Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
HUMMER Catalytic Converters
Showing In Stock Items. Show All 21 Items.
Catalytic Converter, Universal, 3-Way Style, Stainless Steel, Each
Part Number: MPE-51206
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
Catalytic Converter, Universal, 3-Way Style, Stainless Steel, Each
Part Number: MPE-51209
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
Catalytic Converter, Heavy Metal, Stainless Steel, Each
Part Number: MPE-99206HM
Not Yet Reviewed
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, 51.13 in. Overall Length, Right, Chevrolet, GMC, Hummer, 5.3L, Each
Part Number: APH-645180
Not Yet Reviewed
Estimated Ship Date: Feb 9, 2026 if ordered today
Estimated Ship Date: Feb 9, 2026 if ordered today
Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each
Part Number: WLK-83403
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 39.75 in. Overall Length, Right, Hummer, 6.0L, Each
Part Number: APH-645429
Not Yet Reviewed
Estimated Ship Date: Monday 1/26/2026
Estimated Ship Date: Monday 1/26/2026
Direct Fit;
Part Number: CTO-9166
Not Yet Reviewed
Estimated Ship Date: Feb 6, 2026 if ordered today
Estimated Ship Date: Feb 6, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters for 2003-2006 H2 - 645429
Not Yet Reviewed
Estimated Ship Date: Monday 1/26/2026
Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Heat Shield, Hummer, Each
Part Number: WLK-16562
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
AP Exhaust Direct-Fit Catalytic Converters for 2003-2006 H2 - 645429
Not Yet Reviewed
Estimated Ship Date: Monday 1/26/2026
Catalytic Converter, Direct Fit, Stainless Steel Case, Chevy, GMC, Hummer, 5.3L, Each
Part Number: CTO-9550
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
Catalytic Converter, Universal, 12.750 in. Length, 3.00 in. Inlet and Outlet, Each
Part Number: MPE-5451309
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
Catalytic Converter, Stainless Steel, 3.00 in. Inlet, 3.00 in. Outlet, 16.0 in. Length, Universal, Each
Part Number: MPE-445009
Not Yet Reviewed
Estimated Ship Date: Feb 12, 2026 if ordered today
Estimated Ship Date: Feb 12, 2026 if ordered today
CalCat CARB Catalytic Converter
Part Number: WLK-84701
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Converter-CalCat-Direct Fit
Part Number: WLK-83486
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Catalytic Converter, Stainless Steel Case, Cadillac, Chevy, Dodge, Ford, Hummer, Isuzu, Jeep, Mercury, Olds
Part Number: WLK-81723
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
