LEGO Pullback Motor 6 x 3 x 5 with 'V12' Sticker (12799) | Brick Owl - LEGO Marketplace
MOC-40128 V12 Engine with Gearbox | Medievalbrick.com
LEGO MOC V12 Engine with Gearbox (HORT Series 5) by Bricktec Designs | Rebrickable - Build with LEGO
WWEI Technik V12 Motor Building Blocks, with Transmission, 2 L Motor, Dynamic MOC Motor Toy, 788 Clamping Blocks Compatible with Lego Technic Cars : Amazon.de: Toys