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20 Best Chevy Blazer O2 Sensor Locations of 2023 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best Chevy Blazer O2 Sensor Locations of 2023. Check our ranking below.
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- [Vehicle Fitment]: "Upstream and Downstream": Compatible with Cadillac Escalade 2002 V8 5.3L(Canada Built); Compatible with Chevrolet Avalanche 1500 2002 V8 5.3L(Canada Built; VIN-T), Blazer 2002-2005 V6 4.3L, Silverado 1500 2000-2002 V8 4.8L 5.3L(Canada Built), Silverado 2500 2000 V8 5.3L(Canada Built; VIN-T), Suburban 1500 2000-2002 V8 5.3L(Canada Built; VIN-T/Z), Tahoe 2000-2002 V8 4.8L 5.3L(Canada Built); Compatible with Honda Passport 2002 V6 3.2L(Canada Built)
- [Vehicle Fitment]: "Upstream and Downstream": Compatible with GMC Sierra 1500 2000-2002 V8 4.8L 5.3L(Canada Built), Sierra 2500 2000 V8 5.3L(Canada Built; VIN-T), Sonoma 2002 V6 4.3L (VIN-W), Yukon 2000-2002 V8 4.8L 5.3L(Canada Built), Yukon XL 1500 2000-2002 V8 5.3L(Canada Built; VIN-T/Z); Compatible with Isuzu Axiom 2004 V6 3.5L (Engine code: 6VE1), Rodeo 2002-2004 V6 3.2L, Rodeo 2004 V6 3.5L, Rodeo Sport 2002-2003 V6 3.2L (Engine code: 6VD1; VIN: W)
- [Reference Number]: 250-24269, 25024269, 12558850, 12559850, 12561776, 12562943, 12567127, 8125671270, 97287352, 972873520
- [Specification]: ① Wire Quantity: 4; ② Overall Length: 400 mm; ③ Mounting Type: Threaded; ④ Sensor Type: Heated; ⑤ Connector Gender: Female; ⑥ Package Quantity: 4x Oxygen Sensor; ⑦ Packaging Type: Box
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted O2 Oxygen Sensor. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.
- Fitment(Upstream): For Chevy S10 4.3L 1998-2001, for Chevy Blazer 4.3L 1998-2001, for GMC Jimmy 1998-2001 4.3L, for Oldsmobile Bravada 4.3L 1998-2001, for Cadillac Escalade 5.3L/5.7L 2002, For Chevy Avalanche 1500 5.3L 2002, for Chevy Silverado 1500 4.3L/4.8L/5.3L 1999-2002, for Chevy Silverado 2500 5.3L 1999-2000, for Chevy Suburban 1500 5.3L 2000-02, for Chevy Tahoe 4.8L/5.3L/5.7L 1997-2002, for GMC Sierra 1500 4.3L/4.8L/5.3L 1999-2002, for GMC Yukon XL 1500 5.3L 2000-2001.
- Fitment(Downstream): For Isuzu Rodeo 2.2L/2.6L/3.2L 2001-2003, for Isuzu Rodeo Sport 2.2L 2001-2003, for Oldsmobile Bravada 4.3L 1998-2001, for Chevy S10 2.2L/4.3L 1996-2001, for Chevy Blazer 4.3L 1996-2001, for GMC Jimmy 4.3L 1998-2001, for Cadillac Fleetwood 5.7L 1996, for Acura SLX 3.2L/3.5L 1996-1999, for Honda Passport 2.6L/3.2L 1996-2000, for Isuzu Amigo 2.2L/3.2L 1998-2000, for Pontiac Firebird 3.8L 1995, for Buick Roadmaster 5.7L 1996, for Buick Regal 3.8L 1995.
- OEM Part Number: 13026, 234-4012, 2344012, 15703, AFS138, AFS105, 131325, 213-1325, 21006, AFS75, DY-738, 25315809, 19178961, 1AMOX00003.
- High-Grade Quality: Ynovvo oxygen sensor offers high performance & long-term use with superior materials & technology. all products come with a 2-year warranty.
- Note: Before you purchase, please enter your vehicle info in the top-left corner to check if this OEM oxygen sensor fits. Each package includes 1 oxygen sensor. Contact us for any questions.
- ➤【Interchange Number】234-4012 x 3
- ➤【Applications】Oxygen Sensor Replacement for Chevy 2001 2000 1999 1998 1997 1996 Chevy Blazer S10 GMC Jimmy Sonama Oldsmobile Bravada V6 4.3L 02 Sensor。
- ➤【Cautions】Pls carefully check your vehicle year & make & model with the fitment of Amazon and our description. You must read our description carefully, and it will tell you more about the fitment. Pls check your part pictures with our pictures, it must be completely same. Or it will not fit your car. Pls check your parts No. It must be among our fitment OEM No. If you have any questions, please email us, we try to answer all email within 24 hours.
- ➤【Installation】Step1. Locate the oxygen sensor position and remove it with socket, step2. Compare the new sensor to the old sensor to ensure a proper installation, step3. Please clean the threaded port to en sure a proper seal of the new sensor,step4.Gently tighten the sensor in order to keep wire free from damage and avoid sensor leakage, step 5,reinstail the connecor,try to clear it if the car has diagnostic trouble codes.
- ➤【Warranty】1-Year Unlimited Miles Warranty. If the oxygen sensor doesn not fit your vehicle, we accept return. Please make the item clean and package in good condition.
- 【Warranty】2 Years. (Improve fuel efficiency & Stable performance & Durable)
- 【Placement on Vehicle】▲Upstream, Front, Pre-cat；Rear, Downstream, Post-cat ▲Sensor Type : Heated. ▲Wire Count : 4-Wire ▲Wire Harness Length : 12.28 in.
- 【Interchange Part Number】234-4343, 2344343, 12567254, 12590789, 234-4650, 2344650, 8972873520, 89728-73520
- 【Direct Fit Application】234-4343 oxygen sensor replacement for Chevrolet Blazer 4.3L V6 2002 2003 2004 2005, for Chevrolet S10 4.3L V6 2002 2003 2004 2005, for GMC Jimmy 4.3L V6 2002 2003 2004 2005, for GMC Sonoma 4.3L V6 2002 2003 2004
- 【Service Guaranteed】Must pass a rigorous professional practice loading test before sale and shipment. 100% satisfaction after sale services and technical assistance. Please rest assured to purchase.If you have any questions, contact with us, we will reply you in 24 hours and offer the solve way for you.Hope you have a good shopping!
- FITMENT - 2004-2005 for Buick Rainier, 2004-2005 for Chevy Colorado, 2004-2005 for Chevy Trailblazer, 2004-2005 for Chevy Trailblazer EXT, 2004-2005 for GMC Canyon, 2004-2005 for GMC Envoy, 2004-2005 for GMC Envoy XL, 2004-2005 for GMC Envoy XUV, 2004-2005 for Isuzu Ascender, 2004 for Oldsmobile Bravada, 2005 for Saab 9-7x
- SUPERIOR QUALITY AND ACCURACY - Superior quality materials meet or exceed OEM specifications, ensuring reliable performance and accurate readings.
- OPTIMAL PERFORMANCE - This sensor assists in optimizing engine operation. This leads to smoother acceleration, improved responsiveness, helping the vehicle's engine adjust the air-fuel mixture for optimal combustion and improved fuel efficiency
- EASY TO INSTALL - Designed as a direct replacement for the original device, plug-and-play compatibility, easy connection to existing wiring harnesses without additional modifications or tools, and seamless installation to the specified sensor location without modification or adjustment.
- NOTE - Before purchase this sensor please use the year/make/model drop down bar confirm the compatibility or description to confirm the compatibility.It is recommended that you need to clean the three-way catalyst and use the computer to clear the original fault code before installing the product.
Last update on 2025-09-10 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: What does the O2 sensor do on a Chevy Blazer?
A: Your Blazer’s oxygen sensors are responsible for helping to keep your engine running at optimal efficiency. The engine management computer uses the data from all of the O2 sensors to keep the air/fuel mixture optimized. A bad oxygen sensor can affect the mixture greatly.
Q: Where is the bank 1 O2 sensor on a Chevy Silverado?
A: Bank 1- Side of the engine with the first cylinder in the firing order. This means that you need to look up the firing order for your particular model year and engine. Sensor 1- Sensor 1 would be the first O2 sensor in the line of sensors starting with the exhaust manifold and making its way back to the exhaust pipe.
Q: What side of the engine is the oxygen sensor on?
A: There are many oxygen sensor related codes. These codes correspond with what side of the engine they are on (known as the “bank” for cylinder bank) and how far down stream they are. For instance, an oxygen sensor at bank 1 – sensor 1 would be: Bank 1- Side of the engine with the first cylinder in the firing order.
Q: Is there an O2 sensor wiring diagram for Chevy Aveo?
A: 09 Aveo O2 Sensor Wiring – Wiring Diagram Data – O2 Sensor Wiring Diagram Chevy The diagram provides visual representation of an electric arrangement. However, this diagram is a simplified version of this structure. It makes the procedure for building circuit easier.