Skip to product information
4Pcs Wideband A/F & O2 Sensor Set for Audi A4 A6 3.2L V6 (2005-2009) | 234-5120 234-4409 234-4408
1/6

4Pcs Wideband A/F & O2 Sensor Set

for Audi A4 A6 3.2L V6 (2005-2009)
Replaces OE: 234-5120 234-4409 234-4408
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
Check if your car is compatible This helps guarantee fitment of parts.
Delivery Free
Sep 15 - Sep 18 +
🚚 Fast US Local: Dispatched quickly from our local US warehouses for swift delivery.
2-Year Warranty
+
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: We will provide a brand-new replacement for free if any quality issues occur.
30-Day Return & Refund
+
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
Review Rewards & Cashback
+

Share an install photo & review to unlock tier rewards:

🥈 Under $50
3% Off Next Order
🥇 $50+ Orders
5% Direct Cashback
🔥 Tip: Buy a Combo Set to easily hit $50 and unlock 5% Cashback!

💡 How to claim: Email a screenshot of your review to our support team.

$96.95
  • No other fees; this is the final payment price
  • Get rid of your car's malfunctions and start a pleasant driving journey
  • Visa
  • Mastercard
  • American Express
  • Discover
  • JCB
  • PayPal
If problem with product: Free Returns & Refunds
Check Engine Light? Find Your Symptoms
+
🌬️ O2 & A/F Sensors
  • P0134No Activity Detected
  • P0135Heater Circuit Malfunction
  • P0137/38Circuit Low/High Voltage
  • P2195Signal Stuck Lean
  • P0030/31Heater Control Circuit
⛽ Fuel & Air Mixture
  • P0171/74System Too Lean
  • P0172System Too Rich
  • P2096Post-Catalyst Trim Too Lean
  • P0087Fuel Rail Pressure Low
  • P0201-04Injector Circuit Open
♻️ Catalytic Converters
  • P0420Efficiency Below Threshold (B1)
  • P0430Efficiency Below Threshold (B2)
⚡ Ignition / Misfires
  • P0300Random Misfire
  • P0301-06Cylinder-Specific Misfire
🚛 NOx Sensors & SCR
  • P2200/02Sensor Circuit / Signal Low
  • P229FCircuit Range/Performance
  • P207FReductant Quality Perf.
  • 46F2/4D16BMW SCR Efficiency Faults
🛑 ABS & Wheel Speed
  • C1021Front Wheel Speed Sensor
  • C1025Sensor Signal Erratic
  • C1207ABS Pump Overrun
  • C0561System Disabled

Automotive-Leader Sensors

Vehicle Compatible

Year
Make
Model
Engine/Displacement
Note
2009
Audi
A4 Quattro Cabriolet
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Convertible 2-Door
2006-2009
Audi
A6 Elite
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2007-2009
Audi
A6 Sport
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006-2008
Audi
A4 Base
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2007-2008
Audi
A4 Quattro Avant
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Wagon 4-Door; Eng Code: BKH
2007-2008
Audi
A4 Quattro Base
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door; Eng Code: BKH
2007-2008
Audi
A4 Quattro Cabriolet
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Convertible 2-Door; Eng Code: BKH
2006-2008
Audi
A6 Base
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006-2008
Audi
A6 Quattro Avant
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Wagon 4-Door
2005-2008
Audi
A6 Quattro Base
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006-2008
Audi
A6 Quattro Elite
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006-2007
Audi
A4 Elite
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006
Audi
A4 S Line
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006
Audi
A4 S Line Sport
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2005-2006
Audi
A4 Quattro Avant
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Wagon 4-Door
2005-2006
Audi
A4 Quattro Base
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2005-2006
Audi
A4 Quattro Elite
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2005-2006
Audi
A4 Quattro S Line
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006
Audi
A4 Quattro Vangard
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006
Audi
A6 Luxury
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door
2006
Audi
A6 Quattro S Line
3.2L V6
Fit for; GAS; DOHC; Naturally Aspirated; Sedan 4-Door

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
234-5120
Interchange: 2345120, 234 5120, 06E906265F, 06E906265S
Position
Exhaust System, Upstream, Front (Pre-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Wide-Band Oxygen Sensor
- Wire Configuration: 5-Wire
- Wire Harness Length: 22.56 in
- Mounting Type: Threaded
- Connector Gender: Male
- Thread Diameter: 0.711 in / M18 x 1.5
- Grade Type: Regular
- Fit Type: Specific
Core Part Number
234-4409
Interchange: 2344409, 234 4409, 06E906265D
Position
Exhaust System, Downstream Left, Rear (Post-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Narrow-Band Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 38.19 in
- Mounting Type: Threaded
- Connector Gender: Male
- Thread Diameter: 0.708 in / M18 x 1.5
- Grade Type: Regular
- Fit Type: Specific
Core Part Number
234-4408
Interchange: 2344408, 234 4408, 06E906265E
Position
Exhaust System, Downstream Right, Rear (Post-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Narrow-Band Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 38.19 in
- Mounting Type: Threaded
- Connector Gender: Male
- Thread Diameter: 0.708 in / M18 x 1.5
- Grade Type: Regular
- Fit Type: Specific

 

Package Content :

4Pcs (2*234-5120 Upstream + 1*234-4409 Downstream Left + 1*234-4408 Downstream Right) Oxygen Sensor