HomeEmission Control > SensorsDenso 234-9030 Air / Fuel Ratio Sensor - Upstream
Part #: 234-9030

Denso 234-9030 Air / Fuel Ratio Sensor - Upstream

OE Style, Upstream
10 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$172.06Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
OE Style, Upstream
Fitment: Jaguar, S-Type, Super V8, Vanden Plas, XJ8, and XJR
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-9030 is designed specifically for select Jaguar models, including the S-Type, Super V8, Vanden Plas, XJ8, and XJR. This heated sensor ensures accurate air and fuel mixture readings to support optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • Specific fitment for Jaguar S-Type, Super V8, Vanden Plas, XJ8, and XJR
  • 11.81-inch wiring harness length for precise installation
  • Four-wire configuration with female connector
  • Thread diameter of 0.711 inches for secure mounting
  • Regular grade type for reliable operation

Detailed Product Description

This Denso OE Style Air/Fuel Ratio Sensor (part number 234-9030) is engineered to meet the exact specifications of Jaguar vehicles such as the S-Type, Super V8, Vanden Plas, XJ8, and XJR. Featuring a heated sensor element, it provides quicker warm-up times and more accurate air/fuel mixture readings under various operating conditions. The sensor includes a female connector and four wires, facilitating straightforward integration with the vehicle’s existing wiring harness. With an 11.81-inch wiring harness length and a 0.711-inch thread diameter, this sensor is designed for a precise and secure fit, ensuring consistent performance and durability.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering replacement parts that closely match original equipment specifications. This ensures compatibility and performance that align with factory standards. The 234-9030 air/fuel ratio sensor is part of this line, providing Jaguar owners with a sensor that maintains the integrity of their vehicle’s emission control system without compromise.

Common Applications and Issues Addressed

  • Restores accurate air/fuel mixture readings for improved engine efficiency
  • Helps resolve rough idling or engine hesitation caused by faulty sensors
  • Supports emission control compliance by maintaining proper sensor function
  • Prevents check engine light triggers related to air/fuel ratio sensor faults
  • Reduces potential drivability problems linked to sensor degradation

Installation Notes and Tips

When installing the Denso 234-9030 sensor, ensure the vehicle is cool to avoid injury. Use the correct tools to avoid damaging the 0.711-inch threaded sensor body. Verify the four-wire female connector is securely attached to the vehicle’s wiring harness. Follow manufacturer torque specifications to prevent sensor damage and ensure a proper seal. It is recommended to inspect the wiring harness for any wear or damage before installation.

Quality Assurance and Warranty

Denso’s OE Style sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. This sensor is designed to provide consistent operation within the emission control system of compatible Jaguar models.

BrandDenso
Part Number234-9030
PositionOE Style, Upstream
Connector GenderFemale
Grade TypeRegular
Sensor TypeHeated
Thread Diameter0.711
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length11.81

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
2005JaguarS-TypeUpstreamOE Style
2005JaguarSuper V8UpstreamOE Style
2005JaguarVanden PlasUpstreamOE Style
2005JaguarXJ8UpstreamOE Style
2005JaguarXJRUpstreamOE Style
2004JaguarS-TypeUpstreamOE Style
2004JaguarVanden PlasUpstreamOE Style
2004JaguarXJ8UpstreamOE Style
2004JaguarXJRUpstreamOE Style
2003JaguarS-TypeUpstreamOE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

213-2855

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.