O2 Oxygen Sensors Upstream Downstream For 03-07 Honda Accord 234-9040 234-4797
 

2PCS Upstream & Downstream Oxygen O2 Sensor Kit

OE Part Number: 234-9040 (Front AFR) | 234-4797 (Rear O2)

1 YEAR LIMITED WARRANTY | Direct Replacement O2 Sensor Full Set

Vehicle Compatibility

Honda Accord 2003 2004 2005 2006 2007 2.4L 4-Cylinder Engine
All US Trims: DX, LX, EX, SE, EX-L Sedan & Coupe
1 x Upstream Air Fuel Ratio Sensor 234-9040
1 x Downstream Catalyst Monitor O2 Sensor 234-4797

Core Product Features

1:1 OEM Plug & Play Connector, No Wiring Modifications
High-precision ceramic chip delivers stable air-fuel signal
Heavy-duty stainless steel housing anti-high temp corrosion
Clears P0131 P0132 P0137 P0138 engine trouble codes
Boost fuel economy and reduce toxic exhaust emissions
Passes smog test and extends catalytic converter lifespan

Fixes Common Failed O2 Sensor Symptoms

  • Check engine light stays on due to malfunctioning oxygen sensor
  • Significant increase in fuel consumption and weak acceleration
  • Rough idle, engine surge and hesitation under load
  • Failed state emission inspection with high exhaust pollutants
  • Premature catalytic converter damage from improper fuel mixture

Technical Specifications

Package Quantity 2 Pieces O2 Sensors (Front + Rear)
Upstream AFR Sensor PN 234-9040
Downstream O2 Sensor PN 234-4797
Applicable Vehicle 2003-2007 Honda Accord 2.4L L4
Material Heat-resistant stainless steel + sensing ceramic core
Warranty Coverage 1 Year Limited Warranty

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On Jun 22, 2026 at 00:21:08 PDT, seller added the following information:

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