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Important: Verify connector shape and pins match your original part.
4-Piece Oxygen Sensor
Fits Chevy Silverado & GMC Sierra 1500/2500 (2003-2006)
Replaces OE: 234-4669, 234-4407
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Oct 29
Prepared
Oct 29-Oct 30
Delivered
Nov 12-Nov 20
Requires overseas shipment. Upgrade to expedited shipping at checkout if urgent.
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
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- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
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$55.95
High demand: Purchased 3 days ago
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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
|
Year
|
Make
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2003-2006
|
Cadillac
|
Escalade
|
6.0L V8
|
|
2003-2006
|
Cadillac
|
Escalade EXT
|
6.0L V8
|
|
2003-2006
|
Chevrolet
|
Silverado 1500
|
6.0L V8
|
|
2002
|
Chevrolet
|
Silverado 1500 HD
|
6.0L V8
|
|
2002
|
Chevrolet
|
Silverado 2500
|
6.0L V8
|
|
2002
|
Chevrolet
|
Silverado 2500 HD
|
6.0L V8
|
|
2002
|
Chevrolet
|
Silverado 3500
|
6.0L V8
|
|
2006
|
Chevrolet
|
Suburban 1500
|
6.0L V8
|
|
2002
|
Chevrolet
|
Suburban 2500
|
6.0L V8
|
|
2002
|
GMC
|
Sierra 1500
|
6.0L V8
|
|
2002
|
GMC
|
Sierra 1500 HD
|
6.0L V8
|
|
2002
|
GMC
|
Sierra 2500
|
6.0L V8
|
|
2002
|
GMC
|
Sierra 2500 HD
|
6.0L V8
|
|
2002
|
GMC
|
Sierra 3500
|
6.0L V8
|
|
2003-2006
|
GMC
|
Yukon
|
6.0L V8
|
|
2003-2006
|
Hummer
|
H2
|
6.0L V8
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4669
Interchange: 2344669, 12572705, 12600893, 12611870, 12617332, 213-1161, 2131161, 15282, OS1820, 21549, ES20008, 19107300, 213-3824, 2133824 |
|
Position
|
Exhaust System, Upstream (Pre-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Connector Gender: Female - Wire Harness Length: 14.76 in - Thread Diameter: 0.708 in - Mounting Type: Threaded |
|
Core Part Number
|
234-4407
Interchange: 2344407, 253-33812, 25333812, 5S4280, 21514, 213-1148, 2131148, SG827, SU1478, 13178, 15895, OS1581, 2132874 |
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Connector Gender: Female - Wire Harness Length: 16.54 in - Thread Diameter: 0.708 in - Mounting Type: Threaded |
Package Content :
4PCS (2*234-4669 Upstream+2*234-4407 Downstream) Oxygen Sensor