Denso 234-5728 Air / Fuel Ratio Sensor - Upstream or Upstream Rear

OE-Style Air/Fuel Ratio Sensor

Denso 234-5728 is an OE-style wide-band air/fuel ratio sensor built for direct replacement on select Honda applications. It is a specific-fit sensor with a 5-wire design and an 11.02-inch wiring harness length for a precise match to the original setup.

For drivers searching for a Honda Odyssey upstream air/fuel ratio sensor, Honda Passport upstream sensor, or Honda Ridgeline upstream replacement, this Denso part number 234-5728 provides the correct fitment for the listed vehicles and positions.

Key Features

• Wide-band air/fuel ratio sensor for accurate exhaust feedback
• Specific-fit design for direct replacement on listed Honda models
• 5-wire configuration
• 11.02-inch wiring harness length
• Standard replacement grade
• OE-style construction for factory-style fit and function

Product Details

Denso’s Air / Fuel Ratio Sensor - OE Style line is built and tested to OE standards, with precision manufacturing aimed at exact replacement fitment. The Denso 234-5728 is engineered as a direct-fit sensor for upstream locations on select Honda Odyssey, Passport, Ridgeline, and Pilot models. This part cross-references Gates 27073 and 27074 for the same application.

Compatible With: 2018-2024 Honda Odyssey, upstream; 2020-2024 Honda Passport, upstream; 2020-2024 Honda Ridgeline, upstream; 2019-2021 Honda Pilot, upstream; 2020 Honda Pilot, upstream rear; 2019 Honda Passport, upstream rear.

Common Replacement Reasons

• Check engine light related to air/fuel ratio sensor performance
• Rough idle or inconsistent engine operation from faulty sensor feedback
• Fuel trim or mixture control issues caused by a worn upstream sensor
• Emissions test failure tied to sensor response problems
• Restoring proper exhaust monitoring on Honda Odyssey, Passport, Ridgeline, or Pilot

Installation Notes

Confirm the sensor position before ordering, since this part is listed for upstream and upstream rear applications depending on vehicle and engine configuration. Match the connector, wire count, and harness length to the original sensor before installation. Use the vehicle’s service information for torque and routing details, and inspect the exhaust threads and wiring path during replacement.

Quality Assurance

Denso manufactures and tests this sensor to OE standards for consistent replacement quality and first-time fit on the listed applications. The 234-5728 is a direct-fit, OE-style sensor intended to match factory specifications for the covered Honda models.