	1×
3660	Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]Bricks Sloped	Light Gray	1×
6087	Bracket 5 x 2 x 2 1/3 with Holes, Smooth BottomBricks Special	Black	1×
6061	Brick 2 x 4 x 2 with Holes on SidesBricks Special	Black	1×
4733	Brick Special 1 x 1 Studs on 4 SidesBricks Special	Light Gray	2×
4070	Brick Special 1 x 1 with HeadlightBricks Special	Black	4×
4730	Brick Special 2 x 2 with Pin and No Axle HoleBricks Special	Light Gray	1×
6153a	Brick Wedged, Sloped 6 x 4 Cutout, No Stud NotchesBricks Wedged	Light Gray	2×
4760c01	Battery Box, 9V Small [Complete Assembly]Electronics	Black	1×
4771	Light Brick 1 x 4 [Two Bulbs]Electronics	Black	1×
2684c01b	Motor, Monorail 9V with Long Couplings [Complete Assembly]Electronics	White	1×
5306bc015	Wire with Brick 2 x 2 x 2/3 Pair, 15LElectronics	Black	1×
2923	Hinge Bar 2.5L with 2 and 3 Fingers on Ends (Pantograph Shoe Holder)Hinges, Arms and Turntables	Black	2×
4276b	Hinge Plate 1 x 2 with 2 Fingers and Hollow StudsHinges, Arms and Turntables	Black	2×
2452	Hinge Plate 1 x 2 with 3 Fingers On SideHinges, Arms and Turntables	Black	2×
4275b	Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs]Hinges, Arms and Turntables	Blue	2×
4315	Hinge Vehicle Roof Holder 1 x 4Hinges, Arms and Turntables	Black	2×
3403c01	Turntable 4 x 4 Square Base with Top, Complete AssemblyHinges, Arms and Turntables	Black	2×
3959	Weapon Gun / Torch (Space) [with Grooves]Minifig Shields, Weapons, & Tools	Black	2×
3959	Weapon Gun / Torch (Space) [with Grooves]Minifig Shields, Weapons, & Tools	Light Gray	2×
2362a	Panel 1 x 2 x 3 - Solid StudsPanels	Black	4×
2408	Panel 10 x 6 x 11Panels	Trans-Dark Blue	2×
2466	Panel 3 x 2 x 6Panels	Trans-Dark Blue	7×
3024	Plate 1 x 1Plates	Black	2×
4477	Plate 1 x 10Plates	Black	3×
3023	Plate 1 x 2Plates	Black	18×
3023	Plate 1 x 2Plates	Blue	20×
3023	Plate 1 x 2Plates	Light Gray	8×
3623	Plate 1 x 3Plates	Black	6×
3623	Plate 1 x 3Plates	Blue	4×
3710	Plate 1 x 4Plates	Black	38×
3710	Plate 1 x 4Plates	Light Gray	3×
3666	Plate 1 x 6Plates	Black	4×
3460	Plate 1 x 8Plates	Black	4×
3460	Plate 1 x 8Plates	Blue	4×
3832	Plate 2 x 10Plates	Light Gray	1×
2445	Plate 2 x 12Plates	Light Gray	2×
4282	Plate 2 x 16Plates	Black	2×
3022	Plate 2 x 2Plates	Black	10×
3022	Plate 2 x 2Plates	Blue	2×
3022	Plate 2 x 2Plates	Light Gray	4×
2420	Plate 2 x 2 CornerPlates	Black	2×
3020	Plate 2 x 4Plates	Black	3×
3020	Plate 2 x 4Plates	Light Gray	1×
3795	Plate 2 x 6Plates	Black	2×
3034	Plate 2 x 8Plates	Black	2×
3030	Plate 4 x 10Plates	Black	1×
3032	Plate 4 x 6Plates	Black	1×
3032	Plate 4 x 6Plates	Light Gray	1×
3035	Plate 4 x 8Plates	Black	3×
3027	Plate 6 x 16Plates	Black	1×
4740	Dish 2 x 2 Inverted [Radar]Plates Round Curved and Dishes	Trans-Dark Blue	3×
4740	Dish 2 x 2 Inverted [Radar]Plates Round Curved and Dishes	Trans-Neon Green	5×
3960	Dish 4 x 4 Inverted [Radar]Plates Round Curved and Dishes	Trans-Dark Blue	4×
4285a	Dish 6 x 6 Inverted, Radar / Webbed [No Anti-studs]Plates Round Curved and Dishes	Black	1×
6141	Plate Round 1 x 1 with Solid StudPlates Round Curved and Dishes	Trans-Neon Green	8×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	Blue	2×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	Light Gray	7×
2654	Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Plates Round Curved and Dishes	Light Gray	3×
2436	Bracket 1 x 2 - 1 x 4 [Square Corners]Plates Special	Black	1×
3956	Bracket 2 x 2 - 2 x 2Plates Special	Black	2×
6019	Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]Plates Special	Black	3×
6019	Plate Special 1 x 1 with Clip Horizontal [Thick U Clip]Plates Special	Blue	4×
4081b	Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]Plates Special	Black	2×
4081b	Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]Plates Special	Light Gray	2×
4085c	Plate Special 1 x 1 with Clip Vertical [Thick U Clip]Plates Special	Black	1×
2540	Plate Special 1 x 2 Side Handle [Free Ends]Plates Special	Light Gray	2×
3794a	Plate Special 1 x 2 with 1 Stud without Groove (Jumper)Plates Special	Black	1×
3794a	Plate Special 1 x 2 with 1 Stud without Groove (Jumper)Plates Special	Light Gray	6×
3839b	Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment]Plates Special	Black	1×
3839b	Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment]Plates Special	Blue	1×
4596	Plate Special 1 x 2 with Long Stud Receptacle (Space Wing)Plates Special	Light Gray	2×
4590	Plate Special 1 x 4 Offset with Bar HolesPlates Special	Black	3×
2444	Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]Plates Special	Black	5×
2444	Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs]Plates Special	Light Gray	2×
3176	Plate Special 3 x 2 with Rounded End, HolePlates Special	Light Gray	1×
4151a	Plate Special 8 x 8 with Grille [No Hole in Center]Plates Special	Black	4×
3738	Technic Plate 2 x 8 [7 Holes]Plates Special	Black	2×
4859	Wedge Plate 3 x 4 without Stud NotchesPlates Wedged	Black	1×
2419	Wedge Plate 3 x 6 Cut CornersPlates Wedged	Black	4×
6104	Wedge Plate 8 x 8 with 3 x 4 CutoutPlates Wedged	Black	2×
6082	Rock Panel Rectangular 4 x 10 x 6Rock	Dark Gray	1×
6083	Rock Panel Triangular 3 x 8 x 7Rock	Dark Gray	1×
168285	Sticker Sheet for Set 6991-1Stickers	[No Color/Any Color]	1×
4476b	Support 2 x 4 x 5 Stanchion Inclined [5mm Wide Posts]Supports, Girders and Cranes	Light Gray	6×
2680	Support 4 x 4 x 5 Stanchion, Tall StudsSupports, Girders and Cranes	Black	2×
2681	Support 6 x 6 x 10 StanchionSupports, Girders and Cranes	Black	23×
3940b	Support Round 2 x 2 x 2 Stand with Reach-Through Center HoleSupports, Girders and Cranes	Black	4×
3737	Technic Axle 10Technic Axles	Black	2×
6541	Technic Brick 1 x 1 with Pin HoleTechnic Bricks	Black	2×
2744	Technic Slope Long 1 x 6 with 3 Pin HolesTechnic Bricks	Black	2×
2744	Technic Slope Long 1 x 6 with 3 Pin HolesTechnic Bricks	Light Gray	2×
3713	Technic BushTechnic Bushes	Light Gray	3×
4265b	Technic Bush 1/2 Toothed Type II [X Opening]Technic Bushes	Light Gray	1×
2780	Technic Pin with Friction Ridges Lengthwise and Center SlotsTechnic Pins	Black	2×
3673	Technic Pin without Friction Ridges LengthwiseTechnic Pins	Light Gray	4×
9244	Technic Universal Joint 4L [Complete Assembly]Technic Steering, Suspension and Engine	Light Gray	1×
3069bpr9981	Tile 1 x 2 with Arrow Long Yellow with Black Border PrintTiles	Black	3×
3069bpr0038	Tile 1 x 2 with Arrow Short Yellow without Black Border PrintTiles	Black	2×
3069bpr0025	Tile 1 x 2 with Digital Clock Print - '12:01' or '10:21'Tiles	White	1×
2431	Tile 1 x 4 with GrooveTiles	Black	2×
2431	Tile 1 x 4 with GrooveTiles	Light Gray	4×
4162	Tile 1 x 8 with GrooveTiles	Black	4×
4162	Tile 1 x 8 with GrooveTiles	Blue	4×
4162	Tile 1 x 8 with GrooveTiles	Light Gray	6×
3068b	Tile 2 x 2 with GrooveTiles	Black	3×
3068bpr0021	Tile 2 x 2 with Yellow Arrow without Border PrintTiles	Black	2×
4150	Tile Round 2 x 2 with Bottom CrossTiles Round and Curved	Black	1×
2555	Tile Special 1 x 1 with Clip and Straight TipsTiles Special	Black	1×
2412b	Tile Special 1 x 2 Grille with Bottom GrooveTiles Special	Black	6×
2412b	Tile Special 1 x 2 Grille with Bottom GrooveTiles Special	Blue	1×
2412b	Tile Special 1 x 2 Grille with Bottom GrooveTiles Special	Light Gray	16×
3829c01	Steering Stand 1 x 2 with Black Steering WheelTransportation - Land	Light Gray	1×
2687	Vehicle Base, Monorail 4 x 20Transportation - Land	Black	2×
2672	Vehicle Track, Monorail Curve LongTransportation - Land	Light Gray	4×
2892	Vehicle Track, Monorail Curve Short LeftTransportation - Land	Light Gray	1×
2891	Vehicle Track, Monorail Curve Short RightTransportation - Land	Light Gray	1×
2774	Vehicle Track, Monorail MonoswitchTransportation - Land	Light Gray	2×
2886c01	Vehicle Track, Monorail Point LeftTransportation - Land	Light Gray	1×
2881c01	Vehicle Track, Monorail Point RightTransportation - Land	Light Gray	1×
2677	Vehicle Track, Monorail Ramp Lower PartTransportation - Land	Light Gray	2×
2670	Vehicle Track, Monorail Straight ShortTransportation - Land	Light Gray	5×
2678	Vehicle Track, Monorail Track Ramp Upper PartTransportation - Land	Light Gray	2×
2671	Vehicle Track, Monorail Track Straight LongTransportation - Land	Light Gray	1×
2686c01	Wheel Holder, Monorail Bogey with Bogey Bracket/PivotTransportation - Land	Black	2×
3963	Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning RocketsTransportation - Sea and Air	Black	2×
3963	Brick Special 1 x 1 with 3 Speakers / Loudspeakers / Space Positioning RocketsTransportation - Sea and Air	Blue	2×
3475b	Engine - Smooth, Small 1 x 2 Side Plate [With Axle Holders]Transportation - Sea and Air	Blue	6×
4229	Engine, Strakes, 2 x 2 Thin Top PlateTransportation - Sea and Air	Black	1×
3479	Tail 4 x 2 x 2Transportation - Sea and Air	Light Gray	2×
2340	Wing, Tail 4 x 1 x 3Transportation - Sea and Air	Light Gray	4×
73590c01a	Flexible Hose 8.5L with Tabless Ends (Ends Same Color as Tube)Tubes and Hoses	Light Gray	2×
3634	Tyre 43 x 11, 17 mm Inside DiameterWheels and Tyres	Black	1×
2515	Wheel Hard Plastic Large (54mm D. x 30mm)Wheels and Tyres	Black	4×
3482	Wheel with Split Axle HoleWheels and Tyres	Black	1×
2507	Windscreen 10 x 4 x 2 1/3 CanopyWindscreens and Fuselage	Trans-Dark Blue	2×