Haval H3 Rear Oxygen Sensor 4-Wire Lambda Probe for H5 H6

Upgrade or replace your vehicle’s rear oxygen sensor with the Haval H3 Rear Oxygen Sensor 4-Wire Lambda Probe from WEIDA AUTO PARTS. This heated, four-wire lambda probe is designed to deliver precise O2 readings for HAVAL H3, H5, and H6, and is compatible with a range of models including Great Wall Deer, Safe Sailor, JAC CS35, and LIFAN X60. The part number 25325359 ensures a precise fit and reliable performance in demanding driving conditions.

Engineered for consistent, accurate readings, this sensor uses a piezoelectric sensing element and a built-in heater to reach operating temperature quickly. That means faster stabilization after cold starts, smoother idle, and better ECU control over fuel trim and emissions. With Delphi-inspired repeatability and carefully matched sensitivity, it helps maintain optimal combustion, lowers emissions, and supports long-term engine health.

Originating from Mainland China, this part comes CE certified for EU markets and includes a two-year warranty, reinforcing InterCyprus’ commitment to quality and reliability. At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• Enjoy faster warm-up and stabilized sensor readings after startup, improving idle quality and fuel efficiency.
• Replace in pairs or with the corresponding upstream sensor to maintain balanced fuel trim and smoother engine performance.
• Ensure proper fitment by verifying compatibility with your Haval model and the listed compatible models before installation.

Product specifications

• Brand: WEIDA AUTO PARTS
• Part Number: 25325359
• Sensor Type: Piezoelectric
• Wires: 4 (4-wire)
• Heated Type: Yes
• Measuring Range/Compatibility: HAVAL H3, H5, H6; Great Wall Deer; Safe Sailor; JAC CS35; LIFAN X60; and other listed models
• Origin: Mainland China
• Repeatability: Delphi
• Sensitivity: WEI DA

Package includes:

• 1 x 4-wire rear oxygen sensor (lambda probe) with part number 25325359

Warnings/Reminders

For best results, have installation performed by a qualified technician. Confirm vehicle compatibility with your specific model year and ECU configuration. After installation, clear any stored trouble codes and verify proper sensor operation with a diagnostic scan.

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