Homeโ€บ Emission Control > Sensorsโ€บ Denso 234-4019 Oxygen Sensor - Upstream
Part #: 234-4019

Denso 234-4019 Oxygen Sensor - Upstream

OE Style, Upstream
203 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement โ€” Bolt-on fit, no modifications needed
OE Style, Upstream
Fitment: Chevrolet and GMC, Express 1500, Express 2500, Express 3500, Savana 1500, Savana 2500, Savana 3500, C2500, C3500, K2500, K3500, Silverado 2500, Suburban 2500, Sierra 2500, Yukon XL 2500, C1500, C1500 Suburban, C2500 Suburban, K1500, K1500 Suburban, K2500 Suburban, P30, Tahoe, P3500, Yukon, G30, and G3500
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Overview of the Denso OE Style Oxygen Sensor 234-4019

The Denso OE Style Oxygen Sensor 234-4019 is designed specifically for select Chevrolet and GMC models, including the Silverado 2500 and Tahoe. This heated oxygen sensor features a threaded mounting type and a 15.35-inch wiring harness, ensuring precise fitment and reliable performance.

  • Heated oxygen sensor for accurate emissions control
  • Specific fit for Chevrolet and GMC trucks and SUVs
  • Threaded mounting with 0.708-inch thread diameter
  • 15.35-inch wiring harness length with 4 wires
  • Male connector for secure electrical connection

Detailed Product Features and Specifications

The Denso 234-4019 oxygen sensor is a heated sensor designed to provide accurate air-fuel mixture readings to the engine control unit. It features a 15.35-inch wiring harness with four wires, allowing for proper electrical connections and sensor heating. The sensor uses a threaded mounting type with a 0.708-inch thread diameter, ensuring a secure and precise installation. The male connector design matches the factory wiring harness for a direct replacement without modifications.

This oxygen sensor is a specific fit for a range of Chevrolet and GMC vehicles, including the Chevrolet C1500, Silverado 2500, Tahoe, and GMC Sierra 2500, Yukon, and Savana models. The sensor is engineered to meet OEM specifications, providing reliable emissions control and engine performance.

About the Denso OE Style Product Line

The Denso OE Style product line focuses on delivering parts that closely match original equipment specifications. The OE Style oxygen sensors are designed to provide a direct fit and function, making them suitable replacements for factory-installed sensors. This ensures compatibility and performance consistency for vehicles like the Chevrolet Silverado 2500 and GMC Yukon XL 2500.

Common Applications and Issues Addressed

  • Replacement for faulty or failing oxygen sensors in Chevrolet and GMC trucks
  • Resolves engine performance issues related to incorrect air-fuel mixture readings
  • Helps correct rough idling and poor fuel economy
  • Addresses emissions control system malfunctions and check engine light triggers
  • Improves overall engine efficiency and reduces harmful exhaust emissions

Installation Notes and Tips

When installing the Denso 234-4019 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the wiring harness length and connector gender match the vehicleโ€™s factory harness. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and OEM specifications. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports reliable vehicle operation.

BrandDenso
Part Number234-4019
PositionOE Style, Upstream
Connector GenderMale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length15.35

This part fits 203 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2002ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2002ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2002ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2002GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2002GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2002GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2001ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2001ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2001ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2001GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2001GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2001GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2000ChevroletC2500UpstreamOE Style
2000ChevroletC3500UpstreamOE Style
2000ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2000ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2000ChevroletExpress 3500UpstreamOE Style
2000ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2000ChevroletK2500UpstreamOE Style
2000ChevroletK3500UpstreamOE Style
2000ChevroletSilverado 2500UpstreamOE Style
2000ChevroletSuburban 2500UpstreamOE Style
2000GMCC2500UpstreamOE Style
2000GMCC3500UpstreamOE Style
2000GMCK2500UpstreamOE Style
2000GMCK3500UpstreamOE Style
2000GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
2000GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
2000GMCSavana 3500UpstreamOE Style
2000GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
2000GMCSierra 2500UpstreamOE Style
2000GMCYukon XL 2500UpstreamOE Style
1999ChevroletC1500UpstreamOE Style
1999ChevroletC1500 SuburbanUpstreamOE Style
1999ChevroletC2500UpstreamOE Style
1999ChevroletC2500 SuburbanUpstreamOE Style
1999ChevroletC3500UpstreamOE Style
1999ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1999ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1999ChevroletExpress 3500UpstreamOE Style
1999ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1999ChevroletK1500UpstreamOE Style
1999ChevroletK1500 SuburbanUpstreamOE Style
1999ChevroletK2500UpstreamOE Style
1999ChevroletK2500 SuburbanUpstreamOE Style
1999ChevroletK3500UpstreamOE Style
1999ChevroletP30UpstreamOE Style
1999ChevroletSilverado 2500UpstreamOE Style
1999ChevroletTahoeUpstreamOE Style
1999GMCC1500UpstreamOE Style
1999GMCC1500 SuburbanUpstreamOE Style
1999GMCC2500UpstreamOE Style
1999GMCC2500 SuburbanUpstreamOE Style
1999GMCC3500UpstreamOE Style
1999GMCK1500UpstreamOE Style
1999GMCK1500 SuburbanUpstreamOE Style
1999GMCK2500UpstreamOE Style
1999GMCK2500 SuburbanUpstreamOE Style
1999GMCK3500UpstreamOE Style
1999GMCP3500UpstreamOE Style
1999GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1999GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1999GMCSavana 3500UpstreamOE Style
1999GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1999GMCSierra 2500UpstreamOE Style
1998ChevroletC1500ManualUpstreamOE Style
1998ChevroletC1500UpstreamOE Style
1998ChevroletC1500 SuburbanUpstreamOE Style
1998ChevroletC2500UpstreamOE Style
1998ChevroletC2500ManualUpstreamOE Style
1998ChevroletC2500 SuburbanUpstreamOE Style
1998ChevroletC3500UpstreamOE Style
1998ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1998ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1998ChevroletExpress 3500UpstreamOE Style
1998ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1998ChevroletK1500ManualUpstreamOE Style
1998ChevroletK1500UpstreamOE Style
1998ChevroletK1500 SuburbanUpstreamOE Style
1998ChevroletK2500UpstreamOE Style
1998ChevroletK2500ManualUpstreamOE Style
1998ChevroletK2500 SuburbanUpstreamOE Style
1998ChevroletK3500UpstreamOE Style
1998ChevroletP30UpstreamOE Style
1998ChevroletTahoeUpstreamOE Style
1998GMCC1500ManualUpstreamOE Style
1998GMCC1500UpstreamOE Style
1998GMCC1500 SuburbanUpstreamOE Style
1998GMCC2500UpstreamOE Style
1998GMCC2500ManualUpstreamOE Style
1998GMCC2500 SuburbanUpstreamOE Style
1998GMCC3500UpstreamOE Style
1998GMCK1500ManualUpstreamOE Style
1998GMCK1500UpstreamOE Style
1998GMCK1500 SuburbanUpstreamOE Style
1998GMCK2500UpstreamOE Style
1998GMCK2500ManualUpstreamOE Style
1998GMCK2500 SuburbanUpstreamOE Style
1998GMCK3500UpstreamOE Style
1998GMCP3500UpstreamOE Style
1998GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1998GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1998GMCSavana 3500UpstreamOE Style
1998GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1998GMCYukonUpstreamOE Style
1997ChevroletC1500ManualUpstreamOE Style
1997ChevroletC1500UpstreamOE Style
1997ChevroletC1500UpstreamUpstream Sensor in Manifold; OE Style
1997ChevroletC1500 SuburbanUpstreamOE Style
1997ChevroletC2500UpstreamOE Style
1997ChevroletC2500ManualUpstreamOE Style
1997ChevroletC2500ManualUpstreamLoc. Manifold; OE Style
1997ChevroletC2500 SuburbanUpstreamOE Style
1997ChevroletC3500UpstreamOE Style
1997ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1997ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1997ChevroletExpress 3500UpstreamOE Style
1997ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1997ChevroletK1500ManualUpstreamOE Style
1997ChevroletK1500UpstreamOE Style
1997ChevroletK1500UpstreamUpstream Sensor in Manifold; OE Style
1997ChevroletK1500 SuburbanUpstreamOE Style
1997ChevroletK2500UpstreamOE Style
1997ChevroletK2500ManualUpstreamOE Style
1997ChevroletK2500 SuburbanUpstreamOE Style
1997ChevroletK3500UpstreamOE Style
1997ChevroletP30UpstreamOE Style
1997ChevroletTahoeUpstreamOE Style
1997GMCC1500ManualUpstreamOE Style
1997GMCC1500UpstreamOE Style
1997GMCC1500ManualUpstreamLoc. Manifold; OE Style
1997GMCC1500 SuburbanUpstreamOE Style
1997GMCC2500UpstreamOE Style
1997GMCC2500ManualUpstreamOE Style
1997GMCC2500ManualUpstreamLoc. Manifold; OE Style
1997GMCC2500 SuburbanUpstreamOE Style
1997GMCC3500UpstreamOE Style
1997GMCK1500ManualUpstreamOE Style
1997GMCK1500UpstreamOE Style
1997GMCK1500ManualUpstreamLoc. Manifold; OE Style
1997GMCK1500 SuburbanUpstreamOE Style
1997GMCK2500UpstreamOE Style
1997GMCK2500ManualUpstreamOE Style
1997GMCK2500 SuburbanUpstreamOE Style
1997GMCK3500UpstreamOE Style
1997GMCP3500UpstreamOE Style
1997GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1997GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1997GMCSavana 3500UpstreamOE Style
1997GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1997GMCYukonUpstreamOE Style
1996ChevroletC1500ManualUpstreamOE Style
1996ChevroletC1500UpstreamOE Style
1996ChevroletC1500ManualUpstreamLoc. Manifold; OE Style
1996ChevroletC1500 SuburbanUpstreamOE Style
1996ChevroletC2500UpstreamOE Style
1996ChevroletC2500ManualUpstreamOE Style
1996ChevroletC2500UpstreamLoc. Manifold; OE Style
1996ChevroletC2500 SuburbanUpstreamOE Style
1996ChevroletC3500UpstreamOE Style
1996ChevroletExpress 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1996ChevroletExpress 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1996ChevroletExpress 3500UpstreamOE Style
1996ChevroletExpress 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1996ChevroletG30UpstreamOE Style
1996ChevroletG30UpstreamGVW Over 8,500 Lbs.; OE Style
1996ChevroletK1500ManualUpstreamOE Style
1996ChevroletK1500UpstreamOE Style
1996ChevroletK1500UpstreamUpstream Sensor in Manifold; OE Style
1996ChevroletK1500 SuburbanUpstreamOE Style
1996ChevroletK2500UpstreamOE Style
1996ChevroletK2500ManualUpstreamOE Style
1996ChevroletK2500 SuburbanUpstreamOE Style
1996ChevroletK3500UpstreamOE Style
1996ChevroletP30UpstreamOE Style
1996ChevroletTahoeManualUpstreamOE Style
1996ChevroletTahoeUpstreamOE Style
1996GMCC1500ManualUpstreamOE Style
1996GMCC1500UpstreamOE Style
1996GMCC1500ManualUpstreamLoc. Manifold; OE Style
1996GMCC1500 SuburbanUpstreamOE Style
1996GMCC2500UpstreamOE Style
1996GMCC2500ManualUpstreamOE Style
1996GMCC2500ManualUpstreamLoc. Manifold; OE Style
1996GMCC2500 SuburbanUpstreamOE Style
1996GMCC3500UpstreamOE Style
1996GMCG3500UpstreamOE Style
1996GMCG3500UpstreamGVW Over 8,500 Lbs.; OE Style
1996GMCK1500ManualUpstreamOE Style
1996GMCK1500UpstreamOE Style
1996GMCK1500ManualUpstreamLoc. Manifold; OE Style
1996GMCK1500 SuburbanUpstreamOE Style
1996GMCK2500UpstreamOE Style
1996GMCK2500ManualUpstreamOE Style
1996GMCK2500 SuburbanUpstreamOE Style
1996GMCK3500UpstreamOE Style
1996GMCP3500UpstreamOE Style
1996GMCSavana 1500UpstreamGVW Over 8,500 Lbs.; OE Style
1996GMCSavana 2500UpstreamGVW Over 8,500 Lbs.; OE Style
1996GMCSavana 3500UpstreamOE Style
1996GMCSavana 3500UpstreamGVW Over 8,500 Lbs.; OE Style
1996GMCYukonManualUpstreamOE Style
1996GMCYukonUpstreamOE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

AFS136AFS93

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.