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Part Number

AP4-345
Sale Price

$21.07

In Stock (6)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The APW Warehouse Supplies AP4-345 is a direct-fit replacement oxygen sensor designed to restore proper air-fuel mixture monitoring in compatible vehicles. The oxygen sensor — also referred to as an O2 sensor or lambda sensor — communicates exhaust gas oxygen levels to the engine control unit (ECU), enabling precise fuel delivery adjustments that optimize combustion efficiency and reduce harmful emissions.

Key Features:

  • Direct OE-style replacement designed to match original sensor form, fit, and function
  • Monitors exhaust oxygen content to support accurate air-fuel ratio management
  • Helps maintain fuel efficiency and reduce excess hydrocarbon emissions
  • Designed to clear oxygen sensor-related diagnostic trouble codes (DTCs) such as P0130–P0167 series
  • Threaded fitting for straightforward installation using standard O2 sensor socket
  • Compatible with upstream (pre-catalytic converter) or downstream (post-catalytic converter) positions depending on application

Replacing a faulty oxygen sensor promptly can prevent catalytic converter damage, improve fuel economy, and ensure your vehicle passes emissions inspections. The AP4-345 is engineered to meet or exceed OEM specifications for reliable, long-term performance.

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Great prices & fast shipping.

Great price. Very happy with order. Will buy from them again.

Overall very good, fast service. Will shop there again.

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