HomeEmission Control > SensorsDenso 234-4344 Oxygen Sensor - Upstream Left
Part #: 234-4344

Denso 234-4344 Oxygen Sensor - Upstream Left

OE Style, Upstream Left
⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$52.27Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream Left
🚗Fitment: Chevrolet and GMC, Astro and Safari
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Denso OE Style Oxygen Sensor 234-4344

The Denso OE Style Oxygen Sensor 234-4344 is designed specifically for Chevrolet Astro and GMC Safari models. This heated oxygen sensor features a 12.13-inch wiring harness and a threaded mounting type, ensuring precise fitment and reliable performance in emission control systems.

  • Heated oxygen sensor for accurate emissions monitoring
  • Specific fit for Chevrolet Astro and GMC Safari vehicles
  • 12.13-inch wiring harness length for optimal installation
  • Threaded mounting type with 0.708-inch thread diameter
  • Four-wire configuration with female connector

Detailed Product Description

The Denso 234-4344 oxygen sensor is engineered to meet the exact specifications of Chevrolet Astro and GMC Safari models, providing a direct replacement for the original equipment. Its heated sensor type allows for quicker activation and improved fuel efficiency by accurately measuring oxygen levels in the exhaust gases. The 12.13-inch wiring harness length offers sufficient reach for straightforward installation, while the four-wire design supports both sensor heating and signal transmission. The female connector and threaded mounting type with a 0.708-inch diameter ensure secure and reliable attachment to the vehicle’s exhaust system.

OE Style Product Line Information

The Denso OE Style product line focuses on delivering parts that closely match original equipment specifications. This oxygen sensor from the OE Style line is designed to provide the same fit, form, and function as the factory-installed sensor, making it a suitable choice for maintaining the emission control integrity of Chevrolet Astro and GMC Safari vehicles.

Common Applications and Issues Addressed

  • Restores proper oxygen sensing for accurate air-fuel mixture control
  • Helps resolve rough idling and poor engine performance
  • Reduces emissions and prevents check engine light triggers
  • Improves fuel economy by ensuring efficient combustion
  • Eliminates sensor-related diagnostic trouble codes (DTCs)

Installation Notes and Tips

When installing the Denso 234-4344 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. The 12.13-inch harness length provides flexibility during installation, but verify connector compatibility before securing. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The OE Style 234-4344 sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the original parts provider or vehicle manufacturer.

BrandDenso
Part Number234-4344
PositionOE Style, Upstream Left
Connector GenderFemale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length12.13

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2005ChevroletAstroUpstream LeftOE Style
2005GMCSafariUpstream LeftOE Style
2004ChevroletAstroUpstream LeftOE Style
2004GMCSafariUpstream LeftOE Style
2003ChevroletAstroUpstream LeftOE Style
2003GMCSafariUpstream LeftOE 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:

213-1531213-2830

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