Labour Day Sale. 10% off select brands, an extra 20% off Clearance, up to $250 off MBRP truck exhaust. Shop the sale
Labour Day Sale, ends Tuesday. Shop the deals
Tariff drama? Not here. Every order ships with zero surprise fees.
Tariff drama? Not here. Every order ships with zero surprise fees.


SKU: SKU: FST170408
The Bosch LSU4 Oxygen Sensor is widely used in the FAST product line. Finding its way into the FAST EZ-EFI Fuel, EZ-EFI Fuel + Igniton as well as the XFI Sportsman and even the FAST Air/Fuel Meters, the LSU4 is accurate, durable and essential to the operation of a number of FAST products.
This Bosch LSU4 Wideband Oxygen Sensor is used on FAST EZ Fuel, EZ Fuel + Ignition, XFI Sportsman and Air/Fuel Meter Kits.
Free Canadian Shipping on Orders $399+*
No Duties or Brokerage Fees in Canada
500K+ Parts from 400+ Trusted Brands
