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FAST O2 Sensor Bosch LSu4 Wideband

FAST · New

FAST O2 Sensor Bosch LSu4 Wideband

MPN 170408 · Store SKU fst170408

$110.95
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Supplier stock checked 11/7/2026, 4:21:57 PM UTC. Adding a part does not reserve it.

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Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

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. Bosch LSU4 Wideband Oxygen Sensor for EZ-EFI, EZ-EFI 2.0 and XFI Sportsman

Manufacturer fitment & guides

Check 170408 against the manufacturer’s application information below.

Part-specific notes

  • California Proposition 65: Y

Manufacturer documents

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