1990 Jeep Wrangler Emission Control

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    • Bosch® Premium Oxygen Sensor
      (0 reviews)
      # 24164325
      Jeep Wrangler 1990, Premium Oxygen Sensor by Bosch®. Location: Upstream. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $17.51 - $49.87
    • Standard® PCV Valve
      (0 reviews)
      # 44948675
      Jeep Wrangler 1990, PCV Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $3.14 - $4.34
    • Omix-ADA® before Cat Oxygen Sensor
      (0 reviews)
      # 4531381
      Jeep Wrangler 4.2L 1990, before Cat Oxygen Sensor by Omix-ADA®. Direct Fit. 5 Year Limited Warranty. The engine control computer regulates the air/fuel mixture using input from the primary, pre-catalyst oxygen sensor. If this...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $37.70
    • Standard® Upstream Oxygen Sensor
      (0 reviews)
      # 64738363
      Jeep Wrangler 1990, Upstream Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $16.48 - $36.61
    • Delphi® Upstream Oxygen Sensor
      (0 reviews)
      # 24582468
      Jeep Wrangler 1990, Upstream Oxygen Sensor by Delphi®. Wrench Size: 7/8". As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $16.60 - $36.99
    • NTK® Replacement Oxygen Sensor
      (0 reviews)
      # 22140556
      Jeep Wrangler 1990, Replacement Oxygen Sensor by NTK®. This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $14.95
    • Standard® EGR Valve
      (0 reviews)
      # 44948697
      Jeep Wrangler 1990, EGR Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $66.03 - $81.96
    • Denso® Upstream OE Connector Oxygen Sensor
      (0 reviews)
      # 21048233
      Jeep Wrangler 1990, Upstream OE Connector Oxygen Sensor by Denso®. O.E. Quality Replacement Sensor. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $14.61 - $31.20
    • Denso® Upstream Oxygen Sensor
      (0 reviews)
      # 21092816
      Jeep Wrangler 1990, Upstream Oxygen Sensor by Denso®. O.E. Quality Universal Replacement Sensor. 11.77" / 29.90 cm Length. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $15.26 - $36.11
    • Crown® Crankcase Check Valve
      (0 reviews)
      # 16692387
      Jeep Wrangler 2.5L 1990, Crankcase Check Valve by Crown®. Crankcase Vent Valve. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $4.35
    • Standard® Right Secondary Air Injection Pipe
      (0 reviews)
      # 44855552
      Jeep Wrangler 4.2L 1990, Right Secondary Air Injection Pipe by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $46.64
    • Standard® Idle Speed Control Motor
      (0 reviews)
      # 44948712
      Jeep Wrangler 2.5L 1990, Idle Speed Control Motor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $28.49 - $61.30
    • Bosch® Universal Fit Oxygen Sensor
      (0 reviews)
      # 24137748
      Jeep Wrangler L6 1990, Universal Fit Oxygen Sensor by Bosch®. Location: Upstream. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $18.22
    • Omix-ADA® EGR Valve
      (0 reviews)
      # 4535561
      Jeep Wrangler 1990, EGR Valve by Omix-ADA®. Direct Fit. 5 Year Limited Warranty. The EGR valve is an emissions device that helps to reduce combustion chamber temperatures and the creation of NOx (oxides of Nitrogen). If the valve...
      Performs according to OEM specificationsMeets or exceeds OEM quality standards
      $135.48
    • Standard® Idle Speed Control Motor Connector
      (0 reviews)
      # 63837104
      Jeep Wrangler 1990, Idle Speed Control Motor Connector by Standard®. 4 Terminals Male Connector. Finish: Gray. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $21.89
    • Standard® Oxygen Sensor Connector
      (0 reviews)
      # 64005530
      Jeep Wrangler 1990, Oxygen Sensor Connector by Standard®. Finish: Black. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $10.00 - $18.00
    • FRAM® PCV Valve
      (0 reviews)
      # 39233408
      Jeep Wrangler 1990, PCV Valve by FRAM®. The Positive Crankcase Ventilation (PCV) system prevents the release of harmful emissions, helps keep engine oil clean and prevents excessive crankcase pressure, which can cause oil leaks....
      Essential component of the PCV systemRegulates flow of crankcase vapors into the engine
      $2.80 - $3.36
    • ACDelco® Professional™ Engine Crankcase Breather Element
      (0 reviews)
      # 69635850
      Jeep Wrangler 2.5L 1990, Professional™ Engine Crankcase Breather Element by ACDelco®. Vapor Canister Filter.
      $2.45
    • WIX® Breather Filter
      (0 reviews)
      # 64428738
      Jeep Wrangler 1990, Breather Filter by WIX®. Wix Breather Filters remove chemical contaminants and particulate matter from the crankcase. They are made of pleated paper and connected to the breather tube. These filters also trap...
      Low air flow restrictionIncludes a pleated paper filter
      $2.46
    • Fel-Pro® EGR Valve Gasket
      (0 reviews)
      # 18905795
      Jeep Wrangler 1990, EGR Valve Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $1.59 - $2.52
    • Standard® Intermotor™ EGR Valve Gasket
      (0 reviews)
      # 45090796
      Jeep Wrangler 1990, Intermotor™ EGR Valve Gasket by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $2.10
    • Standard® Tru-Tech™ EGR Valve Gasket
      (0 reviews)
      # 23778847
      Jeep Wrangler 1990, Tru-Tech™ EGR Valve Gasket by Standard®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $2.16
    • Victor Reinz® EGR Valve Gasket
      (0 reviews)
      # 24035876
      Jeep Wrangler 2.5L 1990, EGR Valve Gasket by Victor Reinz®, Use 1 per Car. Material: Nitroseal. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But...
      $1.96
    • Standard® Handypack™ Oxygen Sensor Connector
      (0 reviews)
      # 43991731
      Jeep Wrangler 1990, Handypack™ Oxygen Sensor Connector by Standard®. Black. 3 Terminal Male. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $8.25
    • Accel® Gen VII™Linear Oxygen Sensor
      (0 reviews)
      # 12710299
      Universal Gen VII™Linear Oxygen Sensor by Accel®. No matter what vehicle you own, its ignition system is what helps to achieve the mileage and power you bought it for. Quality ignition system components are a sure way to let your...
      The finest quality at a great priceImproves your engine's performance
      $87.54 - $1,159.73
    • BTP® PCV Valve
      (0 reviews)
      # 66960259
      Universal PCV Valve by BTP®. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep emission control system in your vehicle...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $19.89
    • BTP® Evacuation System
      (0 reviews)
      # 66967865
      Universal Evacuation System by BTP®. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep emission control system in your...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $4.87 - $34.75
    • BTP® Smog PCV Tube
      (0 reviews)
      # 66967993
      Universal Smog PCV Tube by BTP®. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep emission control system in your vehicle...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $1.51 - $2.13
    • BTP® Grommet
      (0 reviews)
      # 69343097
      Universal Grommet by BTP®. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep emission control system in your vehicle working...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $0.62 - $0.66
    • Walker Products Inc.® OE Connector Oxygen Sensor
      (0 reviews)
      # 8741800
      Jeep Wrangler 4.2L 1990, OE Connector Oxygen Sensor by Walker Products Inc.®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before...
      $37.78
    • Crown® Oxygen Sensor
      (0 reviews)
      # 16673849
      Jeep Wrangler 1990, Oxygen Sensor by Crown®. Oxygen Sensor; NA. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $45.46 - $53.30
    • Powerbuilt® Oxygen Sensor Socket Kit
      (0 reviews)
      # 16795834
      Oxygen Sensor Socket Kit - Kit #51 by Powerbuilt®. For removing and installing oxygen sensor sockets. Special cut-out design on sockets prevents damage to wire leads.
      Made with precision and quality in mindDesigned to meet your specific needs
      $21.50
    • Powerbuilt® Master Sensor Socket Kit
      (0 reviews)
      # 16795870
      Master Sensor Socket Kit - 7 Pc by Powerbuilt®. Sven piece Master Sensor Socket Kit removes and installs oxygen sensors, oil pressure sending units and vacuum switches equipped with wires or vacuum tubes. The kit includes single...
      Made with precision and quality in mindDesigned to meet your specific needs
      $35.38
    • Hastings® Crankcase Breather Filter
      (0 reviews)
      # 21459436
      Jeep Wrangler 4.2L 1990, Crankcase Breather Filter by Hastings®. The crankcase ventilation system channels harmful crankcase vapors to the air intake so they can be burned along with the air/fuel mixture. The Crankcase Breather...
      Properly filters air drawn through the crankcase ventilation systemPrevents dirt and abrasives from damaging the engine
      $2.76
    • Crown® EGR Gasket
      (0 reviews)
      # 16673896
      Jeep Wrangler 1990, EGR Gasket by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $1.04 - $1.27
    • Crown® EGR Valve
      (0 reviews)
      # 16688012
      Jeep Wrangler 2.5L 1990, EGR Valve by Crown®. EGR Valve. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang...
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $136.50
    • Spectra Premium® Upstream Oxygen Sensor
      (0 reviews)
      # 22844109
      Jeep Wrangler 1990, Upstream Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $20.58 - $63.26
    • Accel® UEGO Wideband O2 Module
      (0 reviews)
      # 12710251
      Universal UEGO Wideband O2 Module by Accel®. No matter what vehicle you own, its ignition system is what helps to achieve the mileage and power you bought it for. Quality ignition system components are a sure way to let your engine...
      The finest quality at a great priceImproves your engine's performance
      $584.85
    • Powerbuilt® 1/2" Dr. 7/8" (22mm) Oxygen Sensor Socket
      (0 reviews)
      # 16795808
      1/2" Dr. 7/8" (22mm) Oxygen Sensor Socket by Powerbuilt®. For removing and installing oxygen sensor and vacuum switches. Specially designed 7/8" (22mm) socket features slot for wiring connector pigtail or vacuum nipples. 2-1/2"...
      Made with precision and quality in mindDesigned to meet your specific needs
      $6.43
    • Powerbuilt® Specialty Switch Socket Kit
      (0 reviews)
      # 16795844
      Specialty Switch Socket Kit - Kit #62 by Powerbuilt®. For removal and installation of hard to reach oxygen sensors, oil pressure switches, oil pressure sending units and thermal sensor switches.
      Made with precision and quality in mindDesigned to meet your specific needs
      $44.18

    Guides & Articles
    An oxygen sensor (also known as an O2 sensor or Lambda sensor) is a sensor designed to generate a reading based on the content of oxygen in an automotive exhaust system. The sensor itself is made of a ceramic compound with porous-shaped electrodes coated in platinum, surrounded by a protective metal shell casing. O2 sensor casings are threaded, and the entire unit...
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