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Important: Verify connector shape and pins match your original part.
Upstream Air Fuel Ratio Sensor
Fits Toyota Avalon Camry Sienna & Lexus 3.0L (2000-2004)
Replaces OE: 234-9021
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Oct 15
Prepared
Oct 15-Oct 16
Delivered
Oct 17-Oct 20
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
- Check OE: Find original part no. & plug.
- Compare Photos: Match plug with our images.
- Verify YMM: Confirm via fitment tool.
- Review Specs: Check pins & dimensions.
- 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 screenshot of your review to support to claim.
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$40.95
-
No hidden fees: What you see is what you pay.
-
Restore performance: Fix issues and drive with confidence.
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
|
|---|---|---|---|
|
2000-2004
|
Toyota
|
Avalon
|
3.0L V6
|
|
2001-2003
|
Toyota
|
Sienna
|
3.0L V6
|
|
2001-2003
|
Toyota
|
Solara
|
3.0L V6
|
|
2001
|
Toyota
|
Camry
|
3.0L V6
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-9021
Interchange: 89467-33030, 89467-41030, 89467-41040, 89467-42020, 8946733030, 8946741030, 8946741040, 8946742020, 2131483, 2132842, 25054003, 5S3585, ES10931 |
|
Position
|
Exhaust System, Upstream, Front, Pre-cat
|
|
Key Parameters
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- Sensor Type: Heated Air/Fuel Ratio Oxygen Sensor
- Wire Quantity: 4 Wires - Connector Gender: Male - Mounting Type: Threaded - Product Fit: Direct Fit - Feature: Improve Engine Efficiency & Fuel Economy, Reduce CO2 and Harmful Emissions |