Denso
OE Style

Denso 234-4636 Oxygen Sensor - Downstream or Upstream

Brand Denso 234-4636
Position Upstream and Downstream
Wiring Harness Length 22.83
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Connector Gender Female
Thread Diameter 0.708
Mounting Type Threaded
Product line OE Style
Fits Dodge and Mitsubishi · 7 vehicles

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

Heated sensor. Helps deliver faster response and stable operation.

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

Cross-references ACDelco 213-2985, BorgWarner OS1118 and Bosch 13460 for the same application. See all 12.

$74.44Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $74.44
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Denso OE Style Oxygen Sensor 234-4636

Denso 234-4636 is an OE-style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for specific applications on Mitsubishi Eclipse, Mitsubishi Mighty Max, and Dodge Ram 50 models, with coverage for upstream and downstream positions where listed.

Key Features

  • Heated oxygen sensor for faster operating response
  • Specific-fit design for direct replacement applications
  • 4-wire configuration with female connector
  • Threaded mounting with 0.708 in. thread diameter
  • 22.83 in. wiring harness length
  • OE-style construction for accurate fit and function
  • Denso aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

OE-Style Design and Application

The Denso OE Style line is built to match original equipment standards for fit, form, and performance. This oxygen sensor is precision built for the listed vehicles, including 1998-1999 Mitsubishi Eclipse downstream applications, 1996 Mitsubishi Mighty Max upstream applications, 1993-1995 Mitsubishi Mighty Max upstream applications, and 1993 Dodge Ram 50 upstream applications. The part number 234-4636 is also cross-referenced to ACDelco 213-2985 and NTK 23519 for the same application.

What This Oxygen Sensor Helps Address

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel mixture readings
  • Reduced fuel economy from a worn sensor
  • Slow sensor response during closed-loop operation
  • Emissions test failures tied to sensor degradation

Installation Notes and Tips

Verify the sensor position before ordering, since this part is listed for both upstream and downstream locations depending on vehicle application. Confirm the threaded mounting style, 4-wire connector, and harness length against the original sensor before installation. For best results, compare the existing connector and routing on your Mitsubishi Eclipse, Mitsubishi Mighty Max, or Dodge Ram 50 to ensure the replacement matches the OE layout.

Quality Assurance

Denso manufactures and tests these oxygen sensors to OE standards for consistent fit and performance. The design includes contamination protection for the sensing element, supporting long service life in demanding exhaust environments.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionPositionNotes
1999MitsubishiEclipse—DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1998MitsubishiEclipse—DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1996MitsubishiMighty MaxAutomaticUpstreamOE Style
1995MitsubishiMighty MaxAutomaticUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1994MitsubishiMighty MaxAutomaticUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1993DodgeRam 50AutomaticUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
1993MitsubishiMighty MaxAutomaticUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-2985BorgWarner — OS1118Bosch — 13460Bosch — 15068Chrysler — MD192072Mitsubishi — MD192072Mitsubishi — MD335040NTK — 23519Standard Ignition — SG695Standard Ignition — SG1680Walker Products — 250-24237Walker Products — 350-34398