HomeExhaust > Catalytic ConverterCatco 2506 Catalytic Converter - Rear, Rear Left or Rear Right
Part #: 2506

Catco 2506 Catalytic Converter - Rear, Rear Left or Rear Right

Rear, Rear Left, and Rear Right
⚙️ 50 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, Dodge, Ford, GMC, Isuzu, Lincoln, Mitsubishi, and Saab, 9-7x, 900, 9000, Ascender, Dakota, Envoy, Expedition, Montero, Navigator, Rainier, S10, Sonoma, and Trailblazer
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Overview of Catco 2506 Catalytic Converter

The Catco 2506 catalytic converter is designed for direct-fit replacement on select Buick, Chevrolet, Dodge, Ford, GMC, Isuzu, Lincoln, Mitsubishi, and Saab models. Engineered with a stainless steel body and ceramic substrate, this federal/EPA compliant converter ensures reliable emissions control for vehicles like the Chevrolet Trailblazer, GMC Envoy, and Ford Expedition.

  • Stainless steel oval body measuring 12 inches long, 6.125 inches wide, and 4 inches high
  • 2.50 inch inside diameter inlet and outlet necks for precise fitment
  • One oxygen sensor port located on the passenger side
  • Ceramic substrate material for effective catalytic conversion
  • Overall length of 16 inches for direct-fit installation
  • Federal/EPA direct-fit type compliant with emissions standards

Detailed Product Description

The Catco 2506 catalytic converter features a durable stainless steel body shaped in an oval design to optimize exhaust flow and fitment. Its 2.50 inch inside diameter inlet and outlet necks provide a secure connection to the exhaust system, minimizing leaks and ensuring proper function. The ceramic substrate inside the converter facilitates the chemical reactions necessary to reduce harmful emissions. This converter includes one oxygen sensor port on the passenger side, allowing for accurate monitoring of exhaust gases. With an overall length of 16 inches and a body length of 12 inches, it is engineered for direct replacement on various models including the Buick Rainier, Dodge Dakota, and Lincoln Navigator.

Compatible Vehicles and Applications

  • Buick Rainier and 9-7x
  • Chevrolet S10, Trailblazer, and Sonoma
  • Dodge Dakota
  • Ford Expedition and Lincoln Navigator
  • GMC Envoy and Ascender
  • Isuzu Ascender
  • Mitsubishi Montero
  • Saab 900 and 9000

Common Issues Addressed by Catco 2506

  • Excessive exhaust emissions causing failed emissions tests
  • Check engine light triggered by faulty catalytic converter
  • Reduced engine performance due to clogged or damaged converter
  • Unusual exhaust odors or increased noise levels
  • Oxygen sensor errors related to converter malfunction

Installation Notes and Tips

The Catco 2506 catalytic converter is designed for direct-fit installation, matching OEM specifications for the listed vehicle models. Ensure the oxygen sensor is properly installed in the passenger side port to maintain accurate emissions monitoring. It is recommended to inspect exhaust flanges and gaskets during installation to prevent leaks. Professional installation is advised to ensure proper fit and function.

Quality Assurance and Compliance

This catalytic converter meets federal and EPA emissions standards for direct-fit applications. Constructed with high-quality stainless steel and a ceramic substrate, the Catco 2506 is built to provide consistent performance and durability. Warranty information is available from the manufacturer to cover defects in materials and workmanship.

BrandCatco
Part Number2506
Air Tube QtyNone
Body Height (IN)4
Body Length (IN)12
Body MaterialStainless steel
Body Width (IN)6.125
Inlet Type A2.50" id neck
O2 Sensor Ports1 - pass. side
Outlet Type A2.50" id neck
Overall Length (IN)16
ShapeOval
Substrate MaterialCeramic
Test Weight5.9l / 6515
TypeFederal / epa direct-fit

This part fits 50 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersWheel BasePositionNotes
2007BuickRainier4.2LL6N/AUniversal; 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.
2007ChevroletTrailblazerLT4.2LL6N/AUniversal; 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.
2007ChevroletTrailblazerLS4.2LL6N/AUniversal; 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.
2007GMCEnvoySLT4.2LL6N/AUniversal; 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.
2007GMCEnvoySLE4.2LL6N/AUniversal; 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.
2007IsuzuAscender4.2LL6113.0"N/AUniversal; 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.
2007Saab9-7x4.2LL6N/AUniversal; 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.
2006BuickRainier4.2LL6N/AUniversal; 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.
2006ChevroletTrailblazerLT4.2LL6N/AUniversal; 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.
2006ChevroletTrailblazerLS4.2LL6N/AUniversal; 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.
2006GMCEnvoySLE4.2LL6N/AUniversal; 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.
2006GMCEnvoySLT4.2LL6N/AUniversal; 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.
2006IsuzuAscender4.2LL6113.0"N/AUniversal; 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.
2006Saab9-7x4.2LL6N/AUniversal; 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.
2003ChevroletS102.2LL4N/AUniversal; 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.
2003DodgeDakota4WD3.9LV6RearUniversal; California Emissions; 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.
2003GMCSonoma2.2LL4N/AUniversal; 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.
2002ChevroletS102.2LL4N/AUniversal; 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.
2002DodgeDakota4WD3.9LV6RearUniversal; California Emissions; 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.
2002FordExpedition4WD5.4LV8Rear LeftUniversal; 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.
2002FordExpedition4WD5.4LV8Rear RightUniversal; 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.
2002GMCSonoma2.2LL4N/AUniversal; 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.
2002LincolnNavigator4WD5.4LV8Rear RightUniversal; 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.
2002LincolnNavigator4WD5.4LV8Rear LeftUniversal; 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.
2002MitsubishiMontero3.5LV6RearUniversal; 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.
2001ChevroletS102.2LL4N/AUniversal; 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.
2001DodgeDakota4WD3.9LV6RearUniversal; California Emissions; 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.
2001FordExpedition4WD5.4LV8Rear LeftUniversal; 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.
2001FordExpedition4WD5.4LV8Rear RightUniversal; 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.
2001GMCSonoma2.2LL4N/AUniversal; 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.
2001LincolnNavigator4WD5.4LV8Rear RightUniversal; 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.
2001LincolnNavigator4WD5.4LV8Rear LeftUniversal; 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.
2001MitsubishiMontero3.5LV6RearUniversal; 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.
2000ChevroletS102.2LL4N/AUniversal; 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.
2000DodgeDakota4WD3.9LV6RearUniversal; California Emissions; 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.
2000GMCSonoma2.2LL4N/AUniversal; 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.
1999ChevroletS102.2LL4N/AUniversal; 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.
1999GMCSonoma2.2LL4N/AUniversal; 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.
1998ChevroletS102.2LL4N/AUniversal; 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.
1998GMCSonoma2.2LL4N/AUniversal; 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.
1998Saab900S2.3LL4N/AUniversal; 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.
1998Saab90002.3LL4N/AUniversal; 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.
1997ChevroletS102.2LL4N/AUniversal; 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.
1997GMCSonoma2.2LL4N/AUniversal; 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.
1997Saab900S2.3LL4N/AUniversal; 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.
1997Saab90002.3LL4N/AUniversal; 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.
1996ChevroletS102.2LL4N/AUniversal; 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.
1996GMCSonoma2.2LL4N/AUniversal; 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.
1996Saab900S2.3LL4N/AUniversal; 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.
1996Saab90002.3LL4N/AUniversal; 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.

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