Eastern Convertors 30637 Catalytic Converter - Rear

Direct-Fit Catalytic Converter for Focus

Eastern Convertors 30637 is a direct-fit catalytic converter built for the rear position on select Ford Focus models. It is engineered to match OE dimensions and fitment for 2012-2018 Ford Focus, rear, with PZEV emissions.

The Eastern Convertors DIRECT FIT line focuses on application-specific replacement parts for straightforward installation and consistent fitment. Part number 30637 is built using automated production methods and OE-style dimensional control to support accurate exhaust alignment on the Ford Focus platform.

Key Features

• Direct-fit catalytic converter for the rear exhaust position
• Fits 2012-2018 Ford Focus, rear, undercar
• For vehicles with PZEV emissions
• Standard catalyst type
• 2-bolt welded inlet design
• Outlet size: 1.985"-1.995" OD
• Overall length: 17.75 in.
• Includes 1 clamp and 1 inlet gasket
• No O2 sensor ports

Detailed Description

Eastern Convertors 30637 is a rear catalytic converter for the Ford Focus, designed for 2012-2018 models with PZEV emissions. This direct-fit unit follows OE dimensions for proper exhaust routing and alignment, making it a practical replacement for a worn or failed converter on the Ford Focus exhaust system. The Eastern Convertors DIRECT FIT product line is built around application-specific fitment, and this part number 30637 reflects that approach with a 2-bolt welded inlet, standard catalyst construction, and an outlet sized at 1.985"-1.995" OD.

Manufacturing methods include automated workstations, spinner welding, and high-speed production processes to maintain dimensional consistency. The converter also uses proprietary NANO substrate chemistry to support efficient catalyst loading while keeping production costs controlled. This part cross-references Walker (e.g., 16337, 16637) for the same application.

Common Replacement Reasons

• Failed emissions test on a 2012-2018 Ford Focus, rear
• Check engine light related to catalyst efficiency
• Exhaust restriction or reduced exhaust flow
• Physical damage, corrosion, or internal substrate breakdown
• Need for a direct-fit replacement on a PZEV-equipped Focus

Installation Notes

Fits 2012-2018 Ford Focus, rear, undercar, with PZEV emissions. Verify the vehicle’s emissions configuration before ordering, since this part is not for sale or use in California, Colorado, Maine, or New York for vehicles with CA emissions. Confirm the 2-bolt welded inlet and 1.985"-1.995" OD outlet match the existing exhaust connection points before installation.

Quality Assurance

Eastern Convertors uses OE-dimension manufacturing controls and automated production equipment to support consistent fitment and repeatable build quality. The DIRECT FIT line is produced with process controls intended to maintain dimensional accuracy across applications.