Description
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LSU 4.9 Wideband A/F
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.
Additional Information
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.
Application Summary
Universal
Part Type
Oxygen Sensor
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 21:16:25
Features
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Fast, FAST ELECTRONICS |
| StreetFX SKU | fst170413 |
| SFX Item ID | 5015068 |
| Accounting SKU | fst-170413 |
| Manufacturer SKU | 170413 |
| Manufacturer UPC | 036584405115 |
| Alternative References | 170413, FST-170413 |
O2 Sensor, LSU 4.9 Wideband, 5-Wire, 6 Pin Plug, Each
FAST LSU 4.9 wideband oxygen sensors are capable of accurately measuring air/fuel ratios of popular fuels such as gasoline, ethanol, methanol, and diesel. This enhanced accuracy leads to more accurate tuning, more power and efficiency. LSU 4.9 sensors are accurate to air/fuel ratios as rich as 4:1 and as lean as 20:1 and are a direct replacement for the sensors provided with the FAST wireless air fuel meter.
Product features:
• E85 compatible
• Gasoline compatible
• Diesel compatible
• Methanol/alcohol compatible
• Lambda range 0.65 to 1.36
• Oxygen sensor wire length 39.370 in.
• Maximum exhaust gas temperature 1,922 degrees F
• Operating exhaust gas temperature 1,706 degrees F
• Thread size 18mm x 1.50
| Product Attributes | |
|---|---|
| Brand | FAST |
| Manufacturer's Part Number | 170413 |
| Part Type | Oxygen Sensors |
| Product Line | FAST LSU 4.9 Wideband Oxygen Sensors |
| UPC | 036584405115 |
| Number of Wires | 5 |
| Mounting Style | Thread-in |
| Oxygen Sensor Bung Included | No |
| Wiring Harness Included | Yes |
| Wiring Harness Plug Style | 6 round female |
| Quantity | Sold individually. |
Brochures
Compatibility
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