AP Exhaust 641177 Catalytic Converter - Front
OE Quality 60-Day Returns
AP Exhaust

AP Exhaust 641177 Catalytic Converter - Front

Brand AP Exhaust 641177
Position Front
Body Material Stainless steel
Inlet Gasket Not required
Inlet Hardware None
Inlet Type A 2 bolt welded flange w/ spherical flare
Inlet Type B 2 bolt welded flange w/ spherical flare
O2 Sensor Ports 2
Outlet Gasket Not required
Outlet Hardware Yes
Outlet Type A 2.50" od pipe
Overall Length (IN) 41
Substrate Material Ceramic
Type Federal / epa direct-fit
Fits Jeep · 8 vehicles

Federal / EPA direct-fit. Built to exact OE dimensions for straightforward installation.

Stainless steel body. Helps resist corrosion for long-term durability.

Ceramic substrate. Proprietary chemistry improves converter efficiency.

$521.63Free shipping
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OE-Fit Catalytic Converter for Jeep Grand Cherokee

AP Exhaust 641177 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It uses a stainless steel body with a ceramic substrate and is engineered for the 2001-2004 Jeep Grand Cherokee in front or pre-cat applications listed below.

Key Features

  • Federal / EPA direct-fit catalytic converter
  • Stainless steel body for corrosion resistance
  • Ceramic substrate material
  • 2 bolt welded flange with spherical flare inlet design
  • 2.50" OD pipe outlet
  • 2 O2 sensor ports
  • Overall length: 41 inches
  • Outlet hardware included; inlet gasket not required

Fitment Details

Compatible with 2001 Jeep Grand Cherokee, front and N/A pre-cat Federal emissions applications. Compatible with 2002-2004 Jeep Grand Cherokee, front Federal and California emissions applications, including direct-fit pre-cat listings where noted. AP Exhaust 641177 is built to match OE dimensions for these Jeep Grand Cherokee applications.

What This Part Helps Address

  • Failed emissions test results tied to a worn catalytic converter
  • Check engine light concerns related to catalyst efficiency codes
  • Restricted exhaust flow from a deteriorated substrate
  • Exhaust leaks at the converter connection points
  • Fitment issues when replacing the original front converter on a Jeep Grand Cherokee

Installation Notes

Verify the vehicle’s emissions label before ordering, since this part is listed for Federal and California emissions on specific Jeep Grand Cherokee applications and is not for sale or use on vehicles licensed in CA, CO, ME, or NY. Confirm the inlet flange style, outlet pipe size, and O2 sensor port count before installation. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

AP Exhaust uses proprietary substrate chemistry and advanced manufacturing methods, including automated workstations, spinner welding equipment, and high-speed production lines, to build converters to OE dimensions and fitment. Part number 641177 is produced to support consistent installation and emissions-system performance on the listed Jeep Grand Cherokee applications.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2004JeepGrand Cherokee4.0LL6FrontDirect Fit Pre-Cat; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2004JeepGrand Cherokee4.0LL6FrontDirect Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2003JeepGrand Cherokee4.0LL6FrontDirect Fit Pre-Cat; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2003JeepGrand Cherokee4.0LL6FrontDirect Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2002JeepGrand Cherokee4.0LL6FrontDirect Fit Pre-Cat; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2002JeepGrand Cherokee4.0LL6FrontDirect Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2001JeepGrand Cherokee4.0LL6N/ADirect Fit Pre-Cat; (Federal Emissions); Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.
2001JeepGrand Cherokee4.0LL6FrontDirect Fit Pre-Cat; Federal Emissions; Federal Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME and NY. Restrictions may apply in other states. Check with your state authority for details.