Pneumatic Hose Connector with Axle Connector
99021
Pneumatics
Appears in 260 official sets
Catalog rarity
Common
Used in 260 official sets — a staple element in many builds. Available in 5 catalog colors.
Based on official set inventories in our catalog — not market price or production volume.
Best sets to source this part
Smallest official sets that include this element — useful when you only need one piece, not the whole theme.
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View set →Ekimu Falcon601602-1 · 2016 · 29 parts · Dark Bluish Gray
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View set →The Batman Movie Accessory Set853651-1 · 2017 · 31 parts · Dark Bluish Gray
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View set →Accessory Pack5004930-1 · 2017 · 39 parts · Dark Bluish Gray
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View set →Viking Ship11978-1 · 2023 · 48 parts · Dark Brown
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View set →Electric Scooters & Charging Dock40526-1 · 2022 · 50 parts · Dark Bluish Gray
Pneumatic Hose Connector with Axle Connector (part 99021) is a Pneumatics used in 260 official LEGO sets. Scan or search to authenticate loose parts and check market value. Open the parent-set list to see which themes and years used this mold — essential when a common shape appears in a rare color or print.
- → Category: Pneumatics
- → Appears in 260 official sets
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Market value
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Color variants
Sets containing this part
No sets found in catalog.