O2 sensors for a Honda Accord typically cost between $60 and $250 per sensor, depending on whether you buy an aftermarket or OEM unit and which sensor you need (upstream vs downstream). Labor, if you have it installed, can add about $50–$150.
The question covers what an oxygen sensor is, how many your Accord uses, and how prices vary across brands and where you buy. This article explains the different sensor types for Honda Accords, typical price ranges, and tips to save while ensuring you get the correct replacement for your year and engine.
Oxygen sensor basics in the Honda Accord
Oxygen sensors monitor the level of oxygen in the exhaust and help the engine control unit maintain the proper air-fuel mixture. Depending on the engine configuration, a Honda Accord may have two or four O2 sensors: upstream sensors (before the catalytic converter) and downstream sensors (after the catalytic converter). The V6 models use two banks (Bank 1 and Bank 2), each potentially with an upstream and downstream sensor.
Before you shop, it helps to know which sensor you need. Here are common placements you’ll encounter:
- Upstream (pre-cat) sensors before the catalytic converter, usually labeled Bank 1 Sensor 1 (and Bank 2 Sensor 1 on V6 engines).
- Downstream (post-cat) sensors after the catalytic converter, usually labeled Bank 1 Sensor 2 (and Bank 2 Sensor 2 on V6 engines).
- Heated vs non-heated variants: most modern Accords use heated sensors for quicker operation, which typically cost more but last longer in cold climates.
Prices and availability vary by year, engine type, and regional market. When you replace a sensor, you’ll typically replace the exact sensor that matches your VIN to ensure proper fit and signaling.
Pricing by type and brand
The following ranges reflect typical pricing as of 2024–2026. Actual prices can differ by retailer, region, and whether the part is new or refurbished.
- OEM Honda Genuine sensors: generally $120–$250 per sensor, with higher prices for newer or heated variants.
- Aftermarket OEM-equivalent sensors (Denso, Bosch, NTK, Standard Motor Products, etc.): typically $60–$150 per sensor; heated versions may run $90–$180.
- Universal or universal-fit aftermarket sensors: often $20–$60 per sensor, but they may require adapter wiring and can have compatibility caveats; installation complexity can offset savings.
When shopping, make sure you select the correct sensor for your exact Accord year, engine (e.g., 4-cylinder vs V6), and emission configuration. Heated sensors are common on newer models and in colder climates; non-heated sensors may be found on older or budget-oriented options.
Where to buy and how to save
Prices aren’t the only factor; timing and retailer choice can affect what you pay. Here are common buying options and tips to save.
- Auto parts chains (AutoZone, O'Reilly, Advance Auto): broad selection and in-store pickup; typical sensor price range $60–$180, with potential member discounts or coupons.
- Online retailers and marketplaces (RockAuto, Amazon, eBay): often competitive pricing and wide availability; verify compatibility with your exact year/model and check seller ratings.
- Dealerships and certified shops: convenience and OEM parts, but usually the most expensive option; expect roughly $150–$250 per sensor plus labor.
Tip: compare part numbers (especially for Bank 1 Sensor 1 vs Bank 1 Sensor 2) and read customer reviews about fitment. If you’re replacing more than one sensor at once, some shops offer bundle pricing on parts and labor.
Installation considerations and warranty
Replacing an O2 sensor can be a DIY or professional job, depending on your comfort level and tool access. Factors that influence cost and difficulty include sensor location, exhaust clearance, and whether the sensor is seized in place.
- Labor and time: replacing one sensor typically takes 0.5–1.5 hours for a professional, depending on access and vehicle year.
- Vehicle specifics: four-cylinder Accords commonly have two sensors (pre- and post-cat), while some V6 models have four sensors across two banks.
- Warranty: many aftermarket sensors come with 1-year to 2-year warranties; OEM parts from dealers may carry similar or longer warranty terms depending on the seller.
If you’re replacing multiple sensors or performing maintenance to clear check-engine codes, confirm warranty coverage and keep your receipts for possible return or replacement claims.
Summary
For a Honda Accord, plan a price range of roughly $60–$250 per O2 sensor, with OEM Genuine parts on the higher end and aftermarket equivalents generally cheaper. Expect additional labor costs if you have a shop replace the sensor, typically around $50–$150 per sensor. Know which sensor you need (upstream vs downstream, Bank 1 vs Bank 2 on V6), and verify compatibility with your exact year and engine. Shopping around and considering bundled purchases can help you save, while ensuring you get a properly matched, warrantied replacement.