1991 BMW 3-Series Emission Control

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    • (0 reviews)
      # 57001462
      BMW 3-Series 1991, Oxygen Sensor by Denso®. Position: Upstream. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $63.48 - $69.84
    • (0 reviews)
      # 710382101
      BMW 3-Series 1991, Universal Fit Oxygen Sensor by Denso®. Position: Upstream. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $32.41 - $59.75
    • (0 reviews)
      # 24140891
      BMW 3-Series 1991, Premium Oxygen Sensor by Bosch®. Position: 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 from...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $57.71 - $93.61
    • (0 reviews)
      # 585611851
      BMW 3-Series 1991, Universal Fit Oxygen Sensor by Bosch®. Position: Upstream. Universal Oxygen Sensors with OE SmartLink are quick and easy to install. Each sensor has enough length of sensor wire to allow maximum replacement of worn...
      Patented SmartLink™ connector systemNo special tools required for installation
      $41.16 - $56.63
    • (0 reviews)
      # 22132717
      BMW 3-Series 1991, Oxygen Sensor by NTK®. Position: Upstream. Location: B1S1. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $77.75 - $134.20
    • (0 reviews)
      # mpn2472132
      BMW 325i / 325is / 325iX 1991, Oxygen Sensor by Delphi®. Position: Upstream. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering...
      OE connectors and wire lengths within 3" of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $59.52
    • (0 reviews)
      # mpn3368547913
      BMW 325i / 325is / 325iX 1991, Oxygen Sensor by Spectra Premium®. Position: Upstream. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $44.45
    • (0 reviews)
      # 286159642
      BMW 3-Series 1991, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Universal Fit. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Specifically designed to comply with the California...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $102.31 - $113.29
    • (0 reviews)
      # 286159646
      BMW 3-Series 1991, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Emissions control for better air quality. Direct Fit catalytic converters, for pre-OBDII models. Universal fit...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $52.21 - $85.10
    • (0 reviews)
      # mpn474119778
      BMW 3-Series 1.8L 1991, Catalytic Converter and Pipe Assembly by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 56". The growing...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $371.64
    • (0 reviews)
      # 81395981
      BMW 3-Series 1991, Special Body Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Three-Way No / Air OBDII By Design...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $111.66 - $118.98
    • (0 reviews)
      # 86067490
      BMW 3-Series 1991, Catalytic Converter and Pipe Assembly by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic...
      Direct fitMade from a heavy duty stainless steel outer shell
      $375.56 - $541.21
    • (0 reviews)
      # 83035013
      BMW 3-Series 1991, Catalytic Converter and Pipe Assembly by Davico®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Center. This direct-fit catalytic converter by Davico will be a great solution to replace your...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $189.26 - $409.08
    • (0 reviews)
      # mpn1116024
      BMW 325i / 325iX with PRE-OBDII Models 1991, Pre-OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. With Gaskets and Assembly. Without Air Tube. Without O2 Sensor Port. Catalytic...
      $549.19
    • (0 reviews)
      # 18317175
      BMW 3-Series with PRE-OBDII Models 1991, Pre-OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Catalytic Inlet Diameter:...
      $124.62 - $198.08
    • (0 reviews)
      # 380759171
      BMW 3-Series 1991, Standard Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2.25". If your car needs...
      $387.86 - $399.35
    • (0 reviews)
      # 49708954
      BMW 3-Series 1991, Standard Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Outlet Diameter: 2". If your car needs replacement,...
      $71.08 - $99.49
    • (0 reviews)
      # mpn53631964
      BMW 3-Series 1.8L 1991, Intermotor™ Vapor Canister Purge Solenoid 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 manufacturersThe finest quality at a great price
      $93.93
    • (0 reviews)
      # mpn1032498188
      BMW 325i / 325is / 325iX 1991, Flame Trap Hose by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $3.10
    • (0 reviews)
      # mpn2172776
      BMW 325i / 325iX 1991, Breather Hose by Rein®. Location: Valve Cover To Throttle Body. Air, breather, and vacuum hoses channel air and vapors and make sure your vacuum operated accessories can be properly actuated. Unfortunately, age...
      Direct fit, form, and functionEngineered to the highest OE standards
      $6.44
    • (0 reviews)
      # mpn4515245350
      BMW 325i / 325is / 325iX 1991, Valve Cover Breather Hose by Febi®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....
      24 Months/24,000 MilesThe finest quality at a great price
      $3.85
    • (0 reviews)
      # 350072309
      BMW 3-Series To VIN # BA73 1991, Exhaust Bolt by Bosal®. Location: Converter to Rear Muffler. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $4.45
    • (0 reviews)
      # mpn4516842182
      BMW 318i / 318is 1991, Pre-OBDII Catalytic Converter by Flowmaster®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Catalytic Inlet Diameter: 2". Catalytic...
      $202.97
    • (0 reviews)
      # 821255117
      BMW 3-Series 1991, Crankcase Breather Hose by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials...
      Carefully crafted to provide optimum performanceMade from premium materials to last
      $16.85 - $49.50
    • (0 reviews)
      # 585512130
      BMW 3-Series 1991, Professional™ Oxygen Sensor by ACDelco®. Position: Upstream. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $95.66 - $97.72
    • (0 reviews)
      # 44882840
      BMW 3-Series 1991, Oxygen Sensor by Standard®. Position: Upstream. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      One-piece laser welded body for maximum protection and precise operation maintaining sensor integrityDual internal talc seal makes Our Oxygen sensors last longer
      $63.68 - $69.03
    • (0 reviews)
      # 772606908
      BMW 3-Series 2.3L with PC-2 Weight Class 1991, ECO CARB Catalytic Converter by Eastern®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 14"....
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $73.39 - $129.15
    • (0 reviews)
      # mpn1206809
      BMW 3-Series 1.8L with PC-1 Pre OBDII Weight Class 1991, ECO CARB Catalytic Converter by Eastern®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Position: Center. Catalytic Converter Body Shape: Round. Catalytic...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $161.12
    • (0 reviews)
      # mpn3001539504
      BMW 325i / 325is E30 Body Code 1991, Catalytic Converter and Pipe Assembly by Bosal®. Emissions: EPA compliant. Converter Configuration: Direct Fit. If you’re in need of a replacement catalytic converter, you can’t do better than...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $307.81


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    • Replacement Emission Control Parts
      August 18, 2014
      Oxygen Sensors - Why Does My Car Have Four, And...
      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...
      by Michael Grayen
    • Ignition Parts
      August 10, 2014
      Auto Parts: Dealer vs. Aftermarket
      The question of whether to buy parts from an automotive dealer vs. ones from aftermarket manufacturers is as age-old as the automobile itself. Below, we'll take a look...
      by Timothy Zahl

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