Brand ?KAC Manufacturer Part Number ?4881PSP196FUS (Replacement Power Steering Pump)The power steering pump is used to converting power to the power steering fluid from the reservoir into the steering gear and keeps the wheels running in good conditions. If you have symptoms like whining noise while turning the wheel, steering wheel slow to respond, stiff steering wheel, or squealing & groaning noises, then you need to double check the power steering pump and get it replaced if it is defective. (OE Design and Quality)Each part is built to stringent OE specifications, stable characteristics, high reliability. 100% tested before shipping, it works even better and lasts longer at a much lower price, it is a direct replacement. Besides, it can be installed easily without using complicated tools, save yourself times and money by replacing the power steering pump yourself. (Perferct Experience)It not only makes your car safer on the road but also gives you a more pleasant and smoother driving experience. (Note: Installation by a trained professional is highly recommended ) (High Quality Material)Power steering pump is made of high quality material, which has good wear resistance, high temperature resistance, corrosion resistance, aging resistance, can guarantee maximum strength and durability, and long service life. (Fast Shipping & Warranty Commitment)New Power Steering Pump directly from the USA within 2~5 working days, warranty 2 years. Please enter the year, make and model number in the Amazon Suitability Filter in the upper left corner to confirm compatibility before placing your order. Any problem, just feel free to contact us via Amazon message center, we will reply to your message within 24 working hours. Item Specifics:Name: Power Steering PumpMaterial: AluminumManufacturer Part Number: 491109E005,5424,36P0479,50-5424,8979,21-5218,AA1215218,PSP1034,55-5424,491100Z800,491109E005??Fitment:For 1998-2001 for Altima 2.4L 2389CC l4 GAS DOHC Naturally Aspirated.Package Including:1 x Power Steering Pump