AP Exhaust
6GMXT06.0394

AP Exhaust 912166 Catalytic Converter - Right

Brand AP Exhaust 912166
Position Right
Body Material Stainless steel
Executive Order D-280-101
Inlet Gasket 1
Inlet Hardware None
Inlet Type A 3 bolt welded flange
Issued Company Airtek, inc.
O2 Sensor Ports 2
Outlet Gasket None
Outlet Hardware None
Outlet Type A 2 bolt welded flange
Overall Length (IN) 39.75
Substrate Material Ceramic
Type Carb compliant direct-fit
Product line 6GMXT06.0394
Fits Hummer · 4 vehicles

CARB compliant direct-fit. Built to exact OE dimensions for straightforward installation.

Stainless steel body. Resists corrosion for long-lasting exhaust service.

Ceramic substrate. Proprietary chemistry promotes efficient converter performance.

$682.72Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $682.72
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Direct-Fit Catalytic Converter for Hummer H2

AP Exhaust 912166 is a CARB-compliant direct-fit catalytic converter built for the right-side application on select Hummer H2 models. It uses a stainless steel body, ceramic substrate material, and OE-dimension fitment to support proper exhaust flow and emissions control on California applications.

The 5GMXT06.0194 product line focuses on exact-fit replacement converters with efficient substrate loading and modern manufacturing controls. For buyers searching for a 2003-2006 Hummer H2 right catalytic converter, AP Exhaust 912166 provides a direct replacement built to match factory dimensions and emissions requirements.

  • CARB compliant direct-fit catalytic converter
  • Stainless steel body construction
  • Ceramic substrate material
  • 3-bolt welded flange inlet
  • 2-bolt welded flange outlet
  • 2 O2 sensor ports
  • Overall length: 39.75 in.
  • Executive Order D-280-101

Fitment Details

  • Fits 2003 Hummer H2, right side, direct fit California application.
  • Fits 2004 Hummer H2, right side, direct fit California application.
  • Fits 2005 Hummer H2, right side, direct fit California application.
  • Fits 2006 Hummer H2, right side, direct fit California application.

What This Converter Helps Address

  • Failed emissions testing on California-equipped Hummer H2 models
  • Check engine light concerns related to catalyst efficiency
  • Restricted exhaust flow from a worn or damaged converter
  • Fitment issues caused by a non-direct replacement part
  • Exhaust leaks at the inlet or outlet flange connection points

Installation Notes

Verify the vehicle is a right-side California application before ordering. This converter uses a 3-bolt welded flange inlet and a 2-bolt welded flange outlet, with two oxygen sensor ports for the specified fitment. Confirm the OE-style mounting points and emissions label requirements against the vehicle before installation.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment. The 5GMXT06.0194 line is engineered for consistent manufacturing control and emissions compliance, and this unit carries Executive Order D-280-101 for the listed applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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