When discussing the cost of modifying the seat of a Caterpillar excavator, it is important to first understand that different models of Caterpillar excavators may have differences in seat structure and accessories, thus the cost of modification may vary. Generally, the price of modifying the seat of a Caterpillar excavator is influenced by various factors, such as the choice between original factory parts and aftermarket parts, the addition or removal of seat functions (such as heating, massage, etc.), and installation service fees. Firstly, the price of modifying with original factory seats is relatively high due to their quality assurance and high compatibility with the machine; while aftermarket seats may have a price advantage, they may lag behind in quality and durability. If choosing seats with additional comfort features, the cost will further increase. Secondly, professional customization and installation services for specific Caterpillar excavator models will also affect the final price. Therefore, it is recommended to contact professional engineering machinery service providers or directly consult the Caterpillar official after-sales service department, providing information on your excavator's specific model and seat requirements, in order to obtain an accurate quotation. In summary, there is no fixed answer to how much it costs to modify the seat of a Caterpillar excavator, as it depends on actual needs and market conditions. For Caterpillar excavator users intending to modify their seats, comprehensive understanding and comparison of the advantages and prices of each option are key to making wise decisions.