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Search our online knock sensor catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Audi S4 Knock Sensor parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day. They are available for the following Audi S4 years: 94, 93, 92, 1994, 1993, 1992. This part is also sometimes called Audi S4 Engine Sensors. We stock knock sensor parts for most Audi models including A4 Quattro, 200 Quattro, 90, A4, V8 Quattro, A8 Quattro, A6 Quattro, A6, TT Quattro, Allroad Quattro, TT, 100, 90 Quattro, Q7, Coupe Quattro, Cabriolet, 100 Quattro, S6, 5000 and A3.

We stock these Knock Sensor brands for the Audi S4: Bosch.

Click to Enlarge 94 1994 Audi S4 Knock Sensor 2.2L 5 Cyl Bosch Green Retail Price: $79.63 Your Price: $53.75 Quantity: Part Number: W0133-1614421 Notes: Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Product Remark: Green Availability: In Stock Shipping Options: Ground, Overnight, 2 Day OEM This Product Fits the Following:   Vehicle Engine •  1994 Audi S4 2.2L 5 Cyl

Click to Enlarge 93 1993 Audi S4 Knock Sensor 2.2L 5 Cyl Bosch Green Retail Price: $79.63 Your Price: $53.75 Quantity: Part Number: W0133-1614421 Notes: Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Product Remark: Green Availability: In Stock Shipping Options: Ground, Overnight, 2 Day OEM This Product Fits the Following:   Vehicle Engine •  1993 Audi S4 2.2L 5 Cyl

Click to Enlarge 92 1992 Audi S4 Knock Sensor 2.2L 5 Cyl Bosch Green Retail Price: $79.63 Your Price: $53.75 Quantity: Part Number: W0133-1614421 Notes: Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Product Remark: Green Availability: In Stock Shipping Options: Ground, Overnight, 2 Day OEM This Product Fits the Following:   Vehicle Engine •  1992 Audi S4 2.2L 5 Cyl