Pro Instructions - 1 Cylinder Switchless Lego Pneumatic Engine 2500 RP – Green Gecko Workshop
BrickLink - Part x189c01 : LEGO Pneumatic Cylinder with 2 Inlets Small (32mm) [Pneumatic] - BrickLink Reference Catalog
LEGO Small Two Way Pneumatic Cylinder (10554 / 74981) | Brick Owl - LEGO Marketplace
How to Make a Small High RPM 1 Cylinder Lego Pneumatic Engine - 3000 RPM! - Smallest in the World!? - YouTube
LEGO® 21828c01 6099775 - ToyPro
Build 19 Piece Pneumatic Kits with Technik Parts Contains Air Pump, Piston Pressure Rod, Cylinder,Pneumatic Hose &More,Great for DIY, MOC Tech, Compatible with Lego
LEGO Red Technic Pneumatic Cylinder Old 48mm with Black Piston (4 Studs Long) | Brick Owl - LEGO Marketplace
LEGO Technic 4 pcs NEW YELLOW MINI PNEUMATIC PISTON CYLINDERS Air pressure Pump pack lot set
Modified Pneumatic Cylinder - Medium Stud End - Old Style – Green Gecko Workshop
Goshfun 32Pcs 10-Kinds MOC Pneumatic Parts Bricks with Air Pump Push Rod Switch Piston Air Pipe, DIY Small Particle Stem Building Blocks Toy Set Compatible with Lego, Random Color of Air Pipe
LEGO part 47224c01 - Yellow Pneumatic Cylinder with 2 Inlets and Rounded End Medium (48mm) at BrickScout