How to service and repair the Three-Way Catalytic Converter (TWC) System on Toyota Sienna?

To maintain the Three-Way Catalytic Converter (TWC) System, have the vehicle raised and make sure that the converter is cool. Un-hook the heated oxygen sensor, making sure it is installed correctly. Unscrew the bolts and nuts that hold the parts of the exhaust together, and extract the front exhaust pipe, including the gaskets, which are replaced in the replacement. Install in the opposite order.

OEM Toyota Sienna Catalytic Converter

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31 Catalytic Converters found

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Toyota Sienna Exhaust Manifold, Passenger Side
Part Number: 17140-0P090
$654.54 MSRP: $959.24
You Save: $304.70 (32%)
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Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Right; Manifold Sub-Assembly, Exhaust, Passenger Side
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2010 Toyota Sienna | CE, LE, Limited, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Exhaust Manifold, Driver Side
Part Number: 17150-31270
$1118.42 MSRP: $1639.05
You Save: $520.63 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold Converter; Manifold Sub-Assembly, Exhaust, Driver Side
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2009 Toyota Sienna | CE, LE, Limited, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Exhaust Manifold, Driver Side
Part Number: 17150-0P200
$784.27 MSRP: $1149.36
You Save: $365.09 (32%)
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Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold Converter; Manifold Sub-Assembly, Exhaust, Driver Side
- Position: Driver Side
- Replaces: 17150-31650
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Manifold Sub-Assembly, Exhaust, Passenger Side
Part Number: 17140-0P150
$1182.09 MSRP: $1732.37
You Save: $550.28 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold; Catalytic Converter; Exhaust Manifold
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011 Toyota Sienna | Base, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Manifold Assembly, Exhaust
Part Number: 17140-0P331
$903.56 MSRP: $1324.18
You Save: $420.62 (32%)
Ships in 1 Business Day
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Product Specifications
- Other Name: MANIFOLD ASSY, EXHAU; Catalytic Converter; Exhaust Manifold
- Position: Passenger Side
- Replaces: 17140-0P330
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2017-2020 Toyota Sienna | L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 6 Cyl 3.5 L GAS
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Toyota Sienna Exhaust Manifold, Passenger Side
Part Number: 17140-0P080
$1182.09 MSRP: $1732.37
You Save: $550.28 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Right; Manifold; Manifold Sub-Assembly, Exhaust, Passenger Side
- Manufacturer Note: (L)
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2010 Toyota Sienna | CE, LE, Limited, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0V080
$1170.74 MSRP: $1571.47
You Save: $400.73 (26%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2012 Toyota Sienna | Base, LE | 4 Cyl 2.7 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0P281
$250.81 MSRP: $328.00
You Save: $77.19 (24%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Crossover Pipe, Front; Exhaust Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2015-2016 Toyota Sienna | L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0P231
$182.54 MSRP: $238.72
You Save: $56.18 (24%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Crossover Pipe, Front; Exhaust Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2015-2016 Toyota Sienna | L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0P230
$246.97 MSRP: $322.97
You Save: $76.00 (24%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Crossover Pipe, Front; Exhaust Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | Base, L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0P582
$207.59 MSRP: $271.47
You Save: $63.88 (24%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Pipe; Connector Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2017-2020 Toyota Sienna | L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 6 Cyl 3.5 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0P280
$274.93 MSRP: $359.54
You Save: $84.61 (24%)
ADD TO CART
Product Specifications
- Other Name: Pipe Assembly, Exhaust; Exhaust Crossover Pipe, Front; Exhaust Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | Base, L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
View related parts
Toyota Sienna Catalytic Converter, Driver Side
Part Number: 17150-0P331
$903.56 MSRP: $1324.18
You Save: $420.62 (32%)
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Exhaust Manifold
- Position: Driver Side
- Replaces: 17150-0P330
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2017-2020 Toyota Sienna | L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 6 Cyl 3.5 L GAS
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Toyota Sienna Catalytic Converter, Passenger Side
Part Number: 17140-0P160
$613.34 MSRP: $898.86
You Save: $285.52 (32%)
ADD TO CART
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Right; Exhaust Manifold; Manifold Sub-Assembly, Exhaust, Passenger Side
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011 Toyota Sienna | Base, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
View related parts
Toyota Sienna Front Pipe
Part Number: 17410-0A310
Product Specifications
- Other Name: Catalytic Converter; Exhaust Pipe; Converter & Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
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Toyota Sienna Front Pipe
Part Number: 17410-0A120
Product Specifications
- Other Name: Pipe Assembly, Exhaust; Catalytic Converter; Exhaust Pipe; Converter & Pipe; Pipe Assembly, Exhaust, Front
- Position: Front
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2000 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
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Toyota Sienna Exhaust Manifold, Passenger Side
Part Number: 17141-20060
Product Specifications
- Other Name: Manifold, Exhaust, R; Exhaust Manifold, Right; Manifold Sub-Assembly, Exhaust, Passenger Side
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2001 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
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Toyota Sienna Catalytic Converter, Driver Side
Part Number: 17150-0P250
$1000.26 MSRP: $1465.90
You Save: $465.64 (32%)
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold Converter; Exhaust Manifold, Driver Side; Catalytic Converter with Integrated Exhaust Manifold.
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2012-2016 Toyota Sienna | Base, L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
View related parts
Toyota Sienna Front Pipe
Part Number: 17410-0A203
Product Specifications
- Other Name: Pipe Assembly, Exhaust; Catalytic Converter; Exhaust Pipe; Converter & Pipe; Pipe Assembly, Exhaust, Front
- Manufacturer Note: CALIFORNIA SPEC
- Position: Front
- Replaces: 17410-0A202
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1999-2001 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0 L GAS
View related parts
Toyota Sienna Exhaust Manifold, Driver Side
Part Number: 17150-0P090
$1002.87 MSRP: $1469.72
You Save: $466.85 (32%)
Product Specifications
- Other Name: Manifold Assembly, Exhaust; Catalytic Converter with Integrated Exhaust Manifold, Left; Manifold Converter; Manifold Sub-Assembly, Exhaust, Driver Side
- Manufacturer Note: MARK L0P090
- Position: Driver Side
- Replaces: 17150-31150
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2009 Toyota Sienna | CE, LE, Limited, XLE | 6 Cyl 3.5 L GAS

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Toyota Sienna Catalytic Converter

If you're thinking about purchasing OEM parts for your Toyota Sienna, our website is your one-stop destination. We stock an extensive selection of genuine Toyota Sienna Catalytic Converter at pocket-friendly prices. Plus, we guarantee a swift delivery and a hassle-free return policy for your convenience.

Toyota Sienna Catalytic Converter Parts and Q&A

Manifold Sub-Assembly, Exhaust, Passenger Side
17104-20010
Q: How to service and repair the Three-Way Catalytic Converter (TWC) System on Toyota Sienna?
A: To maintain the Three-Way Catalytic Converter (TWC) System, have the vehicle raised and make sure that the converter is cool. Un-hook the heated Oxygen Sensor, making sure it is installed correctly. Unscrew the bolts and nuts that hold the parts of the exhaust together, and extract the front Exhaust Pipe, including the gaskets, which are replaced in the replacement. Install in the opposite order.