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Walker 84266 Catalytic Converter - Rear
CARB-Compliant Rear Catalytic Converter
Walker CalCat 84266 is a direct-fit catalytic converter built for CARB-regulated applications and OE-style exhaust alignment. It is designed for the rear position on select Buick Verano models from 2012-2017, with fitment-specific engineering for a precise installation and emissions compliance.
Walker CalCat direct-fit converters are part of the CalCat line, which focuses on CARB-certified replacement converters for OBDII and non-OBD vehicles. This makes the 84266 a practical choice for drivers needing a replacement catalytic converter that matches the original exhaust layout and regulatory requirements.
- CARB certified for use in California and other CARB-compliant states
- Direct-fit design for OE-style exhaust routing
- Stainless steel body construction
- Ceramic substrate material
- Round body shape with 3-bolt welded flange inlet and 2-bolt welded flange outlet
- Pre-catalyst oxygen sensor location
- Specific fit application for rear installation
Fitment Details
Compatible With:
- Fits 2017 Buick Verano, rear
- Fits 2016 Buick Verano, rear
- Fits 2015 Buick Verano, rear
- Fits 2014 Buick Verano, rear
- Fits 2013 Buick Verano, rear
- Fits 2012 Buick Verano, rear
This part cross-references Monroe Shocks & Struts (e.g., 557914) for the same application.
Common Replacement Uses
- Replacing a failed rear catalytic converter on a Buick Verano
- Addressing emissions test failures tied to catalyst efficiency
- Restoring proper exhaust flow after converter damage or clogging
- Correcting exhaust leaks at flange-connected converter joints
- Replacing a CARB-regulated converter with a direct-fit unit
Installation Notes
Installation is specific to the listed Buick Verano rear applications and should follow the vehicle’s exhaust configuration. An exhaust gasket is recommended, and additional parts 31589 and 31534 are noted for completing installation. Verify flange alignment, sensor placement, and state emissions requirements before installation.
Quality Assurance
Walker CalCat converters are designed, tested, and validated to meet CARB standards for regulated replacement applications. Part number 84266 is engineered to deliver OE-style fitment and emissions compliance for the listed Buick Verano models.
| Brand | Walker |
|---|---|
| Part Number | 84266 |
| Position | CalCat, Rear |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Inlet Type | 3 bolt welded flange |
| Outlet Type | 2 bolt welded flange |
| Body Height | 4.02 |
| Body Height | 4.020 |
| Body Length | 8 |
| Body Length | 8.000 |
| Body Width | 4.02 |
| Body Width | 4.020 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | Yes |
| Substrate Material | Ceramic |
| Overall Length | 37.5 |
| Overall Length | 37.500 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 1 |
| Inlet 1 Type | 3 bolt welded flange |
| Inlet Type | 3 bolt welded flange |
| Max Year Covered | 2016 |
| Min Year Covered | 2012 |
| Most Popular Make / Model | Buick verano |
| Most Popular Year | 2013 |
| Outlet 1 Outside Diameter | 2.111 |
| Outlet 1 Type | 2 bolt welded flange |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) HGMXJ02.4199; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
| 2016 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) GGMXJ02.4199; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
| 2015 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) FGMXJ02.4199; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
| 2014 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) EGMXJ02.4199; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
| 2013 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) DGMXJ02.4151; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
| 2012 | Buick | Verano | 2.4L | L4 | Rear | CARB Executive Order D-182-72; Engine Family Number (EFN) CGMXJ02.4151; 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.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31589 and 31534; Direct Fit Type; CalCat |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.