Davico 19421 Catalytic Converter - Center

Exact-Fit Catalytic Converter for Select GM Models

Davico Exact-Fit Catalytic Converter 19421 is built for direct replacement on select Chevrolet and Pontiac center exhaust applications. It is engineered from original equipment sample parts to match fit and function, with an emissions-reducing catalyst designed for current OBDII vehicle demands.

Key Features

• Exact-Fit Catalytic Converter line for OE-style replacement
• 3-bolt fixed flange inlet and 2-bolt fixed flange outlet
• 37 1/2 in. overall length
• Designed with 2 oxygen sensor locations
• Use with Davico Decarbonizing Induction Kit 1540ea
• Fits center exhaust applications on select Chevrolet HHR, Chevrolet Cobalt, and Pontiac G5 models

Product Details

Davico Part Number 19421 is a center-position catalytic converter for 2008-2011 Chevrolet HHR, 2008-2010 Chevrolet Cobalt, and 2008-2009 Pontiac G5. The Exact-Fit Catalytic Converter product line focuses on OE-style geometry and emissions control performance, using sample-based design to match the original part layout for proper installation and operation. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Replacement Reasons

• Failed catalytic converter efficiency codes
• Exhaust restriction or reduced exhaust flow
• Check engine light related to catalyst performance
• Damaged or corroded center exhaust converter assembly
• Incorrect fitment from a non-OE-style replacement

Installation Notes

• Compatible With 2008-2011 Chevrolet HHR, center.
• Compatible With 2008-2010 Chevrolet Cobalt, center.
• Compatible With 2008-2009 Pontiac G5, center.
• Not legal for use in California.
• Illegal for installation in New York on vehicles equipped with California emission systems.
• Verify flange style, oxygen sensor count, and overall length before installation.
• Use Davico Decarbonizing Induction Kit 1540ea as specified by the manufacturer.

Quality Assurance

Davico designs this converter from original equipment sample parts and uses a high-quality emissions-reducing catalyst to meet OBDII vehicle requirements. Part Number 19421 is built for direct-fit replacement on the listed Chevrolet and Pontiac applications.