← The LEGO Parts Guide › Basic › Other

2×4 Keychain (Part 49757)

2001-2023CURRENT

Custom LEGO part image © 2025 Tom Alphin / Brick Architect.

This part number is not widely used outside of Rebrickable.

External Links

LEGO parts are described differently on other websites and may use different part numbers.

LEGO Pick a Brick:
49757 Part name not found for LEGO Pick a Brick.
Bricklink:
49757 Part not found on BrickLink.
Rebrickable:
49757 Key Chain, Chrome Chain and Ring with 2 x 4 Brick
Brickset:
49757 Part not found on Brickset.
LDraw:
49757 Keychain with 2 x 4 Brick
 CURRENTALL YEARS
OVERALL RANK
-604
2479
1843
# PIECES
3(RANK: 2668)
30(RANK: 2914)
# SETS
3(RANK: 2497)
29(RANK: 2200)
# COLORS
3(RANK: 1690)
22(RANK: 321)

Ranking based on buying one copy of every LEGO set, counting the number of sets containing each part, then sorting by part and color.

Overall Rank is a weighted score combining the number of parts, sets, and colors produced.

Current ranking based on sets released between 2021-2025.

Printable LEGO Brick Label

Requires a compatible Brother Label Printer — learn more at brickarchitect.com/labels.

2×4
Keychain
49757
.LBX

New Label! Not included in legacy LEGO Brick Labels collection.

2×4
Keychain
49757
.LBX

Small QR codes are hard to scan with some devices.

Date Added: 2025-08-16 01:29:29
Date Modified: 2025-09-14 23:39:52

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This guide uses external data from Rebrickable, BrickLink, Brickset, and LDraw.