LEGO 6 Yellow Technic Engine Pistons with Connecting Rods NEW 42043 | eBay
Amazon.com: ZOSTER Technic Crankshaft Accessories Kit Engine Connecting Rod Parts Individual Mechanical Technology Educational Parts Compatible with Lego Technic (67 Pieces) Random Color 517114QY20LURWYN : Toys & Games
LEGO IDEAS - Large Technic Engine Cylinder
LEGO MOC Piston Engine V6 by AKM-Sky | Rebrickable - Build with LEGO