Cummins

<h2>Cummins Diesel Mockup Engines for Engine Swaps</h2><p>Take the complexity out of your diesel conversion with a Cummins mockup engine. Ideal for truck builders and swap specialists, our lightweight replicas of the legendary <strong>5.9L 12V/24V</strong> and modern <strong>6.7L</strong> engines make test-fitting a breeze. Verify firewall clearance, plan your turbo setup, and position mounts with a block you can lift by hand.</p><p>Our Cummins replicas are the industry standard for ensuring a smooth, accurate, and professional diesel engine swap. Get your project started on the right foot.</p>