Skip to product information
Suitable for 2Pcs Oxygen Sensor for Mazda 3 Mazda 5 2.0L 2.3L (04-07) | 234-4390 234-4396
1/9

Suitable for 2Pcs Oxygen Sensor

for Mazda 3 Mazda 5 2.0L 2.3L (04-07)
Replaces OE: 234-4390 234-4396
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
Aug 1 - Aug 4 +
🚚 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.
60-Day Return & Refund
+
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 60 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.

$34.95
Recent Order: This item was purchased 6 days ago (Verified)
  • 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

Years
Make
Model
Trim
Engine
Code
Body
2006-2007
Mazda
5
Sport, Touring, Grand Touring
2.3L 2260 cc I4 NA
L3-VE
Mini Passenger Van 4-Dr
2007
Mazda
5
Grand Touring
2.3L 2260 cc I4 NA
L3-VE
Mini Passenger Van 4-Dr
2004-2005
Mazda
3
S, GT, SP23 (Sedan/Hatch)
2.3L 2260 cc I4 NA
L3-VE
4-Dr
2004-2005
Mazda
3
GS, GX, i (Sedan/Hatch, incl. Canada)
2.0L 2000 cc I4 NA
LF-DE
4-Dr

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
234-4396
Interchange: 234-4396, 2344396, LF66-18-861A, LF66-18-861B-9U, LF66-18-861C, LF66-18-861C-9U, LF66-18-861B, L3A118861A, L3A118861B, L3A118861C, L3A118861C9U, L3K218861, L3K218861A, L3K218861B, L3K218861B9U, LF6818861A, LF6818861B, LF6818861B9U, LF6818861C, LF6818861D, LF6818861D9U
Position
Exhaust System, Upstream, Front (Pre-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 18.11 in.
- Mounting Type: Threaded
- Connector Gender: Female
- Thread Diameter: 0.708 in.
- Grade Type: Regular
- Fit Type: Specific
Core Part Number
234-4390
Interchange: 234-4390, 2344390, 2133889, 24232, 13770, L3A1-18-861A, L3A1-18-861B, L3A1-18-861C, L3A1-18-861C9U, L3K2-18-861, L3K2-18-861A, L3K2-18-861B, L3K2-18-861B-9U, LF6818861A, LF68-18-861B, LF68-18-861B-9U, LF68-18-861C, LF68-18-861D, LF68-18-861D-9U, L3K218861A, L3K218861B, LF6618861B9U, LF6618861C, 2133888, 13769, 24234, 753374, REA2013, SG1662
Position
Exhaust System, Downstream, Rear (Post-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire
- Wire Harness Length: 31.10 in.
- Mounting Type: Threaded
- Connector Gender: Female
- Thread Diameter: 0.711 in.
- Grade Type: Regular
- Fit Type: Specific

 

Package Content :

2PCS (1*234-4396 Upstream + 1*234-4390 Downstream) Oxygen Sensor