HomeWalker 16991 Catalytic Converter - Right
Part #: 16991

Walker 16991 Catalytic Converter - Right

EPA, Right
24 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
EPA, Right
Fitment: Ram, ProMaster 1500, ProMaster 2500, and ProMaster 3500
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Walker EPA 16991 Catalytic Converter for Ram ProMaster

Walker EPA 16991 is a direct-fit catalytic converter built for OBDII vehicles and engineered to meet EPA standards while maintaining premium performance. It is a specific-fit replacement for select Ram ProMaster 1500, 2500, and 3500 models with right-side placement.

Key Features

  • Direct-fit, specific application for easier replacement on the correct exhaust location
  • EPA-compliant design for 1996 and newer OBDII vehicles
  • Premium-grade construction with an oval body shape
  • 2-bolt welded flange inlet and outlet for factory-style connection points
  • Inlet gasket and outlet gasket included for sealing at the connection points
  • Overall length: 18.000 in.; body dimensions: 8.400 in. long, 6.000 in. wide, 3.500 in. high
  • Cross-reference: Eastern Catalytic 20466

Product Details

This Walker Ultra Direct-Fit Catalytic Converter is designed for the right side of 2014-2021 Ram ProMaster 1500, 2014-2021 Ram ProMaster 2500, and 2014-2021 Ram ProMaster 3500. Walker EPA 16991 uses an oval ECO CARB catalyst body with welded 2-bolt flange inlet and outlet connections to match the original exhaust layout on the listed Ram ProMaster applications. The direct-fit format supports a cleaner replacement process when servicing emissions-related exhaust components on these vehicles.

What It Helps Address

  • Check engine light concerns related to catalytic converter efficiency
  • Failed emissions inspection caused by a worn or restricted converter
  • Exhaust flow issues from a damaged or deteriorated catalyst assembly
  • Leak points at the inlet or outlet flange connection
  • Replacement needs for a right-side converter on Ram ProMaster vans

Installation Notes

Confirm right-side fitment before ordering and match the vehicle year, model, and exhaust configuration to the listing. This converter uses specific-fit, welded flange connections and includes inlet and outlet gaskets; mounting hardware is not included. Verify flange alignment and exhaust condition before installation to help ensure proper sealing and fit.

Quality Assurance

Walker EPA 16991 is part of the Walker Ultra Direct-Fit Catalytic Converter line, which is built for EPA-compliant replacement on import and domestic OBDII vehicles. The design focuses on factory-style fitment and emissions-system compliance for the listed Ram ProMaster applications.

BrandWalker
Part Number16991
PositionEPA, Right
Mounting Hardware IncludedNo
Universal Or Specific FitSpecific
Grade TypePremium
Body ShapeOval
Inlet Type2 bolt welded flange
Outlet Type2 bolt welded flange
Body Height3.500
Body Length8.400
Body Width6.000
Inlet Quantity1
Outlet Quantity1
California Air Resources Board (CARB) CertifiedNo
Overall Length18.000
New York CertifiedNo
Catalyst TypeEco carb
Clamp QtyNone
Inlet GasketYes
Inlet Gasket Qty1
Inlet HardwareNo
Outlet GasketYes
Outlet Gasket Qty1
ShapeOval

This part fits 24 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2021RamProMaster 15003.6LV6FLEXRightEPA
2021RamProMaster 25003.6LV6FLEXRightEPA
2021RamProMaster 35003.6LV6FLEXRightEPA
2020RamProMaster 15003.6LV6FLEXRightEPA
2020RamProMaster 25003.6LV6FLEXRightEPA
2020RamProMaster 35003.6LV6FLEXRightEPA
2019RamProMaster 15003.6LV6FLEXRightEPA
2019RamProMaster 25003.6LV6FLEXRightEPA
2019RamProMaster 35003.6LV6FLEXRightEPA
2018RamProMaster 15003.6LV6FLEXRightEPA
2018RamProMaster 25003.6LV6FLEXRightEPA
2018RamProMaster 35003.6LV6FLEXRightEPA
2017RamProMaster 15003.6LV6FLEXRightEPA
2017RamProMaster 25003.6LV6FLEXRightEPA
2017RamProMaster 35003.6LV6FLEXRightEPA
2016RamProMaster 15003.6LV6FLEXRightEPA
2016RamProMaster 25003.6LV6FLEXRightEPA
2016RamProMaster 35003.6LV6FLEXRightEPA
2015RamProMaster 15003.6LV6FLEXRightEPA
2015RamProMaster 25003.6LV6FLEXRightEPA
2015RamProMaster 35003.6LV6FLEXRightEPA
2014RamProMaster 15003.6LV6FLEXRightEPA
2014RamProMaster 25003.6LV6FLEXRightEPA
2014RamProMaster 35003.6LV6FLEXRightEPA

* 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:

20466

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