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  3. Exhaust
  4. Catalytic Converter
  5. Catalytic Converter
  6. Walker 55557

Walker 55557 Catalytic Converter

Walker 55557 Catalytic Converter
Walker 55557 Catalytic Converter Image 1
Walker 55557 Catalytic Converter

Walker
Brand:Walker
Part Number: 55557
UPC: 086387555579
Weight: 19 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Walker 55557 Catalytic Converter for your vehicle. Buy now and secure your purchase online!

Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Features and Benefits:

  • BUY WITH CONFIDENCE -- Backed by Walker's 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details.
  • DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
  • EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability

Specifications:

Air Tube Count:
No
Air Tube:
No
Body Height:
4.25 in.
Body Length:
10 in.
Body Material:
Stainless Steel
Body Shape:
Small Oval
Body Width:
6 in.
California Air Resources Board (CARB) Certified:
No
Converter Quantity:
1
Grade Type:
Regular
Inlet 1 Type:
3 Bolt Welded Flange
Inlet Quantity:
1
Inlet Type:
3 Bolt Welded Flange
Mounting Hardware Included:
No
Outlet 1 Outside Diameter:
3 in.
Outlet 1 Type:
Pipe Connection
Outlet Outside Diameter:
3 in.
Outlet Quantity:
1
Outlet Type:
Pipe Connection
Overall Length:
50 in.
Oxygen sensor location:
Pre And Post Catalyst
Substrate Material:
Ceramic
Universal Or Specific Fit:
Specific
AP Exhaust #:
645455
AP Exhaust #:
645782
AP Exhaust #:
645818
Catco #:
9223
Eastern #:
50423
MagnaFlow Exhaust Products #:
24457
MagnaFlow Exhaust Products #:
49643
MagnaFlow Exhaust Products #:
49646
MagnaFlow Exhaust Products #:
93480
Walker Exhaust #:
54719
Country of Origin:
US

Select a vehicle to narrow Walker 55557 Catalytic Converter fitment info!

Last Updated: 12/24/2023

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2004

 

2004

 
Chevrolet Silverado 2500

6.0L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

Chevrolet Silverado 2500



6.0L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2005

 

2004

 

2003

 

2005

 

2004

 

2003

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2007

 

2007

 
Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
Wheel Base 133.0 In.
 

Chevrolet Silverado 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
Wheel Base 133.0 In.

1 Per Vehicle

2004

 

2004

 
GMC Sierra 2500

6.0L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

GMC Sierra 2500



6.0L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2005

 

2004

 

2003

 

2005

 

2004

 

2003

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Left (Driver) EPA
with Federal Emissions System
except Low Emission Vehicle (LEV)
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2006

 

2005

 

2004

 

2003

 
GMC Sierra 3500

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

GMC Sierra 3500



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
GMC Sierra 3500

6.0L V8 CNG OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
 

GMC Sierra 3500



6.0L V8 CNG OHV

Left (Driver) EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type

1 Per Vehicle

2007

 

2007

 
GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
8.1L V8 Gas OHV
1
 
Left (Driver)
 
EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
Wheel Base 133.0 In.
 

GMC Sierra 3500 Classic



6.0L V8 Gas OHV,
8.1L V8 Gas OHV

Left (Driver) EPA
with Federal Emissions System
Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.
Exhaust Gasket is Recommended
Ultra Direct Fit Type
Wheel Base 133.0 In.

1 Per Vehicle