Product Description: High-Performance Turbocharger Wastegate Actuator Maximize Your Vehicle’s Efficiency with Our Advanced Turbocharger Actuator OE Number: This turbo actuator is designed with reference to OE numbers 03F145725K, 03F145701K, 03F145701H, 03F145701HV, 03F145701HX, and 03F145701KV. Ensure these numbers match your current part for a perfect fit and optimal functionality. Fitment: Specifically crafted as a replacement for a variety of models, including the A1 and A3, as well as Seat Altea, Ibiza, Leon, Toledo, and Skoda Fabia, Octavia, Rapid, and Roomster. Verify compatibility with your vehicle to ensure seamless integration. Function: This actuator plays a crucial role in controlling the speed of the turbine, preventing it from overspeeding, and regulating the compressor speed. It protects the turbocharger from unnecessary wear and tear, extending its lifespan and maintaining efficient performance. Practical: Designed to control the boost output of your turbo, this actuator efficiently diverts excess exhaust gases away from the turbine wheel. Featuring a robust spring and diaphragm, it ensures precise control and reliable operation. Operation: The actuator’s spring holds the wastegate shut until the boost pressure reaches a predetermined level. Once reached, the wastegate opens, allowing gases to escape and reducing the boost pressure, thus optimizing engine performance. Upgrade your vehicle’s turbo system with this high-quality turbocharger wastegate actuator. Combining durability, precision, and efficient operation, it offers an effective solution for enhancing your engine’s performance and protecting your turbocharger from potential damage.