The RE61467 piston with pin is specifically designed to fit various models of John Deere tractors, including the 3100, 5105, 5200, 5205, 5210, and 5220. Here are some key points about this piston: Compatibility: The RE61467 piston with pin is engineered to fit specific models of John Deere tractors mentioned above. It is essential to ensure compatibility with the tractor model before installation. Function: The piston is a crucial component of the engines combustion chamber. It moves up and down within the cylinder bore, compressing the air-fuel mixture and transferring energy to the crankshaft through the connecting rod. Construction: The piston is typically made of high-strength aluminum alloy or cast iron to withstand high temperatures and pressures generated during the combustion process. It features precision machining and design to ensure proper fitment and performance. Piston Pin: The piston comes with a piston pin, also known as a wrist pin, which connects the piston to the connecting rod. The piston pin allows the piston to pivot as it moves up and down within the cylinder bore. Sealing Rings: Pistons often come with piston rings installed on their outer circumference. These rings create a seal between the piston and the cylinder wall, preventing leakage of combustion gases and helping to maintain proper compression within the cylinder. Engine Performance: The quality and condition of the piston directly impact engine performance, efficiency, and longevity. A damaged or worn piston can lead to reduced power, increased fuel consumption, and potential engine damage if not addressed promptly. Replacement: Pistons may need replacement due to wear, damage, or as part of an engine overhaul. It is essential to use genuine or high-quality replacement pistons specifically designed for the engine model to ensure proper fitment and performance. Professional Installation: Installing pistons requires precision and expertise. It involves disassembling the engine, removing the old pistons, cleaning the cylinder bores, and carefully installing the new pistons to ensure proper alignment and sealing. OEM Quality: The RE61467 piston with pin is an OEM (Original Equipment Manufacturer) part manufactured to meet John Deeres stringent quality standards for performance, durability, and reliability. Below is a compilation of equipment specifically engineered to be compatible with a variety of John Deere models and types: Compatible with John Deere Engine Model(s): 3029DF129, 3029DAT01, 3029DAT50, 3029DF120, 3029DF124, 3029DF150, 3029DF151, 3029DF180, 3029DFG20, 3029DKV50, 3029DKV51, 3029DKV54, 3029DKV55, 3029DPY07, 3029TF129, 3029TF100 (FROM ESN 43,681), 3029TF120 (FROM ESN 140,914), 3029TF150 (FROM ESN 140,914), 3029TF270 (FROM ESN 140,914), 3029TFG20, 3029TFG80, 3029TFG89, 3029TFU20, 3029TFU29, 3029TFU80, 3029TFU89 Compatible with John Deere Tractor(s): 3100, 5105, 5200, 5205, 5210, 5220, 5300, 5310, 5310N Compatible with John Deere Skidder(s): 240 In summary, the RE61467 piston with pin is a critical engine component designed to fit specific models of John Deere tractors, contributing to efficient combustion, reliable engine performance, and overall durability of the engine.