Bulldozer (856-1) is a Expert Builder LEGO set released in 1979 with 367 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Expert Builder sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 51 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1979 (47 years ago — may be retired)
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Catalog scale
367 parts listed · 51 inventory lines tracked
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Minifigures
No minifigs in inventory (brick-only or Technic set)
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~717 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
No estimate on BrickID yet
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Parts in this set
51 parts · page 1 of 2 · updating…
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Brick 1 x 23004 · ×4 · Yellow -
Brick 1 x 43010 · ×6 · Yellow -
Brick 1 x 63009 · ×4 · Yellow -
Brick 1 x 83008 · ×4 · Yellow -
Brick 2 x 2 without Inside Ridges3003a · ×3 · Yellow -
Brick Round 1 x 1 Solid Stud3062a · ×3 · Black -
Brick Round 1 x 1 Solid Stud3062a · ×1 · Trans-Red -
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×3 · Yellow -
Panel, Trapezoid, Tipper End Flat with Pins, 1 x 2 Anti-studs3145 · ×2 · Yellow -
Plate 1 x 13024 · ×2 · Trans-Red -
Plate 1 x 23023 · ×2 · Light Gray -
Plate 1 x 23023 · ×2 · Yellow -
Plate 1 x 23023 · ×7 · Black -
Plate 1 x 23023 · ×2 · Trans-Clear -
Plate 1 x 43710 · ×4 · Light Gray -
Plate 1 x 43710 · ×8 · Yellow -
Plate 1 x 83460 · ×5 · Yellow -
Plate 2 x 23022 · ×3 · Yellow -
Plate 2 x 33021 · ×1 · Yellow -
Plate 2 x 43020 · ×4 · Yellow -
Plate 2 x 63795 · ×4 · Yellow -
Plate 2 x 83034 · ×1 · Yellow -
Plate 4 x 103030 · ×2 · Yellow -
Plate 4 x 123029 · ×2 · Yellow -
Plate 4 x 63032 · ×2 · Yellow -
Plate 6 x 103033 · ×2 · Yellow -
Rubber Band Small 13mm (Square Cross Section)71509 · ×2 · Black -
Technic Axle 103737 · ×1 · Black -
Technic Axle 123708 · ×2 · Black -
Technic Axle 43705 · ×10 · Black -
Technic Axle 63706 · ×5 · Black -
Technic Axle 83707 · ×4 · Black -
Technic Axle and Pin Connector3651 · ×22 · Light Gray -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×4 · Light Gray -
Technic Brick 1 x 12 [11 Pin Holes]3895 · ×2 · Yellow -
Technic Brick 1 x 16 [15 Pin Holes]3703 · ×6 · Yellow -
Technic Brick 1 x 2 [1 Pin Hole]3700 · ×10 · Yellow -
Technic Brick 1 x 4 [3 Pin Holes]3701 · ×4 · Yellow -
Technic Brick 1 x 6 [5 Pin Holes]3894 · ×8 · Yellow -
Technic Brick 1 x 8 [7 Pin Holes]3702 · ×10 · Yellow -
Technic Bush3713 · ×11 · Light Gray -
Technic Gear 24 Tooth [Old Style - Three axle holes]3648a · ×3 · Light Gray -
Technic Gear 24 Tooth Crown with Flat Teeth3650a · ×2 · Light Gray -
Technic Gear 40 Tooth3649 · ×4 · Light Gray -
Technic Gear 8 Tooth3647 · ×7 · Light Gray -
Technic Gear Rack 1 x 43743 · ×6 · Light Gray -
Technic Link Tread3873 · ×100 · Black -
Technic Pin without Friction Ridges Lengthwise3673 · ×40 · Light Gray