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

The service of Three-Way Catalytic Converter (TWC) System begins with vehicle jacking and converter cooling protocol. Begin by disconnecting the heated oxygen sensor and carefully rotating the wire sensor counterclockwise 3 and 1/2 turns before installation. Additionally check that the wire remains untwisted after installation and re-install the oxygen sensor if necessary. Proceed by removing two bolts holding the exhaust pipe stay which require torquing to 33 Nm (330 kg.cm, 24 ft.lb) before disconnecting the bracket through removal of its two bolts while maintaining the same torque specification. Remove two bolts along with two nuts holding the front exhaust pipe to the tailpipe with a torque of 56 Nm (570 kg.cm, 41 ft.lb) and four nuts securing the front exhaust pipe to the exhaust manifolds at 62 Nm (630 kg.cm, 46 ft.lb). The front exhaust pipe (converter) must come off together with its 3 gaskets before new gaskets can be used for replacement. The installation requires you to perform the opposite actions compared to uninstallation.

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%)
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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 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%)
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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

Choose genuine Catalytic Converter that pass strict quality control tests. You can trust the top quality and lasting durability. Shopping for OEM Catalytic Converter for your Toyota Sienna? Our website is your one-stop destination. We stock an extensive selection of genuine Toyota Sienna parts. The price is affordable so you can save more. It only takes minutes to browse and find the exact fit. Easily add to cart and check out fast. Our hassle-free return policy will keep you stress-free. We process orders quickly for swift delivery. Your parts will arrive faster, so you can get back on the road sooner.

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:
The service of Three-Way Catalytic Converter (TWC) System begins with vehicle jacking and converter cooling protocol. Begin by disconnecting the heated Oxygen Sensor and carefully rotating the wire sensor counterclockwise 3 and 1/2 turns before installation. Additionally check that the wire remains untwisted after installation and re-install the oxygen sensor if necessary. Proceed by removing two bolts holding the Exhaust Pipe stay which require torquing to 33 Nm (330 kg.cm, 24 ft.lb) before disconnecting the bracket through removal of its two bolts while maintaining the same torque specification. Remove two bolts along with two nuts holding the front exhaust pipe to the tailpipe with a torque of 56 Nm (570 kg.cm, 41 ft.lb) and four nuts securing the front exhaust pipe to the exhaust manifolds at 62 Nm (630 kg.cm, 46 ft.lb). The front exhaust pipe (converter) must come off together with its 3 gaskets before new gaskets can be used for replacement. The installation requires you to perform the opposite actions compared to uninstallation.