Walker Products Automotive Parts

Walker Products

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image85e7eb6f58934f73aece813f9b3c75cd.txt

Your vehicle&rsquo;s oxygen sensor&nbsp;(also known as O2 sensors) plays a critical role in engine performance, fuel efficiency, and emissions control. By continuously measuring the amount of unburned oxygen in the exhaust, the oxygen sensor&nbsp;sends real-time feedback to your engine control unit (ECU), ensuring the perfect air-fuel mixture.When an oxygen sensor&nbsp;fails, your engine essentially runs &ldquo;blind,&rdquo; leading to poor fuel economy, rough idling, reduced performance, and a persistent check engine light. A timely front oxygen sensor replacement&nbsp;or replacement of a faulty upstream oxygen sensor&nbsp;or downstream oxygen sensor&nbsp;can restore optimal driving conditions and help you pass emissions tests with ease.&nbsp;<h2>Why Choose A-Premium Oxygen Sensors?</h2>Unlike universal parts that require cutting and splicing wires, A-Premium O2 sensors&nbsp;are engineered for direct plug-and-play installation.<ul><li>OEM-style connectors for seamless fit</li><li>Pre-coated anti-seize threads for easy installation</li><li>Laser-welded body construction for durability</li><li>High-temperature sintered coating for long service life</li><li>Premium insulation sheathing and impact-resistant design</li><li>Slotted guard tube for sensor protection</li><li>High heat dissipation structure for extreme environments</li></ul>&nbsp;<h2>Advanced Performance &amp; Precision</h2>A-Premium oxygen sensor&nbsp;technology ensures fast, accurate, and stable performance:<h3>Performance &amp; Response</h3><ul><li>&le;200ms fast response time</li><li>High-efficiency oxygen sensing</li><li>Zirconia sensing element</li><li>Real-time signal feedback</li></ul><h3>Precision &amp; Control</h3><ul><li>Real-time exhaust tracking</li><li>Accurate combustion control</li><li>Stable signal output</li></ul><h3>Efficiency &amp; Engine Benefits</h3><ul><li>Improved fuel efficiency</li><li>Enhanced engine performance</li><li>Reduced harmful emissions</li><li>Extended engine lifespan</li></ul><h3>Environmental Adaptability</h3><ul><li>Operating range: -40&deg;F to 266&deg;F</li><li>Air-tight sealing design</li><li>Stable performance under harsh conditions</li></ul>&nbsp;<h2>3 Symptoms of a Bad Oxygen Sensor</h2>Because O2 sensors&nbsp;operate in extreme heat and carbon-rich environments, they naturally degrade over time.<ul><li>Check Engine Light (CEL): Common codes include P0135, <a style="color: #3598db;" href="https://a-premium.com/blogs/what-is-p0171-code-and-why-you-should-care" target="_blank" rel="noopener">P0171</a>, and <a style="color: #3598db;" href="https://a-premium.com/blogs/p0420-catalytic-converter-efficiency" target="_blank" rel="noopener">P0420</a>. These often point to issues with an upstream oxygen sensor&nbsp;or oxygen sensor bank 1.</li><li>Poor Fuel Economy: A faulty oxygen sensor&nbsp;may cause a rich fuel mixture, dramatically lowering MPG. 20-40% worse fuel economy overnight.</li><li>Rough Idle &amp; Stalling: Incorrect readings from your downstream oxygen sensor&nbsp;or upstream sensor can disrupt engine stability.</li><li>Rotten egg smell:&nbsp;Catalytic converter overheating from bad fuel mixture</li></ul>&nbsp;<h2>Understanding O2&nbsp;Sensor Positions: Upstream vs Downstream</h2>Modern vehicles may have multiple oxygen sensor&nbsp;units, making it essential to identify the correct one:<ul><li>Oxygen Sensor Bank 1vs Bank 2&nbsp;<ul><li>oxygen sensor bank 1 refers to the side of the engine with Cylinder #1</li><li>Bank 2 is the opposite side</li></ul></li><li>Upstream Oxygen Sensor(Sensor 1)&nbsp;<ul><li>Located before the catalytic converter</li><li>Controls air-fuel ratio</li><li>Most common need for front oxygen sensor replacement</li></ul></li><li>Downstream Oxygen Sensor(Sensor 2)&nbsp;<ul><li>Located after the catalytic converter</li><li>Monitors emissions system efficiency</li></ul></li></ul>Tip: Always&nbsp;<a style="color: #3598db;" href="https://a-premium.com/blogs/obd2-codes-categories" target="_blank" rel="noopener">match your diagnostic code</a>&nbsp;to the correct upstream oxygen sensor&nbsp;or downstream oxygen sensor&nbsp;before purchasing.&nbsp;<h2>Complete Your Emissions Repair</h2>Replacing your oxygen sensor&nbsp;is often part of a larger emissions system fix. Consider inspecting these related components:<ul><li><a style="color: #3598db;" href="https://a-premium.com/catalytic-converter" target="_blank" rel="noopener">Catalytic Converter</a>: Persistent issues after replacing a downstream oxygen sensor&nbsp;may indicate converter failure</li><li><a href="https://a-premium.com/air-flow-sensor" target="_blank" rel="noopener">MAF Sensor</a>: Works with your oxygen sensor&nbsp;to calculate air intake</li><li><a href="https://a-premium.com/ignition-coils-spark-plugs-wires-kits" target="_blank" rel="noopener">Ignition Coils &amp; Spark Plugs</a>: Misfires can damage O2 sensors&nbsp;quickly</li></ul>&nbsp;<h2>Shop by Popular Makes</h2>To help you quickly find the right oxygen sensor, explore our most popular vehicle-specific options:<ul><li><a style="color: #3598db;" href="https://a-premium.com/oxygen-sensor/ford" target="_blank" rel="noopener">Ford oxygen sensor</a></li><li><a style="color: #3598db;" href="https://a-premium.com/oxygen-sensor/chevrolet" target="_blank" rel="noopener">Chevy oxygen sensor</a></li><li><a style="color: #3598db;" href="https://a-premium.com/oxygen-sensor/honda" target="_blank" rel="noopener">Honda oxygen sensor</a></li><li><a style="color: #3598db;" href="https://a-premium.com/oxygen-sensor/nissan" target="_blank" rel="noopener">Nissan oxygen sensor</a></li><li><a style="color: #3598db;" href="https://a-premium.com/oxygen-sensor/toyota" target="_blank" rel="noopener">Toyota oxygen sensor</a></li></ul>Browse our most searched and best-selling vehicle-specific oxygen sensor options to quickly locate the right fit for your car.

Oxygen Sensor

Car Oxygen Sensor Price From $24.99 | A-Premium

Accelerator Cable

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image0eaeecfab7a94bfa8091b06245022454.txt

Air Cleaner

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagecfb361ff6cc54b22b1f30236d8cb84ae.txt

Air Filter Box

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image3d8659ec1ade49fc963e946b72054823.txt

Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagece34b386307c46d0b1aa5bece525b45d.txt

Air Intake Duct

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image172ed642cd5649409681f03dd9cb3946.txt

Air Intake Hose

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image4381a9bc5158406999a7326019a0996c.txt

Air Intake Manifold Actuator Control Solenoid

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image08a0d7e93dd14ab78e48f8538c9e9303.txt

Air Intake Manifold Flap Adjuster

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image52d4e4cce9d6451c8b4d45699559fd4c.txt

Air Intake Manifold Runner Control Sensor

Air Intake Resonator

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image8e610f7b2ff44145bfa0e56bad33b6ed.txt

Electric Vacuum Pump

Engine & Cabin Air Filter

Engine Air Duct Assembly

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagee48d7f02bbf34c70ad7b357e2fa7c778.txt

Engine Air Filter

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image0a94f36fd961461aa4c6e7d9631359f8.txt

Intake Manifold

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image40989497417a42428208702227e69934.txt

Intake Manifold Flap Actuator

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image99979477f26948e0847f969de9aa564f.txt

Intake Manifold Repair Bracket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image6fd86e48f6b94335b0c08519135fce2d.txt

Intake Manifold Runner Control Valve

Intake Manifold Seal Gasket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image756a98e6cca14561ae0a2cf13b05ee59.txt

Intercooler

Intercooler Hose

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image2874032448264cc89fcfd3d32e8c4bd4.txt

Pressure Sensor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagec0c2204055f243b9b05b8c9f89f6e1d6.txt

Supercharger Pulley Drive Unit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagef4382b81d9f343459486e2fd50c223e8.txt

Supercharger Snout Rebuild Kit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image71b6637412454ac48505f8fe656d59da.txt

Throttle Body

Throttle Cable

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image95a81ec8105e4580ac078f34b15f7105.txt

Throttle Position Sensor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagecff91ba9de7c4cb1932d544e82f0bf52.txt

Turbocharger

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image98031c51dc6b4a95a1ef3b9e05f64ddd.txt

Turbocharger Gasket Kit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagedbb3e2f10990462aa8dbd76eb04c2e54.txt

Turbocharger Oil Line

Turbocharger Wastegate Actuator

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image73f58f2321b2459fb6919729a345e546.txt

Vacuum Pump

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagec297244633284630939f3bdf6d50529b.txt

Air Filters & Intake Systems

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image72a54af151ea46ae9a947a6c57ba4aae.txt

Camshaft Adjuster

Camshaft Adjuster Cover

Camshaft Kit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image0c746ef912ad473cb3d80560a2d7e0a5.txt

Camshaft Timing Gear

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageac12d53c77414db58a69179123e8d9a5.txt

Camshafts

Chain Tensioner Adjuster

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image98db53590892414c857477e118cb5bca.txt

Cylinder Head

Cylinder Head Assembly

Cylinder Head Gasket

Eccentric Shaft Actuator

Engine Timing Belt

Engine Timing Cover Gasket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagecd9a40b4eb4546c08e376fe1b7fe5819.txt

Engine Valve Cover

Engine Valve Cover Gasket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagec9ce5895dea14f089b6df8f067fd618b.txt

Harmonic Balancer

Rocker Arm

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image2b16cd32bbf04245b2d4ffd4da2474f3.txt

Rocker Arm Shaft Lifter Assembly

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image04246ffa3e3a4cca9c49011214ff6a6f.txt

Timing Belt Kit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagea2df7008626b4434a4a343dc1aba16eb.txt

Timing Chain Gear

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image383f3ae4e5354a29a7ba9fc1cd9cfea7.txt

Timing Chain Kit

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image5af48eb273014fb5a489fe6bb5d14c1e.txt

Timing Cover

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image77c0478f7034493f91708786ed8fc52c.txt

Timing-Control Valve Solenoid

Valve Cover Gasket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageba0bae7f90e346a288aae78753a2f3a0.txt

Valve Lifter Guides

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageff7f4b3ee7204c2d93e5d7f67976617f.txt

Valve Lifters Tappet

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image4ed51fbea7bc4818aa193ac0256a2f42.txt

Cams, Timing & Valvetrain

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image7e54d40a14d3470cb6c0e1820c263b93.txt

Belt Tensioner

Coolant Level Sensor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagea688717671d94972a2a5a846db2a97c6.txt

Crank Installer Tool

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageef7c9a21b8f3481fafd9dc34deefd95e.txt

Crankcase Breather Hose

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image9a51da7735e648caa411dd19fe3015c6.txt

Crankcase Breather Valve

Crankcase Oil Separator

Crankcase Ventilation Cover

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image0f26e0448a8b4d72a06bbefb2c03ab27.txt

Crankshaft Position Sensor

Crankshaft Pulley

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagedbfa702977844f27a12938e2f7f0545f.txt

Engine Oil Dipstick

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image69a46fdd403d4aee988b03c7ce172cb1.txt

Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagea7c063be923740da92163da876f8499f.txt

Flywheel

Harmonic Balancer Crankshaft Hub

Oil Baffle

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image850df044e5234274b30aa010ee94dba5.txt

Oil Cooler

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageebaf93bfb7c046d789a04bb0ac166235.txt

Oil Cooler Line

Oil Drip Pan

Oil Filler Cap

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image0a064858e22c4a7ba148c91978e1e5a8.txt

Oil Filter

Oil Filter Base

Oil Filter Cover

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image32b3ec52ad0249e58ed4ae5303d2f0e7.txt

Oil Filter Housing

Oil Filter Housing Cover

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagedef8d67a5f484cb2a2d594d50eb5b73a.txt

Oil Level Sensor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagee113aaa2222d49448a25eb9c355123e1.txt

Oil Pan

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagec53c3f4f8470449caa2c14852afab4e6.txt

Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Oil Separator

Serpentine Belt

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image650cc271414d4f718467813be1c4a882.txt

Cranks, Pistons, Oil & Components

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image5e4e697a02574c87ae0b5cfda83cd3e8.txt

Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Direct Ignition Coil Boot

Distributor Cap

Distributor Ignition Pickup

Distributor Rotor

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image746c8a47c1aa4355b9491943978d5676.txt

Electronic Ignition System

Engine Valve Covers & Ignition Coils Kits

Glow Plug

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagec81e856f9df545e6a9f4b11411937f3d.txt

Glow Plug Relay Module

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image74cc3f1efb2d492684aac85a1f3bd96f.txt

Ignition Coil

Ignition Coils & Spark Plugs & Wires Kits

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image57ca3e4e8038449ab08157e98602f20b.txt

Ignition Coils & Spark Plugs Kits

Ignition Coils & Wires Kits

Ignition Control Module

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image41d187d382d941e79a6cde28a906b960.txt

Ignition Distributor

Ignition Lock Cylinder

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imagedf6ffde1de044334b7320f4e47bcd934.txt

Ignition Starter Switch

Ignition Switch Actuator

Kill Switch

Knock Sensor

Relay

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image50b27b80d8bb4caa97e9d3e5826bee31.txt

Spark Plug

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image27a6097036004160abe4de68c69ffa5c.txt

Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Pulley

Engine Components & Accessories

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageffda8e886b1944fba7d4f9a8ee0cc9ea.txt

Active Grille Shutter Actuator

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/image1bcab546ad734695ae275b9f5387598a.txt

Auxiliary Water Pump

Electric Engine Water Pump

Engine Coolant Air Bleeder Valve

Engine Coolant Pipe

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imageaea251959195425f8904d707e88f724a.txt

Engine Cooling

https://yt-prod-media-assets.s3.us-east-2.amazonaws.com/2022/item/description/imaged5cb3019fd234fd5aad60f2d16b57d5e.txt

The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

Walker Products Oxygen Sensor