Walker 15684 Catalytic Converter

Walker EPA Standard Direct-Fit Catalytic Converter

Walker EPA Standard direct-fit catalytic converter 15684 is built for pre-OBD vehicles and is engineered to reduce tailpipe emissions while meeting EPA emissions requirements. It uses a direct-fit layout with a 2.5-inch inlet and 2.5-inch outlet for straightforward exhaust replacement on listed Chevrolet and GMC applications.

Key Features

• Direct-fit catalytic converter for specific vehicle applications
• EPA-compliant design for pre-OBD vehicles
• Stainless steel body with a large oval shape
• Ceramic substrate material
• 2.5-inch pipe connection inlet and outlet
• Overall length: 26.25 inches
• Body dimensions: 13.25 inches long, 7.5 inches wide, 4.5 inches high
• No oxygen sensor port location
• Exhaust gasket is recommended during installation

Product Details

Walker EPA Standard line focuses on direct-fit replacement converters for 1995-and-older vehicles that need EPA emissions compliance. Part number 15684 is a regular-grade catalytic converter with a stainless steel shell and ceramic substrate, built for specific fitment on select Chevrolet and GMC trucks and vans from 1988 through 1993. This part cross-references Eastern Catalytic 50298 for the same application.

Fits 1988-1993 Chevrolet C2500, 1988-1993 Chevrolet K2500, 1988-1993 GMC C2500, and 1988-1993 GMC K2500; also fits 1988-1992 Chevrolet C1500, 1988-1992 Chevrolet K1500, 1988-1992 GMC C1500, 1988-1992 GMC K1500, 1992 Chevrolet Astro, and 1992 GMC Safari. Additional coverage includes 1993 Chevrolet C1500, 1993 Chevrolet K1500, 1993 GMC C1500, and 1993 GMC K1500 with listed emission and Y-pipe notes.

Common Repair Uses

• Replacing a restricted or failed catalytic converter
• Restoring exhaust flow after emissions-related trouble codes or inspection failure
• Addressing rattling or damaged converter substrate
• Replacing a rusted or leaking exhaust converter section
• Returning a high-mileage Chevrolet C1500, GMC K1500, or similar application to proper exhaust function

Installation Notes

Verify the vehicle’s year, make, model, emission package, and exhaust configuration before ordering. This converter is a specific-fit unit with pipe connections and no air tube provisions. For listed applications, an exhaust gasket is recommended, and some 1993 Chevrolet C1500, Chevrolet K1500, GMC C1500, and GMC K1500 models are excluded when the converter is located in the Y-pipe. This part is not CARB certified and is not legal for sale or use in California and other CARB-compliant states.

Quality Assurance

Walker manufactures this EPA Standard catalytic converter to meet emissions requirements for the covered federal-emissions applications. The stainless steel construction and ceramic substrate are selected for standard replacement use on pre-OBD vehicles requiring direct-fit exhaust service.