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Toyota Sienna Catalytic Converter

We have 9 Items In-stock. Select a year to continue.
$85.33 List Price $100.69 Save $15.36 Availability: In Stock
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EASTERN ECO II SERIES CATALYTIC CONVERTER

Specifications:

  • With oxygen sensor port provision
  • 30 years of innovation is proof enough that Eastern is the best manufacturer of the finest aftermarket and original equipment catalytic converters on the market. Their ECO Series Catalytic Converters which are designed to help keep the Check Engine Light (MIL) off is another set of catalytic converters with world class quality.

    The Eastern ECO II Series Catalytic Converter is made specifically for most complex or second generation on board diagnostic (OBD II) systems. It features wash coats with greater loadings of precious metals to handle applications with ultra low emissions, higher than normal emissions, as well as vehicles with higher mileage and heavier workloads.

    The Eastern ECO II Series Catalytic Converter's features in a nutshell:

    • Engineered with Eastern's proprietary NANO technology yielding highly efficient loadings for lower cost and better converter efficiency
    • Features an advanced materials design for maximum engine output and performance

    Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: EAST82724
    • Brand: Eastern
    • Fit Note: AWD
    • Emissions: 48-State Legal (Cannot Ship to CA or NY)
    • Product Fit: Semi-Universal
    • Quantity Sold: Sold Individually
    • Tube Material: Aluminized Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    (see more)
    Fits the following Toyota Sienna Years:
    • 2006 | 6 Cyl 3.3L | Limited
    • 2004-2006 | 6 Cyl 3.3L | LE, XLE
    (see more)
    Rating: (see review/s)

    "This product got me out of a jam. Saved me $1000 and passed inspection." posted by: Vic on January 15, 2014

    "So far this has made a tremendous improvement in the car's running." posted by: on January 23, 2012 view all 3 reviews

    $100.27 List Price $129.77 Save $29.50 Availability: In Stock
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    • Not legal for use in California or in states adopting the California emissions standards
    • Semi-universal design – cut out your old catalytic converter and weld in the new one
    • Stainless Steel Construction
    • Legendary Magnaflow quality, power, and sound
    • Ceramic, honeycomb catalyst designed for maximum flow and surface area

    When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

    • SKU#: M6699204HM
    • Brand: Magnaflow
    • Emissions: 48-State Legal (Cannot Ship to CA or NY)
    • Product Fit: Semi-Universal
    • Quantity Sold: Sold Individually
    • Tube Material: Stainless Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    (see more)
    Fits the following Toyota Sienna Years:
    • 2001-2003 | 6 Cyl 3.0L | CE, LE, XLE
    Rating: (see review/s)

    "Replaced entire exhaust and this item was part of it. Couple days for shipping arrived undamaged had everything welded and installed and sounds great. This is a fraction of the cost of a direct fit/bolt on converter so was pretty much a no-brainer." posted by: on May 18, 2014

    $332.74 List Price $735.65 Save $402.91 Availability: In Stock
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    Davico Catalytic Converter

    Davico Manufacturing is committed to producing hard to find and specialized exhaust parts for the customer's satisfaction. Its catalytic converter is an example of the company's outstanding dedication.

    Davico Catalytic Converter's design enables the conversion of harmful compounds into less dangerous gasses to help in pollution control without reducing its efficiency. Designed for many makes and models, this converter is easy to install.

    Specifications:

    • Y-Pipe catalytic converter
    • 3-way catalyst style
    • 36 in. L x 9 in. W x 10.5 in. H
    • Dual inlet and single outlet configuration
    • One catalytic converter
    • Ceramic honeycomb substrate material
    • Stainless steel case material
    • Aluminized steel tube material
    • 2-2bolt-fixed flanges inlet type
    • 2 bolt-fixed flange outlet type
    • Includes gaskets: 24899 (1), 24554 (2)
    • Does not require cutting, sliding, clamping, or welding for installation
    Note: Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: DAV16139
    • Brand: Davico
    • Fit Note: For Vehicles Originally with Federal Emissions, With 36 in. Overall Length, With 36 in. Overall Length
    • Emissions: 48-State Legal (Cannot Ship to CA or NY)
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Aluminized Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    (see more)
    Fits the following Toyota Sienna Years:
    • 2001-2003 | 6 Cyl 3.0L | CE, LE, XLE
    $352.37 List Price $761.32 Save $408.95 Availability: In Stock
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    CATCO CATALYTIC CONVERTER ASSEMBLY

    Catco's catalytic converters are designed with 409 stainless steel pipes and shell for longer life.

    Specifications
    • 6-bolt flange welded inlet
    • 2-bolt flange welded outlet
    • With one oxygen sensor port
    • Manifold type assembly with one catalytic converter
    • Oval body
    • 14 in. overall length
    • 3-1 inlet and single outlet configuration
    Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: CAT1076
    • Brand: Catco
    • Emissions: 48-State Legal (Cannot Ship to CA or NY)
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Stainless Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    (see more)
    Fits the following Toyota Sienna Years:
    • 2001-2003 | 6 Cyl 3.0L | CE, LE, XLE
    $375.92 List Price $796.50 Save $420.58 Availability: In Stock
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    WALKER CATALYTIC CONVERTER ASSEMBLY

    Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and durability.

    Features
    • 3-way catalyst style
    • Welded flange inlet
    • Welded flange outlet
    • Standard assembly with one catalytic converter
    • Higher loaded substrate
    • Oval body
    • Easy bolt-on installation
    Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: WK54537
    • Brand: Walker
    • Fit Note: For Vehicles Originally with Federal Emissions, With 37 in. Overall Length, With 37 in. Overall Length
    • Emissions: 48-State Legal (Cannot Ship to CA or NY)
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Stainless Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    (see more)
    Fits the following Toyota Sienna Years:
    • 2001-2003 | 6 Cyl 3.0L | CE, LE, XLE
    View All
    $211.00 List Price $273.06 Save $62.06 Availability: In Stock
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    FLOWMASTER – 50 STATE LEGAL SEMI-UNIVERSAL CATALYTIC CONVERTER

    Failed the smog test because of a malfunctioning stock catalytic converter that has come to the end of its life? Don’t panic and send your vehicle off to the junkyard when everything else is running smoothly. Replace that old catalytic converter with a new Flowmaster 50 State Semi-Universal Catalytic Converter and go back in for a retest. Since installing a new converter from any car dealer is exceedingly expensive, using a Flowmaster is a much better alternative. After installing a Flowmaster 50 State Legal Semi-Universal Catalytic Converter, your car, truck or SUV will have a much better chance of passing the smog test and it will not trip check engine lights as well. Flowmaster known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

    • Great for replacing worn out factory original catalytic converters
    • Designed and manufactured in U.S.A.
    • Meticulously engineered internals with the correct precious metals won’t set off check engine lights
    • Mandatory in all states that adopted strict California vehicle emission standards
    • All California Air Resources Board (CARB) requirements are met
    • Catalyst housing is made from stainless steel for longevity
    • Made for a wide selection of popular trucks, SUVs and cars

    NOTE: Requires clamps, welding or custom fabrication to install

    • SKU#: F133912025
    • Brand: Flowmaster
    • Product Fit: Semi-Universal
    • Quantity Sold: Sold Individually
    • Tube Material: Stainless Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    • EO Number: D-280-101
    (see more)
    Fits the following Toyota Sienna Years:
    • 1998-2000 | 6 Cyl 3.0L | CE, LE
    • 1999 | 6 Cyl 3.0L | XLE
    $317.97 List Price $375.20 Save $57.23 Availability: In Stock
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    PACESETTER - CATALYTIC CONVERTERS

    Replace your sub-par stock converter with a higher performing catalytic converter by Pacesetter Performance. Their converters are fabricated from the finest mandrel-bent stainless steel and feature perfect fit machined steel flanges. Pacesetter, known for their exhausts, has been a leading manufacturer of performance headers and exhaust systems since their inception in 1974.
    • Designed to replace poorly performing OEM converter
    • Streamlines and improves exhaust flow via honeycomb catalyst
    • Made from fine mandrel-bent stainless steel
    • Complies with EPA/CARB regulations
    • Bolts on for quick and easy installation (on most vehicles)
    • Backed by a 5-year/50,000-mile warranty
    • Direct fit by vehicle year, make and model
    • 49-state legal (not legal in CA)
    • Designed and manufactured in the USA
    • SKU#: P40750056
    • Brand: Pacesetter
    • Fit Note: Mini Passenger Van, FWD
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Stainless Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    • Dimensions: Factory replacement
    (see more)
    Fits the following Toyota Sienna Years:
    • 2006 | 6 Cyl 3.3L | Limited
    • 2004-2006 | 6 Cyl 3.3L | CE, LE, XLE
    (see more)
    $478.13 List Price $564.19 Save $86.06 Availability: In Stock
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    BOSAL CATALYTIC CONVERTER ASSEMBLY

    Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. Designed and built for long life reliability.

    Specifications
    • Flange inlet
    • Flange outlet
    • Y-pipe assembly with one catalytic converter
    • Oval body
    • 2-1 inlet and single outlet configuration
    Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: BO0991606
    • Brand: Bosal
    • Fit Note: For Vehicles Originally with California emissions, With Dual Catalytic Converter System.
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Aluminized Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    • Warranty: 5-year or 25,000-mile Bosal limited warranty
     
    Fits the following Toyota Sienna Years:
    • 1999-2000 | 6 Cyl 3.0L | CE, LE
    • 1999 | 6 Cyl 3.0L | XLE
    $205.00 List Price $615.00 Save $410.00 Availability: In Stock
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    BENCHMARK CATALYTIC CONVERTER ASSEMBLY

    Benchmark catalytic converters are considered to be the industry's standard replacement catalytic converter. It is the recognized leader in fitment and durability. It features perfect fit and repeatability and its performance results are continually monitored by Benchmark's internal emissions laboratory to insure quality loadings which eliminate OBDII issues caused by many universal catalysts.

    Specifications
    • Standard assembly with one catalytic converter
    Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

    • SKU#: BEN3277
    • Brand: Benchmark
    • Fit Note: AWD
    • Product Fit: Direct Fit
    • Quantity Sold: Assembly
    • Tube Material: Aluminized Steel
    • Anticipated Ship Out Time: 1-2 Business Days
    • Warranty: 5-year or 50,000-mile Benchmark limited warranty
     
    Fits the following Toyota Sienna Years:
    • 2006 | 6 Cyl 3.3L | Limited
    • 2004-2006 | 6 Cyl 3.3L | CE, LE, XLE
    (see more)
    View Less
    For a high-performance minivan like a Toyota Sienna, only good things are expected to come from it. Thus, a Sienna that emits toxic gases could be an absolute turn-off. If your minivan has been producing bad gases lately, then it could be due to a poorly maintained Toyota Sienna catalytic converter assembly. A well-functioning catalytic converter saves the environment more than reducing plastic waste. This component is responsible for transforming your minivan's gases into less harmful chemicals, before they are released to the air. Once it wears out due to age or other factors, finding a high quality Toyota Sienna catalytic converter replacement is your next best move.

    Frequently Asked Questions

    Ask APW
    • How many miles are covered by an emissions warranty for a Toyota Sienna catalytic converter?
      Answer: The catalytic converter (or cat) of a Toyota Sienna is covered by an eight-year or 80,000 miles emission warranty. Until then the dealer can replace the cat if it wears out within the warranty coverage. But if the cat breaks down after the warranty has expired, replacing it with a high quality yet affordable aftermarket catalytic converter is the next move. Take note, however, that if the cat is replaced with an aftermarket part while the warranty still covers it and it wears out, the manufacturer of the aftermarket part should be held accountable for the product's replacement or repair, and not Toyota.
    • How would anyone know if the Toyota Sienna's catalytic converter assembly has failed and has to be replaced?
      Answer: If the catalytic converter becomes clogged or poisoned, then it should be replaced immediately. Clogging and poisoning are usually caused by using leaded gasoline or overusing certain fuel additives. Fouled plugs may also cause unburned fuel to enter the catalytic converter and overheat it. In this case, replacing the catalytic converter of the Toyota Sienna can prevent the problems from worsening.
    • The "check engine" light is on, and the Toyota Sienna's catalytic converter shows a P0420 code on its oxygen sensor. What does this code mean?
      Answer: The code P0420 indicates that the catalytic converter of the vehicle is operating below its threshold. This is often due to a bad O2 sensor, but it does not mean it needs to be replaced immediately. Checking the exhaust for leaks--specifically in the manifold and the pipes--is advised. If the O2 sensors are perfectly fine, but the "check engine" light won't turn off still, have it checked by an auto mechanic to have the engine and the catalytic converter decarbonized. This is a process to remove the carbon build-up that may be causing the catalytic converter to fail.