FAST
Bosch LSU 4.9 Wideband for A/F Meter
SKU: F003 170413
Description
Part #: 170413
This Wideband oxygen sensor is capable of measuring air fuel ratios much more accurately than a factory Narrowband sensor. This enhanced accuracy leads to more accurate tuning and more power and efficiency. The FAST LSU 4.9 sensor is accurate to Air/Fuel ratios as rich as 4:1 and 20:1 lean and is a direct replacement for the sensors provided with the FAST Wireless Air Fuel Meter.
A highly accurate O2 sensor, the Bosch LSU 4.9 is used in our single and dual band wireless air fuel kits under part numbers 170301 and 170302. Compatible with Gasoline, E85, Ethanol, Methanol/Alcohol and Diesel. High max temperature range.
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Specifications
| Brand | FAST |
| Part Number | F003 170413 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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