Denso 234-5062 Air / Fuel Ratio Sensor - Upstream

OE-Style Air/Fuel Ratio Sensor

Denso 234-5062 is an OE Style heated air/fuel ratio sensor built for exact replacement and first-time fit. It is engineered for precise signal control in the exhaust stream, helping maintain proper fuel delivery on supported Nissan and Suzuki applications.

Compatible with 2005-2012 Nissan Frontier upstream and 2009 Suzuki Equator upstream, this Denso air/fuel ratio sensor is a direct-fit replacement for vehicles that require a specific-fit, 5-wire heated sensor. The 14.57-inch wiring harness length and male connector support a clean OE-style installation.

Key Features

• OE Style replacement air/fuel ratio sensor from Denso
• Heated sensor design for faster operating response
• Specific fit for direct replacement on listed applications
• 5-wire configuration with male connector
• 14.57-inch wiring harness length
• Thread diameter: 0.711
• Built and tested to OE standards for consistent fit and function

Product Details

Denso 234-5062 is part of the OE Style line, which focuses on direct replacement parts built to match original equipment fitment and connection points. For drivers searching for an upstream air/fuel ratio sensor for a 2005-2012 Nissan Frontier or a 2009 Suzuki Equator, this sensor provides the correct configuration for those factory-style applications. This part cross-references ACDelco 213-3896 and Bosch 17287 for the same application.

As an emission control sensor, it helps the engine management system monitor exhaust oxygen content and adjust air-fuel mixture accordingly. That makes it a practical replacement when the original sensor has aged, set a fault code, or is no longer responding accurately. The Denso 234-5062 part number is also commonly used when searching for an OE-style upstream sensor for Nissan Frontier and Suzuki Equator models.

Common Issues This Part May Address

• Check engine light related to air/fuel ratio sensor performance
• Rough idle or unstable fuel mixture control
• Reduced fuel economy caused by inaccurate sensor readings
• Emission test failure tied to upstream sensor faults
• Slow sensor response or heater circuit-related trouble codes

Installation Notes and Tips

Verify the upstream sensor location before ordering, since this part is listed for upstream applications only. Confirm connector style, wire count, and thread diameter against the original sensor before installation. For best results, inspect the harness routing and connector condition during replacement, and clear diagnostic trouble codes after installation if required by the vehicle.

Quality Assurance

Denso manufactures and tests this sensor to strict OE standards, with precision-built components intended to match original fit and function. The OE Style line is focused on direct replacement accuracy, helping ensure the right part and the right fit the first time.