HomeExhaust > Catalytic ConverterWalker 16798 Catalytic Converter
Part #: 16798

Walker 16798 Catalytic Converter

EPA
⚙️ 7 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦EPA
🚗Fitment: Nissan, Sentra
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🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker EPA Catalytic Converter 16798

The Walker EPA Catalytic Converter 16798 is designed specifically for Nissan Sentra models, providing a reliable solution for exhaust emission control. Crafted with durable stainless steel and a ceramic substrate, this catalytic converter meets regular grade standards for effective performance.

  • Specific fit for Nissan Sentra vehicles
  • Constructed with stainless steel body material
  • Round body shape with dimensions: 7.25" length, 4" width, 4" height
  • Single inlet and outlet with 2 bolt welded flange connections
  • Includes two ceramic substrates for emission reduction
  • Oxygen sensor located post catalyst for accurate monitoring
  • Overall length of 33.5" ensures proper fitment in exhaust system

Detailed Product Description

The Walker EPA catalytic converter part number 16798 is engineered to fit Nissan Sentra models with precision. Its stainless steel construction offers resistance to corrosion and heat, ensuring durability over time. The round body shape and specific dimensions allow for a direct replacement without modification. Featuring a 2 bolt welded flange inlet and outlet, this converter integrates seamlessly into the exhaust system. The ceramic substrate inside the converter facilitates the chemical reactions necessary to reduce harmful emissions. The oxygen sensor location post catalyst supports accurate emissions monitoring and engine management.

Walker EPA Product Line Information

The EPA product line from Walker focuses on meeting environmental regulations with components designed for specific vehicle applications. This catalytic converter aligns with the EPA standards for emission control, providing a balance between performance and compliance. While not CARB certified, the EPA line offers a dependable option for Nissan Sentra owners seeking a direct-fit replacement part.

Common Applications and Issues Addressed

  • Replacement for damaged or clogged catalytic converters
  • Restores proper exhaust flow and reduces emissions
  • Resolves check engine light issues related to catalyst efficiency
  • Improves vehicle emission compliance for Nissan Sentra
  • Addresses exhaust leaks caused by faulty converter flanges

Installation Notes and Tips

Installation of the Walker EPA catalytic converter 16798 requires removal of the existing converter with matching 2 bolt welded flange connections. Ensure the oxygen sensor is properly reinstalled in the post catalyst location to maintain accurate engine diagnostics. This part is a specific fit for Nissan Sentra models, so verify vehicle compatibility before installation. Mounting hardware is not included and may need to be sourced separately.

Quality Assurance and Warranty

Walker manufactures this catalytic converter with quality materials including stainless steel and ceramic substrates to ensure durability and performance. While specific warranty details are not provided, Walker products typically adhere to industry standards for reliability and fitment. Confirm warranty coverage with the supplier or manufacturer prior to purchase.

BrandWalker
Part Number16798
PositionEPA
Mounting Hardware IncludedNo
Universal Or Specific FitSpecific
Grade TypeRegular
Body ShapeRound
Body Height4
Body Length7.25
Body Width4
Inlet Quantity1
Body MaterialStainless steel
Outlet Quantity1
California Air Resources Board (CARB) CertifiedNo
Overall Length33.5
Air TubeNo
Air Tube CountNo
Converter Quantity2
Inlet 1 Type2 bolt welded flange
Inlet Type2 bolt welded flange
Outlet 1 Type2 bolt welded flange
Outlet Type2 bolt welded flange
Oxygen Sensor LocationPost catalyst
Substrate MaterialCeramic

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019NissanSentra1.8LL4N/AEPA
2018NissanSentra1.8LL4N/AEPA
2017NissanSentra1.8LL4N/Awith Federal 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
2016NissanSentra1.8LL4N/Awith Federal 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
2015NissanSentra1.8LL4N/Awith Federal 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
2014NissanSentra1.8LL4N/Awith Federal 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
2013NissanSentra1.8LL4N/Awith Federal 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

* 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:

4069552511608436

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.