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Important: Verify connector shape and pins match your original part.
Downstream Oxygen Sensor
Fits Chevy Silverado & GMC Sierra (08-16)
Replaces OE: 234-4256, 25024736
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
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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$25.95
-
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
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Model
|
|---|---|---|
|
2008-2014
|
Cadillac
|
Escalade
|
|
2008-2013
|
GMC
|
Sierra 1500
|
|
2008-2015
|
GMC
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Sierra 2500/3500
|
|
2008-2014
|
GMC
|
Yukon
|
|
2008-2014
|
GMC
|
Yukon XL 1500
|
|
2008-2013
|
GMC
|
Yukon XL 2500
|
|
2008-2013
|
Chevrolet
|
Avalanche
|
|
2008-2013
|
Chevrolet
|
Corvette
|
|
2010-2016
|
Chevrolet
|
Camaro
|
|
2015-2016
|
Chevrolet
|
Caprice
|
|
2008-2013
|
Chevrolet
|
Silverado 1500
|
|
2008-2015
|
Chevrolet
|
Silverado 2500/3500
|
|
2014-2016
|
Chevrolet
|
SS
|
|
2008-2014
|
Chevrolet
|
Suburban 1500
|
|
2008-2013
|
Chevrolet
|
Suburban 2500
|
|
2008-2014
|
Chevrolet
|
Tahoe
|
Product Specifications
Warranty & Support: 2-Year Warranty (Pre-sale Load Test + 24/7 Technical Support)
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Item
|
Specification
|
|---|---|
|
Core Part Number
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234-4256
Interchange: 234 4256, 2344256, 12609457, 12611165, 92457789, 21066, ES20094, 15698, 25024736 |
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Position
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Downstream, Post-Catalytic Converter
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|
Key Parameters
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- Type: Heated Oxygen Sensor (4-Wire)
- Wire Harness Length: 376 mm (14.80 in) - Connector Gender: Female - Thread Size: M18×1.5 (0.708 in / 17.98mm) |
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Key Features
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Improves fuel efficiency, stable performance, durable.
|