HomeExhaust > Catalytic ConverterEastern Convertors 41351 Catalytic Converter - Front
Part #: 41351

Eastern Convertors 41351 Catalytic Converter - Front

Direct Fit Converter, Front
3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Direct Fit Converter, Front
Fitment: Nissan, Altima
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Direct-Fit Catalytic Converter for Altima

Eastern Convertors Part Number 41351 is a Federal / EPA direct-fit undercar catalytic converter for the front position. It is built for 2019-2021 Nissan Altima applications with Federal and California emissions, giving buyers a direct replacement path for the original exhaust component.

Key Features

  • Direct-fit undercar catalytic converter for front installation
  • Federal / EPA converter type for emissions-controlled replacement
  • ECO III catalyst formulation
  • 4-bolt welded flange inlet with included inlet gasket and hardware
  • 2-bolt welded flange outlet with outlet gaskets and outlet hardware
  • One O2 sensor port for sensor integration
  • Compatible with 2019-2021 Nissan Altima front applications

Product Details

The Eastern Convertors Direct Fit Converter line is focused on OE-style exhaust replacement parts that match the original mounting layout and connection points. Part Number 41351 is engineered as a front catalytic converter for the Nissan Altima, with a direct-fit undercar design that supports straightforward replacement of the factory unit. This part cross-references Eastern Convertors 41351 for the same application.

Compatible With 2019-2021 Nissan Altima, front. The converter uses a 4-bolt welded flange at the inlet, a 2-bolt welded flange at the outlet, and includes one O2 sensor port. The ECO III catalyst type and Federal / EPA configuration make it a practical replacement for emissions-related exhaust service on the listed Altima models.

Common Issues This Part May Address

  • Failed catalytic converter efficiency codes
  • Rattling or damaged converter substrate
  • Restricted exhaust flow from a worn converter
  • Exhaust leaks at the inlet or outlet flange connections
  • Check engine light concerns related to the front converter assembly

Installation Notes

Verify the vehicle is a 2019-2021 Nissan Altima with front converter placement before ordering. Match the inlet and outlet flange styles, confirm the single O2 sensor port location, and inspect the mating exhaust surfaces for damage or corrosion before installation. Replacing worn gaskets and checking sensor connections during installation helps ensure a proper seal and accurate fit.

Quality Assurance

Eastern Convertors manufactures this direct-fit converter as an emissions replacement part for the listed application. Part Number 41351 is built to match the specified front-position fitment and connection style for 2019-2021 Nissan Altima models.

BrandEastern Convertors
Part Number41351
PositionDirect Fit Converter, Front
Converter TypeFederal / epa direct-fit undercar
California Air Resources Board (CARB) CertifiedNo
Catalyst TypeEco iii
Inlet Gasket Quantity1
Inlet HardwareYes
Inlet Type A4 bolt welded flange
O2 Sensor Ports1
Outlet Gasket2
Outlet HardwareYes
Outlet Type A2 bolt welded flange

This part fits 3 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2021NissanAltimaFWD2.5LL4FrontFederal and California Emissions; Direct Fit Converter
2020NissanAltimaFWD2.5LL4FrontFederal and California Emissions; Direct Fit Converter
2019NissanAltimaFWD2.5LL4FrontFederal and California Emissions; Direct Fit Converter

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.