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Downstream Oxygen Sensor
Fits Toyota 4Runner/Tacoma/T100 & Tundra (1996-2004)
Replaces OE: 234-4162, 8946509020
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
- 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 a screenshot of your review to support to claim.
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$26.95
High demand: Purchased recently this month
-
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
|
Sensor Position
|
|---|---|---|---|---|
|
1996-2000
|
Toyota
|
4Runner
|
2.7L L4
|
Upstream
|
|
1999-2000
|
Toyota
|
4Runner
|
2.7L L4
|
Downstream (RWD, Exc. Calif)
|
|
1996-1999
|
Toyota
|
4Runner
|
3.4L V6
|
Upstream (Automatic trans)
|
|
2001-2004
|
Toyota
|
Sequoia
|
4.7L V8
|
Downstream (4WD)
|
|
1994-1995
|
Toyota
|
Pickup
|
3.0L V6
|
Downstream (RWD, Calif)
|
|
1995-2000
|
Toyota
|
Tacoma
|
2.4L L4
|
Upstream (Standard trans)
|
|
1995-2000
|
Toyota
|
Tacoma
|
2.7L L4
|
Upstream
|
|
1995-1997
|
Toyota
|
Tacoma
|
2.7L L4
|
Downstream
|
|
1998-2000
|
Toyota
|
Tacoma
|
2.7L L4
|
Downstream (4WD, Standard trans)
|
|
1995-2000
|
Toyota
|
Tacoma
|
3.4L V6
|
Upstream (Automatic trans)
|
|
1995-2000
|
Toyota
|
Tacoma
|
3.4L V6
|
Downstream (4WD, Automatic trans)
|
|
1995-1998
|
Toyota
|
T100
|
2.7L L4
|
Upstream (Automatic trans)
|
|
1995-1998
|
Toyota
|
T100
|
3.4L V6
|
Upstream (Automatic trans)
|
|
1995-1998
|
Toyota
|
T100
|
3.4L V6
|
Downstream (4WD)
|
|
2000
|
Toyota
|
Tundra
|
3.4L V6
|
Upstream (Automatic trans, Exc. Calif)
|
|
2000-2004
|
Toyota
|
Tundra
|
4.7L V8
|
Downstream (4WD)
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4162
Interchange: 234 4162, 2344162, 89465-09020, 89465-09140, 89465-09190, 89465-09210, 89465-09220, 89465-09310, 89465-09320, 89465-0C200, 89465-39735, 89465-39835, 89465-39865, 89465-80034 |
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated
- Wire Quantity: 4 Wires - Wire Harness Length: 10.63 In. - Fit Type: Specific |