ABS Wheel Speed Sensor Front R / L 97-98 BMW E39 528i, 540i In order to avoid return hassle and save yours and our time, you must cross-check indicated reference part numbers against those found on your old unit. Do not rely on vehicles compatibility list, which is presented for the reference purpose and shouldn't be your guide to determine compatibility. If you are unsure, you may call local dealership (auto parts dept.) to obtain correct part numbers or ask your mechanic. If you would like us to help you, please contact us and provide your vehicle's detailed info such as: Make/Model/Year/Engine/Full VIN# and we will do our best to find compatibility. PART REFERENCE NUMBERS: BMW: STANDARD MOTOR: 34521182159 3452 1182 159 ALS458 AIRTEX/WELLS: BECK/ARNLEY: 5S10536 SU11989 0844143 FLENNOR DORMAN: FSE51515 970114 *Please cross-check indicated OEM reference codes against those found on your current unit. You may call local dealership (auto parts dept.) to obtain correct numbers. COMPATIBLE VEHICLES: * Fits front right or left side (indicated price is for 1 sensor). Models presented for reference purpose only! Year: Make: Model: Engine: 1998 BMW 528i 2.8L 2793CC l6 GAS DOHC 1998 BMW 540i 4.4L 4398CC V8 GAS DOHC 1997 BMW 528i 2.8L 2793CC l6 GAS DOHC 1997 BMW 540i 4.4L 4398CC V8 GAS DOHC