Denso 234-3112 Oxygen Sensor - Upstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-3112 Oxygen Sensor - Upstream

Brand Denso 234-3112
Position Upstream
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 3
Wiring Harness Length 8.66
Product line OE Style
Fits Nissan · 2 vehicles

OE-style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps support faster operation and efficient engine performance.

Threaded mounting. Specific-fit design with a male connector and 3-wire harness.

Cross-references ACDelco 213-2938, BorgWarner OS2169 and Bosch 15971 for the same application. See all 10.

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Denso OE Style Oxygen Sensor for Nissan Altima

Denso 234-3112 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for 2000-2001 Nissan Altima upstream applications, with fitment listed for 2000 Nissan Altima upstream and 2001 Nissan Altima upstream to 12/00.

Key Features

  • Heated oxygen sensor with specific fitment
  • 3-wire design with male connector
  • Threaded mounting type for direct replacement
  • 8.66-inch wiring harness length
  • 0.708-inch thread diameter
  • OE Style construction for accurate sensor replacement

OE Style Design and Application

The Denso OE Style line focuses on direct-fit replacement parts built to OE standards. For this Denso 234-3112 oxygen sensor, the goal is proper sensor response, correct connector fit, and installation that matches the original equipment layout on the Nissan Altima. Denso also uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and fuel economy.

This part cross-references Bosch 15971 and NTK 24527 for the same application.

What This Oxygen Sensor Helps Address

  • Check engine light caused by upstream oxygen sensor failure
  • Incorrect air-fuel mixture readings
  • Reduced fuel economy from inaccurate exhaust feedback
  • Rough idle or hesitation tied to sensor signal issues
  • Emissions test failures related to oxygen sensor performance

Installation Notes and Tips

Verify upstream location before ordering and confirm connector style, thread diameter, and harness length against the original sensor. This Denso 234-3112 is a specific-fit, threaded sensor for 2000-2001 Nissan Altima upstream applications, including 2001 Nissan Altima upstream to 12/00. Use proper exhaust sensor removal tools and inspect the harness routing before installation.

Quality Assurance

Denso manufactures and tests these oxygen sensors to OE standards for consistent fit and function. The 234-3112 is built as a direct replacement part for Nissan Altima applications, with precision construction intended to match original equipment requirements.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2001NissanAltimaUpstreamTo 12/00; OE Style
2000NissanAltimaUpstreamOE Style
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-2938BorgWarner — OS2169Bosch — 15971Datsun/Nissan — 226900Z800Datsun/Nissan — 226900Z801Delphi — ES10377NTK — 24527Standard Ignition — SG1336Walker Products — 250-23121Walker Products — 350-33076