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Suitable for Downstream O2 Sensor for Cadillac Escalade Chevy Silverado GMC Sierra | 12657188 234-4974
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Suitable for Downstream O2 Sensor

for Cadillac Escalade Chevy Silverado GMC Sierra
Replaces OE: 12657188 234-4974
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
Check if your car is compatible This helps guarantee fitment of parts.
Delivery Free
Aug 1 - Aug 4 +
🚚 Fast US Local: Dispatched quickly from our local US warehouses for swift delivery.
2-Year Warranty
+
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: We will provide a brand-new replacement for free if any quality issues occur.
60-Day Return & Refund
+
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 60 days for defective items.
Review Rewards & Cashback
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Share an install photo & review to unlock tier rewards:

🥈 Under $50
3% Off Next Order
🥇 $50+ Orders
5% Direct Cashback
🔥 Tip: Buy a Combo Set to easily hit $50 and unlock 5% Cashback!

💡 How to claim: Email a screenshot of your review to our support team.

$32.95
  • No other fees; this is the final payment price
  • Get rid of your car's malfunctions and start a pleasant driving journey
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If problem with product: Free Returns & Refunds
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
🚛 NOx Sensors & SCR
  • P2200/02Sensor Circuit / Signal Low
  • P229FCircuit Range/Performance
  • P207FReductant Quality Perf.
  • 46F2/4D16BMW SCR Efficiency Faults
🛑 ABS & Wheel Speed
  • C1021Front Wheel Speed Sensor
  • C1025Sensor Signal Erratic
  • C1207ABS Pump Overrun
  • C0561System Disabled

Automotive-Leader Sensors

Vehicle Compatible

Year
Make
Model
2015-2018
Cadillac
Escalade
2016-2017
Chevrolet
Express 2500 / 3500
2016
Chevrolet
Express 4500
2014-2018
Chevrolet
Silverado 1500
2016-2018
Chevrolet
Silverado 2500 / 3500
2015-2018
Chevrolet
Suburban
2018
Chevrolet
Suburban 3500 HD
2015-2018
Chevrolet
Tahoe
2016-2017
GMC
Savana 2500 / 3500
2016
GMC
Savana 4500
2014-2018
GMC
Sierra 1500
2016-2018
GMC
Sierra 2500 / 3500
2015-2018
GMC
Yukon
2015-2018
GMC
Yukon XL

 

Product Specifications

Warranty & Support: 2 Years + 24/7 Technical Support
Item
Specification
Core Part Number
12657188
Interchange: 12661898, 12655678, 12665163, 12643708, 18054, 21075, 234-4974
Position
Exhaust System, Downstream (Post-Catalytic Converter)
Key Parameters
- Type: Heated Oxygen Sensor
- Wire Count: 4 Wires
- Connector Gender: Male
- Connector Shape: Oval
- Thread Diameter: 18 mm
- Total Length: 410 mm
- Mounting Type: Position 2

 

Package Content : 1Pcs 12657188 Oxygen Sensor