OE Quality
60-Day Returns

Walker 83177 Catalytic Converter - Front
CARB-Compliant Direct-Fit Converter
Walker CalCat 83177 is a direct-fit catalytic converter built for specific front-position applications on the 2008-2009 Honda Accord and 2009 Acura TSX. It is CARB certified for use in California and other states that require CARB-compliant replacement converters, with an OE-style fit for the listed vehicles.
Key Features
- Direct-fit catalytic converter for specific applications
- CARB certified for regulated emissions markets
- Stainless steel body with ceramic substrate
- Round body design with OE-style flange connections
- Pre- and post-catalyst oxygen sensor locations
- Includes front gasket for listed fitments
- Walker CalCat line focuses on CARB-compliant replacement converters
Product Details
Walker CalCat 83177 is designed for front exhaust placement on the 2008 Honda Accord, 2009 Honda Accord, and 2009 Acura TSX. The converter uses a 6-bolt welded flange inlet and a 3-bolt welded flange outlet, with a stainless steel body and ceramic substrate for a direct replacement layout. The overall length is 16.5 inches, and the round body measures 4.125 inches high by 4.125 inches wide with a 4.75-inch body length. This part number is built to meet CARB standards and is legal for sale and use in California and other states that require CARB-compliant replacement converters. Walker 83177 is a fitment-specific solution for drivers searching for a front catalytic converter for 2008-2009 Honda Accord or 2009 Acura TSX applications.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Uses
- Replacing a failed front catalytic converter on a 2008 Honda Accord
- Replacing a front catalytic converter on a 2009 Honda Accord
- Replacing a front catalytic converter on a 2009 Acura TSX
- Addressing emissions test failures related to catalyst efficiency
- Restoring proper exhaust flow after converter damage or clogging
Installation Notes
Verify the engine family number and CARB Executive Order details before installation. This converter is a direct-fit design for the listed front-position applications and uses welded flange connections. Additional part 31556 is noted in the fitment data for installation completion. Confirm oxygen sensor placement, gasket condition, and flange alignment during exhaust service.
Quality Assurance
Walker CalCat converters are designed, tested, and validated to meet CARB standards for the listed applications. Part number 83177 is built for specific vehicle fitment and emissions compliance in regulated markets.
| Brand | Walker |
|---|---|
| Part Number | 83177 |
| Position | CalCat, Front |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Inlet Type | 4 bolt welded flange |
| Outlet Type | 3 bolt welded flange |
| Body Height | 4.125 |
| Body Length | 4.75 |
| Body Length | 4.750 |
| Body Width | 4.125 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | Yes |
| Substrate Material | Ceramic |
| Overall Length | 16.5 |
| Overall Length | 16.500 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 1 |
| Inlet 1 Type | 6 bolt welded flange |
| Inlet Type | 6 bolt welded flange |
| Max Year Covered | 2009 |
| Min Year Covered | 2008 |
| Most Popular Make / Model | Honda accord |
| Most Popular Year | 2008 |
| Outlet 1 Type | 3 bolt welded flange |
| Outlet Type | 3 bolt welded flange |
| Oxygen Sensor Location | Pre and post catalyst |
| Product Grade | Economy |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Acura | TSX | 2.4L | L4 | Front | CARB Executive Order D-182-62; Engine Family Number (EFN) 9HNXV02.44B9; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat |
| 2009 | Honda | Accord | 2.4L | L4 | Front | CARB Executive Order D-182-62; Engine Family Number (EFN) 9HNXV02.4YB3; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat |
| 2008 | Honda | Accord | 2.4L | L4 | Front | CARB Executive Order D-182-62; Engine Family Number (EFN) 8HNXV02.4TKR; Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details.; Additional Part(s) Needed To Complete Installation: 31556; Includes Front Gasket; Direct Fit Type; CalCat |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.