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GMC K3500 Catalytic Converters
This page brings together catalytic converters for the GMC K3500 spanning model years 1979–2000, including direct-fit, universal, manifold, and OE replacement styles. Pick your GMC K3500's year above to narrow the list to catalytic converters with confirmed fitment. Every part shown is checked against our vehicle data.
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Magnaflow 99006HM Universal Catalytic Converter 2.50 Inch Inlet/Outlet
Part: 99006HM
Vehicle Specific
$222.00
3 left at this price
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MagnaFlow 339109 California Universal Catalytic Converter 3in. CARB Compliant
Part: 339109
Vehicle Specific
$480.00
In Stock (8)
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Magnaflow 4451304 Universal Catalytic Converter 2.00 Inch Inlet/Outlet
Part: 4451304
Vehicle Specific
$795.00
In Stock (5)
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Magnaflow 51309 Universal Catalytic Converter 3.00 Inch Inlet/Outlet
Part: 51309
Vehicle Specific
$202.00
In Stock (10+)
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Magnaflow 334006 Universal Catalytic Converter 2.50 Inch Inlet/Outlet
Part: 334006
Vehicle Specific
$202.00
In Stock (10+)
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In Stock (10+)
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Magnaflow 95509 Universal Catalytic Converter 3.00 Inch Inlet/Outlet
Part: 95509
Universal Fit
$261.00
In Stock (10+)
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Magnaflow 333009 Universal Catalytic Converter 3.00 Inch Inlet/Outlet
Part: 333009
Vehicle Specific
$338.00
In Stock (10+)
Magnaflow 54955 Universal Catalytic Converter 2.25 Inch Inlet/Outlet
Part: 54955
Universal Fit
$99.00
In Stock (10+)
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In Stock (10+)
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Magnaflow 4451337 Universal Catalytic Converter CARB Compliant 2.50 Inch Outlet
Part: 4451337
Vehicle Specific
$874.00
1 left at this price
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Magnaflow 3322306 Universal Catalytic Converter 2.5 Inch Inlet/Outlet
Part: 3322306
Vehicle Specific
$560.00
3 left at this price
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MagnaFlow 5571315 California Grade CARB Compliant Direct-Fit Catalytic Converter
Part: 5571315
Vehicle Specific
$1,636.00
Ships from manufacturer
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Ships from manufacturer
What's here for your GMC K3500
- Direct-fit catalytic converters designed to match factory mounting points
- Universal catalytic converters for flexible installation applications
- Manifold catalytic converters positioned close to the engine
- OE replacement catalytic converters built to original equipment specifications
The widest selection here comes from AP Exhaust, Magnaflow, Catco, and Walker Exhaust, giving GMC K3500 owners a broad range of fitment styles and construction types to choose from. Other categories GMC K3500 owners shop for: GMC K3500 Exhaust and Tail Pipes, GMC K3500 Brake Hardware and GMC K3500 Valve Train Parts, or browse all GMC K3500 parts and accessories.