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Shopping for 2004-Chevrolet-Express 2500
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2004 Chevrolet Express 2500 Catalytic Converter

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Catalytic Converter - Walker 83404Catalytic Converter - Walker 83404
Walker
Walker 83404 Catalytic Converter, Exhaust
$323.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
83404
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Catalytic Converter - Walker 83403
Walker
Walker 83403 Catalytic Converter, Exhaust
$324.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
83403
Show less
Catalytic Converter - Walker 83508
Walker
Walker 83508 Catalytic Converter, Exhaust
$417.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
83508
Show less
Catalytic Converter - Walker 83509
Walker
Walker 83509 Catalytic Converter, Exhaust
$421.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
83509
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Catalytic Converter - Walker 81924
Walker
Walker 81924 Catalytic Converter, Exhaust
$912.99
Quantity Less than 3
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
81924
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Catalytic Converter - Walker 81713
Walker
Walker 81713 Catalytic Converter, Exhaust
$899.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
81713
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Catalytic Converter - Walker 81724
Walker
Walker 81724 Catalytic Converter, Exhaust
$889.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
81724
Show less
Catalytic Converter - Walker 81918
Walker
Walker 81918 Catalytic Converter, Exhaust
$1,200.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
81918
Show less
Catalytic Converter - Walker 81923
Walker
Walker 81923 Catalytic Converter, Exhaust
$1,028.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
81923
Show less
Catalytic Converter - Left Driver Side - Walker 55534
Walker
Walker 55534 Catalytic Converter, Left Driver Side
$409.99
Quantity Less than 3
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionLeft
Part interchange
55534, 50399, 645814, 645862, 9995, 079-5194, 49601, 9992, 
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Catalytic Converter - Left Driver Side - Walker 55577
Walker
Walker 55577 Catalytic Converter, Left Driver Side
$595.99
Quantity Less than 2
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionLeft
Part interchange
55577, 50399, 645814, 645862, 49601, 9992, 15751270, 93407, 
...View more
Show less
Catalytic Converter - Right Passenger Side - Walker 55533
Walker
Walker 55533 Catalytic Converter, Right Passenger Side
$364.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionRight
Part interchange
55533, 9994, 49603, 9208, 079-5192, 93408, 15853439, 645815, 
...View more
Show less
Catalytic Converter - Right Passenger Side - Walker 56220
Walker
Walker 56220 Catalytic Converter, Right Passenger Side
$636.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionRight
Part interchange
56220, 9994, 9208, 93408, 645815, 50421, 645816, 50425, 
...View more
Show less
Catalytic Converter - Walker 40641
Walker
Walker 40641 Catalytic Converter, Exhaust
$826.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
40641, 9991, 50369, 15128301, 645813, 24081, 640585, 912083, 
...View more
Show less
Catalytic Converter - Walker 15038
Walker
Walker 15038 Catalytic Converter, Exhaust
$106.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15038, 94106, 93166, 602206, SC216, 602296, 6906, 91006, 
...View more
Show less
Catalytic Converter - Walker 15034
Walker
Walker 15034 Catalytic Converter, Exhaust
$167.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15034, SC207, 602507, 6007, 602007, 70430, SC217, 6507
Show less
Catalytic Converter - Walker 15104
Walker
Walker 15104 Catalytic Converter, Exhaust
$269.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2004 Chevrolet Express 2500
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15104, 641211, 92624, 82624
Show less
Page 3 of 3

A catalytic converter, often referred to as a "cat," is an essential component of your engine's exhaust system. This device uses catalysts to transform harmful chemicals in the exhaust gases.

What are the signs of a bad catalytic converter?

  • Check engine light
    The dashboard warning light may illuminate, indicating potential issues.
  • Decreased engine performance
    Noticeable loss of power, acceleration, or overall engine performance.
  • Poor fuel economy
    A significant drop in fuel efficiency can occur as the converter fails.
  • Excessive exhaust emissions
    Increased emissions, including a strong sulfur or rotten egg smell.
  • Rattling noises
    Unusual rattling sounds from the exhaust system, indicating internal damage.
  • Overheating
    The engine may run hotter than normal due to restricted exhaust flow.
  • Failed emissions test
    Inability to pass emissions testing due to high pollution levels.

Shop for aftermarket catalytic converters on A-Premium.com

Premium.com offers a wide range of aftermarket catalytic converters for your vehicle. Refine your search by selecting from various dimensions, inlet types, and tube materials. A-Premium team is dedicated to helping you find a compatible catalytic converter for your car. Every item in our catalog is carefully selected by our team of experts, ensuring they undergo rigorous quality checks to endure the demanding conditions of your exhaust system. Shop now to find the best deal on your new catalytic converter!