Walker 14733 Catalytic Converter - Left
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Walker
 EPA

Walker 14733 Catalytic Converter - Left

Brand Walker 14733
Position Left
Clamps Included Yes
Universal Or Specific Fit Specific
Grade Type Premium
Tube Material Steel
Hangers Included Yes
Body Shape Oval
Inlet Type 3 bolt welded flange
Outlet Type Pipe connection
Body Height 4.000
Body Length 10.000
Body Width 5.500
Heat Shield Attached Yes
Inlet Quantity 1
Outlet Quantity 1
California Air Resources Board (CARB) Certified No
Substrate Material Ceramic
Converter Quantity 1
Inlet Gasket Included Yes
Inlet Mounting Hardware Included No
Outlet Mounting Hardware Included Yes
Overall Length 62.00
Sensor Port Count 2
New York Certified No
Oxygen Sensor Location Pre and post converter
Catalyst Type Standard
Clamp Qty 1
Inlet Gasket Yes
Inlet Gasket Qty 1
Inlet Hardware No
Mounting Hardware Included Gasket only
Product line EPA
Fits Chevrolet and GMC · 24 vehicles

Direct-fit design. Built for specific-fit exhaust replacement with a welded flange inlet and pipe outlet.

Ceramic substrate. Premium-grade catalyst construction with two oxygen sensor ports for pre- and post-converter placement.

EPA-compliant line. Walker Ultra Direct-Fit Catalytic Converters cover import and domestic OBDII applications.

Cross-references AP Exhaust 645817, Gates 24389 and 19418944 for the same application. See all 3.

$411.82Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $411.82
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Catalytic Converter options

Direct-Fit EPA Catalytic Converter

Walker EPA 14733 is a specific-fit catalytic converter built for OBDII-era vehicles and engineered to meet EPA standards. It uses a premium-grade ceramic substrate and a direct-fit layout for a cleaner replacement on the exhaust system.

Key Features

  • Specific-fit catalytic converter for direct replacement applications
  • Premium-grade construction with a ceramic substrate
  • Oval body shape with a welded 3-bolt flange inlet
  • Pipe connection outlet with attached heat shield
  • Includes inlet gasket, clamps, hangers, and outlet mounting hardware
  • Two oxygen sensor ports with pre- and post-converter locations

Product Details

Walker EPA 14733 is built as a direct-fit catalytic converter for 2008-2013 Chevrolet Express 2500, left, 2008-2013 Chevrolet Express 3500, left, 2008-2013 GMC Savana 2500, left, and 2008-2013 GMC Savana 3500, left. The oval body measures 10.000 inches long, 5.500 inches wide, and 4.000 inches high, with an overall length of 62.00 inches and a 2.94-inch outlet outside diameter. This part cross-references AP Exhaust 645817 for the same application.

Common Replacement Needs

  • Failed catalytic converter efficiency codes
  • Restricted exhaust flow from a worn substrate
  • Exhaust leaks at the inlet or outlet connection
  • Damaged heat shielding or mounting points
  • Oxygen sensor port issues during exhaust repair

Installation Notes

Verify the welded 3-bolt flange inlet, pipe outlet connection, and sensor port count before installation. This converter includes an inlet gasket and outlet mounting hardware; inlet mounting hardware is not included. Confirm EPA-specific fitment and left-side application before ordering.

Quality Assurance

Walker Ultra Direct-Fit Catalytic Converters are designed to comply with EPA standards and are offered for import and domestic OBDII vehicles from 1996 and newer.

Related reading

This part fits 24 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2013ChevroletExpress 25004.8LV8LeftEPA
2013ChevroletExpress 35004.8LV8LeftEPA
2013GMCSavana 25004.8LV8LeftEPA
2013GMCSavana 35004.8LV8LeftEPA
2012ChevroletExpress 25004.8LV8LeftEPA
2012ChevroletExpress 35004.8LV8LeftEPA
2012GMCSavana 25004.8LV8LeftEPA
2012GMCSavana 35004.8LV8LeftEPA
2011ChevroletExpress 25004.8LV8LeftEPA
2011ChevroletExpress 35004.8LV8LeftEPA
2011GMCSavana 25004.8LV8LeftEPA
2011GMCSavana 35004.8LV8LeftEPA
2010ChevroletExpress 25004.8LV8LeftEPA
2010ChevroletExpress 35004.8LV8LeftEPA
2010GMCSavana 25004.8LV8LeftEPA
2010GMCSavana 35004.8LV8LeftEPA
2009ChevroletExpress 25004.8LV8LeftEPA
2009ChevroletExpress 35004.8LV8LeftEPA
2009GMCSavana 25004.8LV8LeftEPA
2009GMCSavana 35004.8LV8LeftEPA
2008ChevroletExpress 25004.8LV8LeftEPA
2008ChevroletExpress 35004.8LV8LeftEPA
2008GMCSavana 25004.8LV8LeftEPA
2008GMCSavana 35004.8LV8LeftEPA
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 645817Gates — 2438919418944