How Do You Replace a Catalytic Converter on Subaru Outback?

The catalytic converter is an emission control device installed in the exhaust system that reduces pollutants from the exhaust gas stream. It is most efficient at capturing and storing oxygen when it converts the exhaust gases of an intake charge that's mixed at the ideal (stoichiometric) air/fuel ratio of 14.7:1. To replace either catalyst, non-turbocharged models must replace the entire catalyst assembly, while turbocharged models must remove the engine cover, intercooler, engine under cover, turbocharger upper cover, center exhaust pipe, rear oxygen sensor, small bracket on the center exhaust pipe, transaxle, hanger bracket, front catalytic converter from the rear catalytic converter, right exhaust manifold heat shield, front exhaust manifold-to joint pipe, and pre-catalytic converter/joint pipe. Installation is the reverse of removal, using new gaskets at the flange.

Genuine Subaru Outback Catalytic Converter

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7 Catalytic Converters found

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Subaru Outback Rear Catalytic Converter
Part Number: 44111AC242
$496.47 MSRP: $725.83
You Save: $229.36 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Converter Complete Front-Rear; Catalytic Converter, Converter
- Position: Front And Rear
- Replaces: 44111AC241, 44111AC240
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1999 Subaru Outback | Brighton, GT, L, LS, Out Back, Post, SUS | 2.2L H4, 2.2L H4 (New EVAPO), 2.5L H4
View related parts
Subaru Outback Rear Catalytic Converter
Part Number: 44111AC240
$496.47 MSRP: $725.83
You Save: $229.36 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Complete Front-Rear
- Position: Front And Rear
- Replaced by: 44111AC242
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1997 Subaru Outback | Brighton, L, LS, Out Back, Post | 2.2L H4 , 2.2L H4 (New EVAPO)
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Subaru Outback Front Catalytic Converter
Part Number: 44111AC241
$496.47 MSRP: $725.83
You Save: $229.36 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter Complete Front-Rear
- Position: Front And Rear
- Replaced by: 44111AC242
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Outback | Brighton, GT, L, LS, Out Back, Post, SUS | 2.2L H4 , 2.2L H4 (New EVAPO), 2.5L H4
View related parts
Subaru Outback Rear Catalytic Converter
Part Number: 44111AC350
Product Specifications
- Other Name: Converter Complete Front-Rear; Converter
- Position: Front And Rear
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999 Subaru Outback | Brighton, L, Post | 2.2L H4 Series
View related parts
Subaru Outback Front Catalytic Converter
Part Number: 44111AC370
Product Specifications
- Other Name: Converter Complete Front-Rear; Converter
- Position: Front And Rear
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999 Subaru Outback | Brighton, L, Post | 2.2L H4 Series
View related parts
Subaru Outback Front Catalytic Converter
Part Number: 44111AC170
Product Specifications
- Other Name: Converter Complete Front-Rear
- Position: Front And Rear
- Replaced by: 44111AC172
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1998 Subaru Outback | Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4 , 2.2L H4 (New EVAPO), 2.5L H4
View related parts
Subaru Outback Front Catalytic Converter
Part Number: 44111AC172
Product Specifications
- Other Name: Converter Complete Front-Rear; Catalytic Converter, Converter, Converter & Pipe
- Position: Front And Rear
- Replaces: 44111AC171, 44111AC170
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1999 Subaru Outback | Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4, 2.2L H4 (New EVAPO), 2.5L H4

Subaru Outback Catalytic Converter

Subaru Outback Catalytic Converters are parts of the exhaust emission control system of vehicles which help in converting toxic gases such as Carbon Monoxide, Hydrocarbons, and Oxides of Nitrogen to harmless products such as water, Carbon Dioxide, and Nitrogen. These chemical reactions take place inside the converter and the converter uses some catalysts such as platinum, palladium as well as rhodium. Various sorts of Catalytic Converters, including high-flow converters, are introduced to improve engine power due to the facilitation of lower backpressure and restriction. Some of the dating indications of a failing converter include poor pick up of the engine, dark colouration of the exhaust fumes, and a typical smell of sulphur. Higher flow converters are used to increase power and depend on your car's modification levels or if you own an older car with a small converter.

Our website stands as the go-to online destination for OEM Subaru Outback Catalytic Converter. With complete lines of genuine Subaru Outback Catalytic Converter available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Outback Catalytic Converter Parts Questions & Experts Answers

Rear Catalytic Converter
44111AC240
Q: How Do You Replace a Catalytic Converter on Subaru Outback?
A: The catalytic converter is an emission control device installed in the exhaust system that reduces pollutants from the exhaust gas stream. It is most efficient at capturing and storing oxygen when it converts the exhaust gases of an intake charge that's mixed at the ideal (stoichiometric) air/fuel ratio of 14.7:1. To replace either catalyst, non-turbocharged models must replace the entire catalyst assembly, while turbocharged models must remove the engine cover, intercooler, engine under cover, turbocharger upper cover, center exhaust pipe, rear Oxygen Sensor, small bracket on the center exhaust pipe, transaxle, hanger bracket, front catalytic converter from the rear catalytic converter, right exhaust manifold heat shield, front exhaust manifold-to joint pipe, and pre-catalytic converter/joint pipe. Installation is the reverse of removal, using new gaskets at the flange.