O2 Sensor Lambda Air Fuel Ratio for Chevrolet Astro and GMC Safari 2003-2005, Part 2344345 Compatible

Upgrade your Chevrolet Astro or GMC Safari with the IWOKPHD O2 Sensor (Lambda) – a heating-type, piezoelectric oxygen sensor designed to deliver precise air-fuel ratio readings for 2003-2005 models. This sensor replacement helps restore optimal engine performance, steady idle, and efficient fuel use by providing accurate feedback to your vehicle’s ECU, reducing emissions and preventing downstream catalyst damage.

Main Description

Designed to fit 2003-2005 Chevy Astro and GMC Safari models, this O2 sensor aligns with OEM numbers 234-4345, 2344345, and 234 4345, with additional compatible codes 12570794 and 12589549. The heating-type, piezoelectric sensor ensures faster warm-up and stable readings across varying temperatures, which translates to quicker engine management decisions and better fuel economy. Built with robust materials and sourced from mainland China, it’s a reliable, long-lasting replacement that restores steady air-fuel calibration and smooth engine response. To ensure compatibility, check the part numbers listed and verify against your original sensor before ordering.

Key benefits include:

• Improved fuel efficiency through accurate air-fuel ratio sensing.
• Reduced exhaust emissions and smoother engine performance.
• Faster sensor warm-up for immediate ECU feedback and quicker fault resolution.

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

Language support: Please note that language availability is determined by the seller; contact us for current language options if you need assistance in a specific language.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• Use this sensor to restore proper fuel trim in vehicles showing symptoms of a failing O2 sensor, such as harsh idling, poor acceleration, or fluctuating fuel economy.
• Replace in pairs when you notice multiple faulty sensors for balanced exhaust readings and optimal catalyst protection.
• Record the OEM part numbers (234-4345 family) before ordering to ensure you’re selecting the correct heating-type O2 sensor for your 2003-2005 Astro/Safari.

Product specifications

• Brand Name: IWOKPHD
• Part Numbers / OEM No.: 234-4345, 2344345, 234 4345, 12570794, 12589549
• Sensor Type: Piezoelectric
• Type: Heating Type
• Application: For CHEVROLET ASTRO 2003-2005; For GMC SAFARI 2003-2005
• Origin: Mainland China
• Electronic: No
• Sensitivity: 12570794, 12589549

Package includes:

• 1 pcs

Warnings / Reminders

Please check the picture and part number carefully to ensure you bought the right part for your car. If you cannot confirm which item fits your car, please send the Part Number or the Original product photos to us to confirm before ordering. The only way to be 100% sure the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.

Warranty, Shipping & Support

WARRANTY: 2 years
Warranty Type: Replacement Warranty
Any questions will be replied within 24 hours except weekends and holidays. We will respond as soon as we receive your message.

All items will be send out within 2 working days after the payment is confirmed. Please ensure your shipping address is correct before you pay. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are buyer's responsibility. Shipping times are estimates and may vary with seasons or weather.

Problems with the part are best resolved through clear communication. If the part is damaged in transit or faulty, please send a problem description or photos to our Customer Service and Technical Department so we can resolve it promptly. Your positive feedback is appreciated—please consider leaving 5 stars if you’re satisfied with the service.

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

Providing quality and trusted service since 2002 at intercyprus.com.