WHEEL SPEED SENSOR
SKU: WSS-391
PAT Wheel Speed Sensor WSS-391
The PAT Wheel Speed Sensor WSS-391 is essential for the operation of intelligent safety systems and other vital vehicle functions. Originally introduced for Anti-Lock Braking Systems (ABS), these sensors are now integral to numerous modern vehicle systems. - Crucial for driving safety, influencing systems such as ABS, TCS, ESC, ADAS, and ACC - Supports engine management, transmission control, and navigation systems - Available in two types: passive (inductive) and active - Passive sensors are inductive analogue types that do not require an external power supply - Active sensors are digital hall sensor types with integrated electronics, requiring a power supply from the ABS module - Active sensors offer accurate wheel speed detection from stationary, crucial for traction control and hill descent control - Symptoms of a faulty wheel speed sensor include multiple warning lights on the dashboard, wheels locking during braking, pulsation of the brake pedal, erratic or no speedometer operation, and other seemingly unrelated system failures - For effective diagnosis, use a suitable diagnostic tool to read fault codes, inspect the wiring and mechanical assemblies, check the output signal, supply voltage, and sensor resistance Ensure the vehicle is listed in the compatibility list and read any notes associated with the product for correct fitment. If there are no vehicle details listed, please send a message.| SKU | WSS-391 |
| Model # | WSS-391 |
| Barcode # | 9341554177017 |
| Brand | PAT |
| Placement On Vehicle | Front Left (FL) |
| Placement On Vehicle | LHF |
| Warranty | 12 Months |
| Position On Vehicle | Front Left (FL) |
| Position On Vehicle | LHF |
| Contains Liquid | No |
Packaging note: PAT products may be supplied in PAT Premium packaging instead of the manufacturer's original box.
PAT sources EFI and engine-management parts from established OE-type manufacturers and repackages some of them in Australia. The manufacturer inside can change between batches as supply changes — for example, a part once made by Hitachi may now come from Bosch. Every unit is an OE-type part from a recognised manufacturer.
Packaging: Manufacturers periodically update their packaging and labelling. You may receive the current or a previous design — the product, formulation and part number are unchanged.
Fitment (vehicle-specific products): For products listed to suit a specific vehicle, our fitment data is kept as accurate as possible, but vehicle catalogues are not perfect. Some models had more than one part fitted depending on build date, engine, or component size/variant. It is the buyer's responsibility to confirm the part suits their vehicle before purchasing. If you have any doubt, please message us with your vehicle's registration number and state (preferred), or full VIN/build details, and we'll do our best to confirm before you buy.
