REQUIRED For Replacement labeled Engines, Long Blocks, and short blocks sold within the U.S. and U.S. Territories the engine core (i.e. old engine) that is removed MUST be returned to your selling Caterpillar dealer, so that they can return to Caterpillar OR destroy, as required by law. Proof of return or destruction will then be provided to the EPA and or California ARB if required. See PELJ1301 for additional details. BENEFITS:• Lower cost by reusing workable components from original engine• Reduced downtime• Superior quality & reliability• Quick turnarounds for maintaining productivityStandard 12-month WarrantyAn Engine Short Cylinder Block houses the engine cylinders where combustion occurs and supports the crankshaft that converts piston movement into rotational force and provides the mounting base for pistons, connecting rods, and crankshaft assemblies, enabling controlled power generation. Maintaining accurate cylinder alignment ensures proper piston travel and compression control.Attributes:• Maintains structural alignment between rotating engine components.• Reduces vibration by stabilizing internal moving assemblies.• Supports installation of cylinder head and related sealing components.Applications: An Engine Short Cylinder Block is located at the base of the engine assembly, forming the central structure that houses cylinders and supports crankshaft operation for controlled combustion and power generation.