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Important: Verify connector shape and pins match your original part.
Downstream Oxygen Sensor
Fits Toyota Tacoma & 4Runner (1995-2004)
Replaces OE: 234-4161
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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$29.95
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No hidden fees: What you see is what you pay.
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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
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Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
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Item
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Specification
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Core Part Number
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234-4161
Interchange: 2344161, 89465-09100, 89465-09130, 89465-09150, 89465-09160, 89465-09240, 89465-09300, 89465-09380, 89465-09390, 894650C220, 8946529825, 8946539755, 8946539895, 8946580035, 3051, 13095, 13340, 15417, 15418, 213-1435, 213-1495 |
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Position
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Exhaust System, Downstream, Rear, Post-Catalytic Converter
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Key Parameters
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- Sensor Type: Heated
- Wire Count: 4-Wire - Wire Harness Length: 15.35 in - Benefits: Improve Fuel Efficiency, Stable Performance, Durable - Note: Manual measurement may have 1-3 mm gap |
Package Content :
1Pcs 234-4161 Oxygen Sensor