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Expert Recommendation: Replacing all sensors together ensures optimal engine performance and saves you from paying mechanic labor costs twice.
2Pcs O2 Sensor Upstream & Downstream
for Smart Fortwo 1.0L 3-Cyl (2008-2015)
Replaces OE: 234-5071 234-4881
$69.95
Final:
$66.45
-5% OFF
Order today, estimated delivery:
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- Free US Shipping (Local Warehouse)
- 30-Day Return, Exchange, and Refund Guarantee
- 2-Year Warranty (100% Brand New)
- Guaranteed Exact Fit
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Check Fitment Below: If your vehicle matches, place your order directly with confidence!
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Sensor Installation Blueprint
👨🔧 Mechanic's Installation Notes:
This is a COMPLETE SET (Upstream & Downstream). O2 sensors wear out at the same rate (typically 80k-100k miles).
Installation: Upstream sensors screw into the exhaust manifold near the engine. Downstream sensors screw into the pipe after the catalytic converter under the car.
Expert Recommendation: Replacing all sensors together ensures optimal engine performance and saves you from paying mechanic labor costs twice.
Automotive-Leader Sensors
Vehicle Compatible
|
Year
|
Make
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2008-2015
|
Smart
|
Fortwo
|
1.0L L3
|
Product Specifications
Warranty & Support: 2 Years + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
For 234-5071:
234-5071 / 2345071 Interchange: 234 5071, 0055429818 For 234-4881: 234-4881 / 2344881 Interchange: 234 4881, 0035428218, 0045420718, 0065423918, 56029084AA, 7B0906262 |
|
Position
|
For 234-5071: Exhaust System, Upstream, Front, Pre-catalytic converter
For 234-4881: Exhaust System, Downstream, Rear, Post-catalytic converter |
|
Key Parameters
|
Common Specifications:
- Grade/Fit: Regular, Specific Fit - Mounting Type: Threaded Individual Specifications: 234-5071: - Connector Gender: Male - Sensor Type: Heated Wide-Band - Thread Diameter: 0.711 IN - Wire Quantity: 5 Wires - Wire Harness Length: 13.15 IN 234-4881: - Connector Gender: Female - Sensor Type: Heated Narrow-Band - Thread Diameter: 0.708 IN - Wire Quantity: 4 Wires - Wire Harness Length: 12.40 IN |
Tips: Please confirm the part number and your vehicle information (e.g., Year, Make, Model & Engine) before placing an order.
Package Content :
2PCS (1*234-5071 Upstream+1*234-4881 Downstream) Oxygen Sensor