2003 Infiniti QX4 Catalytic Converter
Navigate our online catalogue to find original replacement Catalytic Converters specifically designed to fit a 2003 Infiniti QX4.
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: Canada;
Region: Canada;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: United States;
Region: United States;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Front Left (Driver Side)
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: Canada;
Region: Canada;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Front Left (Driver Side)
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: United States;
Region: United States;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: Canada;
Region: Canada;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: United States;
Region: United States;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Front Right (Passenger Side)
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: Canada;
Region: Canada;
Catalytic Converter
$297.57
In Stock
Condition: New
Ships: in 1-2 Business Days
Pick-Up in 1-2 Business Days
Pick-Up in 1-2 Business Days
Front Right (Passenger Side)
Required Per Vehicle: 1
Made in Canada
Vehicle fitment:
Region: United States;
Region: United States;
Catalytic Converter
$754.28
Limited Stock
Condition: New
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Left (Driver Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
with Federal/California Emissions System Exhaust Gasket is Recommended Additional Part(s) Needed To Complete Installation: 31397 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type
with Federal/California Emissions System Exhaust Gasket is Recommended Additional Part(s) Needed To Complete Installation: 31397 Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type
Catalytic Converter
$776.64
$776.21
In Stock
Condition: New
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Right (Passenger Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
with Federal/California Emissions System Exhaust Gasket is Recommended Additional Part(s) Needed To Complete Installation: 31397 Includes Front Gasket Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type
with Federal/California Emissions System Exhaust Gasket is Recommended Additional Part(s) Needed To Complete Installation: 31397 Includes Front Gasket Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type
Catalytic Converter
$658.95
Out of Stock
Condition: New
Front Left (Driver Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
CARB Compliant: No
CARB Compliant: No
Catalytic Converter
$621.82
Out of Stock
Condition: New
Front Right (Passenger Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
CARB Compliant: No
CARB Compliant: No
Catalytic Converter
$1,006.61
$546.50
Out of Stock
Condition: New
Front Left (Driver Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
CARB Executive Order D-182-52 Engine Family Number (EFN) 3NSXT03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31397 Direct Fit Type
CARB Executive Order D-182-52 Engine Family Number (EFN) 3NSXT03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31397 Direct Fit Type
Catalytic Converter
$987.38
$536.05
Out of Stock
Condition: New
Front Right (Passenger Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
CARB Executive Order D-182-52 Engine Family Number (EFN) 3NSXT03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31397 Includes Front Gasket Direct Fit Type
CARB Executive Order D-182-52 Engine Family Number (EFN) 3NSXT03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31397 Includes Front Gasket Direct Fit Type
Catalytic Converter
$533.28
Out of Stock
Condition: New
Rear Left (Driver Side)
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Engine Base: 3.5L 3498cc V6 (3.76x3.21; 95.5x81.4);
Vehicle Fitment Notes:
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Direct Fit Type