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Expert Builder/Gear Parts

Expert Builder/Gear Parts

871-1·LEGO·1977·22 parts

Used Avg
$33.59
New Avg
$95.02
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About Expert Builder/Gear Parts

Expert Builder/Gear Parts (871-1) is a LEGO LEGO set from 1977 valued at $33.59 on BrickLink. It contains 22 cataloged parts. This set has been retired and is only available on the secondary market.

Seller notes

  • Sealed copies sell for $95.02 vs $33.59 used — a 183% premium. If you have this set new in sealed box (NISB), price it accordingly.

Parts (22)

Technic, Gear 8 Tooth
Technic, Gear 8 Tooth
×4
Technic, Gear 40 Tooth
Technic, Gear 40 Tooth
Technic, Gear 24 Tooth Crown - Not Reinforced
Technic, Gear 24 Tooth Crown - Not Reinforced
×2
Technic, Axle and Pin Connector
Technic, Axle and Pin Connector
×6
Technic Engine Piston Square 2 x 2
Technic Engine Piston Square 2 x 2
×2
Technic, Pin without Friction Ridges
Technic, Pin without Friction Ridges
×17
Technic, Brick 1 x 2 with Hole
Technic, Brick 1 x 2 with Hole
×6
Technic, Brick 1 x 4 with Holes
Technic, Brick 1 x 4 with Holes
×4
Technic, Brick 1 x 8 with Holes
Technic, Brick 1 x 8 with Holes
×4
Technic, Brick 1 x 16 with Holes
Technic, Brick 1 x 16 with Holes
×4
Technic, Axle  2L
Technic, Axle 2L
×2
Technic, Axle  4L
Technic, Axle 4L
×2
Technic, Axle  6L
Technic, Axle 6L
×2
Technic, Axle  8L
Technic, Axle 8L
×2
Technic, Axle 12L
Technic, Axle 12L
Technic, Plate 2 x 4 with 3 Holes
Technic, Plate 2 x 4 with 3 Holes
×2
Technic Bush
Technic Bush
×12
Technic, Axle 10L
Technic, Axle 10L
Technic, Plate 2 x 8 with 7 Holes
Technic, Plate 2 x 8 with 7 Holes
×2
Technic, Gear Rack 1 x 4
Technic, Gear Rack 1 x 4
×2
Technic, Universal Joint 4L
Technic, Universal Joint 4L
Technic, Gear 24 Tooth with 3 Axle Holes
Technic, Gear 24 Tooth with 3 Axle Holes
×4

Common questions about Expert Builder/Gear Parts

How much is LEGO Expert Builder/Gear Parts (871-1) worth?

Expert Builder/Gear Parts sells for an average of $33.59 used and $95.02 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.

Is LEGO Expert Builder/Gear Parts (871-1) retired?

Yes, Expert Builder/Gear Parts was released in 1977 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.

How do I check if my Expert Builder/Gear Parts set is complete?

Use the parts list on this page to check every piece. 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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