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Walker 16799 Catalytic Converter - Rear
| Brand | Walker 16799 |
|---|---|
| Position | Rear |
| Mounting Hardware Included | No |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Round |
| Body Height | 4 |
| Body Length | 8 |
| Body Width | 4 |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Overall Length | 27.75 |
| Air Tube | No |
| Air Tube Count | No |
| Converter Quantity | 1 |
| Inlet 1 Type | 2 bolt welded flange |
| Inlet Type | 2 bolt welded flange |
| Outlet 1 Type | 2 bolt welded flange |
| Outlet Type | 2 bolt welded flange |
| Oxygen Sensor Location | Pre catalyst |
| Substrate Material | Ceramic |
| Product line | EPA |
| Fits | Nissan · 7 vehicles |
Direct-fit design. Specific fit for easier installation with no guesswork.
Stainless steel body. Resists corrosion while maintaining a durable exhaust structure.
Ceramic substrate. Helps deliver efficient catalytic performance and compliance.
Cross-references AP Exhaust 644131, 52272 and 52709 for the same application. See all 4.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker EPA Direct-Fit Catalytic Converter
Walker EPA Part Number 16799 is a direct-fit catalytic converter built for specific applications and engineered to meet EPA standards. It is designed for rear-position use on Nissan Sentra models listed below, with a stainless steel body and ceramic substrate for dependable exhaust aftertreatment performance.
The Walker EPA product line focuses on direct-fit replacement converters for OBDII vehicles, giving buyers an emissions-compliant option for import and domestic applications where EPA Federal Emission equipment is required. This unit is a specific-fit replacement for the Nissan Sentra rear converter application and uses 2-bolt welded flange connections for installation alignment.
Key Features
- Walker EPA catalytic converter, part number 16799
- Specific-fit design for direct replacement
- Stainless steel body construction
- Ceramic substrate material
- Round body shape with 2-bolt welded flange inlet and outlet
- Rear position application for select Nissan Sentra models
- EPA-compliant design for Federal Emission applications
- Oxygen sensor location: pre-catalyst
Fitment Details
- Fits 2018-2019 Nissan Sentra, rear.
- Fits 2013-2017 Nissan Sentra, rear, with California Emission System; not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only.
What This Part Helps Address
- Failed catalytic converter emissions testing
- Check engine light concerns related to catalyst efficiency
- Restricted exhaust flow from a worn or damaged converter
- Replacement needs for rear exhaust emissions control on Nissan Sentra models
- Direct-fit replacement requirements for EPA Federal Emission applications
Installation Notes
Confirm rear-position fitment before ordering and match the vehicle’s emission system to the listing notes. Exhaust gasket is recommended, and additional parts are needed to complete installation: 31364 and 31372. This part cross-references AP Exhaust 644131 for the same application.
Quality Assurance
Walker designs this EPA line for compliance-focused replacement use on 1996-and-newer OBDII vehicles. Part number 16799 is built as a direct-fit catalytic converter for the specified Nissan Sentra applications and uses materials selected for exhaust system durability and emissions control.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Nissan | Sentra | 1.8L | L4 | Rear | EPA |
| 2018 | Nissan | Sentra | 1.8L | L4 | Rear | EPA |
| 2017 | Nissan | Sentra | 1.8L | L4 | Rear | with California Emission System; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31364 and 31372; Ultra Direct Fit Type; EPA |
| 2016 | Nissan | Sentra | 1.8L | L4 | Rear | with California Emission System; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31364 and 31372; Ultra Direct Fit Type; EPA |
| 2015 | Nissan | Sentra | 1.8L | L4 | Rear | with California Emission System; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31364 and 31372; Ultra Direct Fit Type; EPA |
| 2014 | Nissan | Sentra | 1.8L | L4 | Rear | with California Emission System; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31364 and 31372; Ultra Direct Fit Type; EPA |
| 2013 | Nissan | Sentra | 1.8L | L4 | Rear | with California Emission System; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31364 and 31372; Ultra Direct Fit Type; EPA |
| No rows match your filter. | ||||||