Skip to product information
Close-up of automotive oxygen sensor with wiring connector, vehicle engine part
1/9
  • Close-up of automotive oxygen sensor with wiring connector, vehicle engine part
  • Close-up of automotive oxygen sensor with connectors and wiring for vehicle engine system
  • Automotive oxygen sensor with plug and cable, high performance O2 sensor features listed.
  • Automotive oxygen sensor with wiring connector for vehicle engine performance and emissions
  • Close-up of automotive oxygen sensor with connector, vehicle engine part replacement
  • Diagram of an oxygen sensor detailing nose, heater, sensor element, membrane, laser welds, and stainless strands with Teflon insulation; below is a valve lift graph for a 270 Magnum engine showing exhaust and intake valve timing with rocker ratio of 1.5
  • Step-by-step guide showing dashboard error, faulty oxygen sensor diagnosis, removal, replacement, and code clearing
  • Diagram showing O2 sensor positions on vehicle exhaust system before and after catalytic converter with labeled banks and sensors
  • Detailed labeled diagram of an oxygen sensor showing components like cable connector, heater element, stainless steel shell, and zirconium dioxide ceramic, plus graphs comparing sensor wavelength performance.

Downstream Left Oxygen Sensor

Fits Toyota Sienna & Lexus RX350 3.5L (10-15)
Replaces OE: 234-4416, 894650E040
Resolves Symptoms:
  • Persistent Check Engine Light
  • Rough Idle
  • Poor Fuel Economy
  • Lean Hesitation
Delivery Free
Arrives: Sep 20 - Sep 23
Dispatched quickly from local US warehouses.
2-Year Warranty
+

🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.

🔄 Free Replacement: Brand-new replacement for free if quality issues occur.

30-Day Return & Refund
+

📦 Free Returns: Zero costs to you if the product has quality issues.

💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.

5-Step Fitment Guide
+
  1. Check OE: Find original part no. & plug.
  2. Compare Photos: Match plug with our images.
  3. Verify YMM: Confirm via fitment tool.
  4. Review Specs: Check pins & dimensions.
  5. Purchase: Buy confidently once matched!
Review Rewards
+

Share an install photo & review to unlock:

  • Under $50 Orders: 3% Off Next Order
  • $50+ Orders: 5% Direct Cashback

*Email a screenshot of your review to support to claim.

Check if your car is compatible This helps guarantee fitment of parts.
⏳ Loading fitment data...
$42.95
  • No hidden fees: What you see is what you pay.
  • Restore performance: Fix issues and drive with confidence.
  • 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

Automotive-Leader Sensors

Vehicle Compatible

Year
Make
Model
Engine/Displacement
2010-2015
Lexus
RX 350
3.5L V6
2011-2015
Toyota
Sienna
3.5L V6

 

Product Specifications

Core Part Number
234-4416
Full Interchange List: 2344416, 234 4416, 894650E040, 89465-0E040, 8946548220, 89465-48220, 24677, 25024420, ES20213
Position
Downstream / Rear / Post-catalyst (Sensor 2)
Key Parameters
- Sensor Type: Heated O2 Sensor
- Harness: 4-wire, 10.04 in (255mm), Male connector
- Thread Specs: M18×1.5 (0.708 in / 18.0mm), Threaded
- Fit Type: Specific Fit