HomeExhaust > Catalytic ConverterAP Exhaust 912166 Catalytic Converter - Right
Part #: 912166

AP Exhaust 912166 Catalytic Converter - Right

6GMXT06.0394, Right
⚙️ 4 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$625.11Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦6GMXT06.0394, Right
🚗Fitment: Hummer, H2
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of AP Exhaust Catalytic Converter 912166

The AP Exhaust catalytic converter part number 912166 is designed specifically for the Hummer H2, providing a direct-fit replacement that meets emissions standards. Constructed with durable stainless steel and a ceramic substrate, this converter ensures reliable performance and longevity.

  • Body material: stainless steel for corrosion resistance
  • Carb compliant direct-fit catalytic converter
  • Includes 2 O2 sensor ports for accurate emissions monitoring
  • Inlet type: 3 bolt welded flange; outlet type: 2 bolt welded flange
  • Overall length of 39.75 inches for precise fitment
  • Meets Executive Order D-280-101 for emissions compliance
  • Includes 1 inlet gasket; no outlet gasket or hardware included

Details on the 5GMXT06.0194 Product Line

The 5GMXT06.0194 product line by AP Exhaust focuses on carb compliant direct-fit catalytic converters engineered for specific vehicle applications. This line emphasizes exact fitment and emissions compliance, making it suitable for vehicles like the Hummer H2 that require precise replacement parts meeting regulatory standards.

Product Description and Features

This catalytic converter features a stainless steel body that resists rust and corrosion, extending the service life of the part. The ceramic substrate inside efficiently reduces harmful emissions by converting exhaust gases into less harmful substances. The converter includes two O2 sensor ports, allowing for proper sensor installation and accurate engine management system feedback. The inlet and outlet flanges are welded with bolt patterns (3-bolt inlet and 2-bolt outlet) designed to match the Hummer H2 exhaust system, ensuring a secure and leak-free connection. With an overall length of 39.75 inches, this converter fits directly into the exhaust line without modification.

Compatible Vehicles and Common Applications

  • Replacement for faulty or clogged catalytic converters on Hummer H2 models
  • Resolves issues related to failed emissions tests
  • Addresses exhaust leaks caused by damaged flanges or gaskets
  • Improves engine performance by restoring proper exhaust flow
  • Helps reduce harmful exhaust emissions to meet regulatory requirements

Installation Notes and Tips

This AP Exhaust catalytic converter 912166 is designed as a direct-fit replacement for the Hummer H2, simplifying installation. It includes one inlet gasket but does not come with installation hardware or an outlet gasket, so ensure you have the necessary bolts and gaskets on hand. The 3 bolt welded flange on the inlet and 2 bolt welded flange on the outlet require proper alignment during installation to prevent exhaust leaks. It is recommended to inspect and replace any worn mounting hardware and gaskets to ensure a secure fit.

Quality Assurance and Compliance

The catalytic converter meets Executive Order D-280-101, confirming its compliance with California emissions standards. Manufactured by Airtek, Inc., this part adheres to strict quality controls to ensure durability and performance. The stainless steel construction and ceramic substrate provide long-lasting operation under normal driving conditions.

BrandAP Exhaust
Part Number912166
Position6GMXT06.0394, Right
Body MaterialStainless steel
Executive OrderD-280-101
Inlet Gasket1
Inlet HardwareNone
Inlet Type A3 bolt welded flange
Issued CompanyAirtek, inc.
O2 Sensor Ports2
Outlet GasketNone
Outlet HardwareNone
Outlet Type A2 bolt welded flange
Overall Length (IN)39.75
Substrate MaterialCeramic
TypeCarb compliant direct-fit

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006HummerH26.0LV8RightDirect Fit - California; 6GMXT06.0394; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-280-101; 6GMXT06.0394; 6GMXT06.0394
2005HummerH26.0LV8RightDirect Fit - California; 5GMXT06.0194; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-280-101; 5GMXT06.0194; 5GMXT06.0194
2004HummerH26.0LV8RightDirect Fit - California; 4GMXT06.0194; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-280-101; 4GMXT06.0194; 4GMXT06.0194
2003HummerH26.0LV8RightDirect Fit - California; 3GMXT06.0194; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-280-101; 3GMXT06.0194; 3GMXT06.0194

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