Denso 234-4619 Oxygen Sensor - Downstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4619 Oxygen Sensor - Downstream

Brand Denso 234-4619
Position Downstream
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 31.50
Product line OE Style
Fits Lexus · 4 vehicles

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

Heated sensor. Helps deliver faster operation and consistent performance.

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

Cross-references ACDelco 213-1445, BorgWarner OS1528 and Bosch 13912 for the same application. See all 10.

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Denso 234-4619 Oxygen Sensor for Lexus SC400

Denso 234-4619 is an OE-style heated oxygen sensor built for precise replacement and consistent signal performance. It is a specific-fit sensor for 1992-1995 Lexus SC400 downstream applications, making it a direct choice for drivers replacing a worn sensor on the Lexus SC400.

Key Features

  • OE Style replacement from Denso
  • Heated oxygen sensor with 4-wire design
  • Specific fit for downstream placement
  • 31.50 in. wiring harness length
  • Threaded mounting with 0.708 in. thread diameter
  • Male connector for direct vehicle connection

Built for OE-Style Replacement

Denso 234-4619 is manufactured and tested to OE standards for accurate fit and dependable operation. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and efficient exhaust feedback. This OE-style design is a strong match for 1992-1995 Lexus SC400 downstream service where exact fit and correct sensor response matter. This part cross-references Bosch 13912 and NTK 24561 for the same application.

Common Reasons to Replace

  • Check engine light related to oxygen sensor performance
  • Rough idle or inconsistent air-fuel control
  • Reduced fuel economy from an aging downstream sensor
  • Slow or inaccurate exhaust oxygen readings
  • Failed emissions inspection tied to sensor output

Installation Notes

Confirm downstream placement before installation and match the threaded mounting style, connector gender, wire count, and harness length to the original sensor. For best results, inspect the connector and wiring path for heat damage or corrosion before connecting the new sensor. Denso 234-4619 is a direct-fit replacement for 1992-1995 Lexus SC400 downstream applications, and the part number 234-4619 should be verified against the removed sensor before installation.

Quality Assurance

Denso builds this OE Style oxygen sensor to strict original-equipment standards and tests each component for fit and function. The design focuses on first-time fitment and long-term sensor protection for reliable service in the Lexus SC400.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1995LexusSC400DownstreamOE Style
1994LexusSC400DownstreamOE Style
1993LexusSC400DownstreamOE Style
1992LexusSC400DownstreamOE Style
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 213-1445BorgWarner — OS1528Bosch — 13912Bosch — 13914NTK — 24561Standard Ignition — SG774Toyota — 8946524060Toyota — 8946524120Walker Products — 250-24172Walker Products — 350-34431