The Internal Engine category is your premier destination for high-quality parts specifically designed for Allis Chalmers machinery. Whether you're restoring a vintage tractor or maintaining a trusted workhorse, our range includes complete engine kits, essential components, and precision gauges to ensure your engine operates at peak performance. Explore our selection of Complete Engine Kits that seamlessly fit models such as B, C, CA, D10, D12, D14, D15, W, WC, WD, WF, and WD45. Each kit is meticulously crafted to provide everything you need for a comprehensive rebuild, delivering durability and reliability for your engine’s longevity.Enhance your engine's functionality with our specialized parts like the Allis Chalmers Oil Pressure Gauges (70228718 & 70207834) and Timing Gear (70230217), designed for accuracy in monitoring performance. We also offer essential maintenance items such as the Allis Chalmers Sleeve Kit for B125 Gas Engines and the Cam Bearing Kit (70209130), ensuring that you have the best components for operational excellence.For those focused on gasket integrity, our Head Gasket Set—suitable for B, 1B, B125, B15, C, and CA models (70224768)—is crucial for preventing leaks and maintaining optimal compression. Invest in your Allis Chalmers equipment with confidence, knowing that our internal engine parts are built to endure the rigors of both farm and industrial applications. Browse our collection today and give your engine the quality it deserves, ensuring smooth operation and extended life for your machinery.