Denso 234-4601 Oxygen Sensor - Downstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4601 Oxygen Sensor - Downstream

Brand Denso 234-4601
Position Downstream
Connector Gender Female
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 33.86
Product line OE Style
Fits Honda and Acura · 18 vehicles

OE style replacement. Precision-built for an exact, first-time fit.

Heated sensor. Helps maintain accurate emissions monitoring.

Threaded mounting. Installs with a secure, direct-fit connection.

Cross-references ACDelco 213-1468, BorgWarner OS1048 and BorgWarner OS1049 for the same application. See all 35.

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Denso OE Style Oxygen Sensor 234-4601

Denso 234-4601 is an OE Style heated oxygen sensor built for specific-fit replacement on select Honda and Acura applications. It is engineered for downstream use and built to match factory-style connector, thread, and harness requirements for a direct replacement.

  • Heated oxygen sensor for downstream placement
  • Specific fit design for direct replacement
  • 4-wire configuration with female connector
  • Threaded mounting type with 0.708 in. thread diameter
  • Wiring harness length: 33.86 in.

OE Style Construction

The Denso OE Style line is built to match original equipment dimensions and electrical requirements for a first-time fit. This sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine operation, fuel economy, and long service life. Part number 234-4601 is a direct replacement choice for drivers servicing a Honda Accord, Honda Prelude, Honda Pilot, Honda S2000, Acura CL, Acura MDX, or Acura TL with the listed downstream application.

This part cross-references Bosch 13176 and NTK 24284 for the same application.

Vehicle Fitment

  • Fits 2003-2004 Honda Pilot, Downstream, OE Style
  • Fits 2000-2003 Honda S2000, Downstream, OE Style
  • Fits 2001-2002 Acura MDX, Downstream, OE Style
  • Fits 1997-1999 Acura CL, Downstream, OE Style
  • Fits 1999 Acura TL, Downstream, Excluding California; OE Style
  • Fits 1998-1999 Honda Accord, Downstream, Excluding California; OE Style
  • Fits 1995-1997 Honda Accord, Downstream, OE Style
  • Fits 1996 Honda Prelude, Downstream, OE Style

Common Repair Uses

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio readings from a worn downstream sensor
  • Reduced fuel efficiency caused by slow sensor response
  • Emissions test failure tied to sensor degradation
  • Rougher engine operation from contaminated or aging sensor elements

Installation Notes

Confirm downstream location, connector style, wire count, and thread diameter before installation. Match the vehicle application exactly, including the California exclusion notes where listed for 1999 Acura TL and 1998-1999 Honda Accord. Inspect the harness routing and connector condition during replacement to help ensure proper fit and signal integrity.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for dimensional accuracy and consistent performance. The OE Style design is intended to deliver the correct part and fit for the listed Honda and Acura applications.

Related reading

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2004HondaPilotDownstreamOE Style
2003HondaPilotDownstreamOE Style
2003HondaS2000DownstreamOE Style
2002AcuraMDXDownstreamOE Style
2002HondaS2000DownstreamOE Style
2001AcuraMDXDownstreamOE Style
2001HondaS2000DownstreamOE Style
2000HondaS2000DownstreamOE Style
1999AcuraCLDownstreamOE Style
1999AcuraTLDownstreamExcluding California.; OE Style
1999HondaAccordDownstreamExcluding California.; OE Style
1998AcuraCLDownstreamOE Style
1998HondaAccordDownstreamExcluding California.; OE Style
1997AcuraCLDownstreamOE Style
1997HondaAccordDownstreamOE Style
1996HondaAccordDownstreamOE Style
1996HondaPreludeDownstreamOE Style
1995HondaAccordDownstreamOE Style
Directly replaces or cross-references 35 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-1468BorgWarner — OS1048BorgWarner — OS1049BorgWarner — OS1052BorgWarner — OS1092BorgWarner — OS1660BorgWarner — OS1671BorgWarner — OS1954Bosch — 13176Bosch — 13487Bosch — 15403Delphi — ES20063Delphi — ES20136Honda — 36532P0AA01Honda — 36532P0GA01Honda — 36532P0GA02Honda — 36532P6WA01Honda — 36532P8AA01Honda — 36532P8CA01Honda — 36532P8CA21Honda — 36532P13A01Honda — 36532PCXA01Honda — 36532PGKA02NTK — 24284NTK — 24287NTK — 24603Standard Ignition — SG342Standard Ignition — SG525Standard Ignition — SG527Standard Ignition — SG676Standard Ignition — SG1859Walker Products — 250-24121Walker Products — 250-24601Walker Products — 350-34119Walker Products — 350-34528