Home » Oxygen Sensor Downstream Rear for Lexus GS300, GS350, GS430 3.0L 2005-2007

Oxygen Sensor Downstream Rear for Lexus GS300, GS350, GS430 3.0L 2005-2007

SKU: 1005012117677044-Default Title
Default Title
€38,40
-38% €61,45 €38,40

Upgrade or replace the downstream rear oxygen sensor in your Lexus GS300, GS350, or GS430 with this IWOKPHD unit, precisely engineered for 2005–2007 3.0L engines. As a heated, downstream O2 sensor, it monitors exhaust gas after the catalytic converter and feeds accurate data to the engine control unit (ECU). This enables optimal air-fuel calibration, lowers emissions, and promotes smoother idle and better fuel economy. Designed as a direct OE-style replacement, it fits the 3GRFSE family (GS300, GS350, GS430) with chassis codes GRS190 and GRS195 for reliable, long-lasting performance. A heated sensor ensures dependable readings across temperature ranges, reducing the risk of false fault codes during cold starts.

Compatibility and fitment: For 2005–2006 Lexus GS300 (6-cyl, 3.0L, 3GRFSE; GRS190/GRS195), 2007 Lexus GS350 (6-cyl, 3.0L, 3GRFSE; GRS190/GRS195), and 2006–2007 Lexus GS430 (6-cyl, 3.0L, 3GRFSE; GRS190/GRS195).

Benefits & Tips

  • Improved ECU feedback leads to precise fuel delivery, better fuel economy, and reduced emissions compared to worn or faulty sensors.
  • Heated design provides quicker stabilization of readings after startup, helping avoid drivetrain hesitation and rough idle.
  • Easy, OE-style replacement that maintains proper exhaust sensing without demanding aftermarket modifications—install once and drive with confidence.

Product specifications

  • Brand: IWOKPHD
  • Vehicle compatibility: 2005–2007 Lexus GS300 (3GRFSE; GRS190, GRS195); 2007 GS350; 2006–2007 GS430
  • Sensor type: Piezoelectric
  • Heating type: Heated
  • Sensor position: Downstream rear
  • OEM part number: 89465-30710 (and related references: 89465-30710, 89465-30B40, 234-4806)
  • Measuring range: 234-4806
  • Origin: Mainland China
  • Part numbers / references: 89465-30710, 89465-30B40, 234-4806
  • Warranty: 1 year (Replacement)

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Package includes:

  • 1 x Oxygen Sensor

Warnings / Reminders

  • Please check the product picture and fitment before you order.
  • If you are not sure about compatibility, please contact us before you order; refunds may not be issued for wrong selections.

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