This is a brand-new, genuine-grade MAHLE AB114000S cabin A/C blower motor, professionally engineered as a direct OEM replacement for Audi A4 B8, A5 8T3, and Q5 8RB models. It fully interchanges with factory OEM part numbers 8K1820021A, 8K1820021B, and 8K1820021C, achieving 100% dimensional, electrical, and performance matching for original vehicle HVAC systems without any adaptation or modification.
As the core air supply component of the vehicle heating, ventilation and air conditioning system, this 12V high-efficiency blower motor delivers stable airflow circulation for cabin cooling, heating, defrosting and demisting functions. With a rated power of 200W and standard working current of 16.5A, it features a 133.5mm standard outer diameter and 1-pin flat blade terminal plug design, perfectly compatible with original vehicle wiring harness and climate control modules. Designed without an integrated regulator, it fully matches the original car’s independent speed regulation logic, ensuring precise and sensitive fan speed adjustment at all gears.
Adopting MAHLE exclusive bionic optimized fan blade technology, the motor effectively reduces operating noise by up to 4dB compared with ordinary blower motors, realizing ultra-quiet operation while improving overall ventilation efficiency by approximately 15%. Equipped with high-precision wear-resistant bearings and high-purity copper coil windings, it resists high temperature aging, long-term high-load operation and frequent speed switching, effectively avoiding common faults such as stuck fan, jittery operation, weak airflow, intermittent fan failure, abnormal dashboard rattling noise and motor burnout.
Every unit undergoes strict factory multi-layer testing including dynamic balance calibration, high-temperature aging test, voltage endurance inspection and airflow performance detection to ensure zero defect delivery. The high-strength anti-vibration plastic housing effectively isolates vibration and noise, features excellent heat dissipation and corrosion resistance, and maintains stable working performance in complex vehicle operating environments such as high temperature in summer and low temperature in winter.
Strictly manufactured in accordance with MAHLE German industrial standards and OEM factory specifications, all mounting positions, plug interfaces and assembly gaps are completely consistent with original parts, supporting plug-and-play direct installation. It perfectly solves the problems of insufficient cold/heat air output, unadjustable wind speed and failed defrosting caused by aging or damaged original blower motors, fully restoring the original comfortable climate control experience of Audi vehicles.
Suitable for professional auto repair workshop replacement, vehicle aftermarket maintenance and bulk wholesale supply. Please confirm your vehicle chassis model, production year and original OEM part number (8K1820021A / 8K1820021B / 8K1820021C) before purchase to ensure accurate compatibility. All products are 100% brand new with no refurbished, repaired or second-hand parts, providing long-lasting reliable service life for your vehicle HVAC system.
