Catalytic Converter for Buick Encore (2013-2021) 1.4L

Direct-Fit Rear Catalytic Converter for 2013-2021 Buick Encore

Direct-fit replacement: Restores factory exhaust flow, eliminates P0420 catalytic efficiency codes, and ensures complete emissions compliance on 1.4L Turbo models.

The Stock Encore Catalytic Substrate Degradation

The factory exhaust converter on the Gamma II platform frequently suffers from internal ceramic washcoat degradation and thermal shock from extended turbo exhaust gas temperatures (EGT). In the 1.4L Ecotec, oil vapor carryover and rich-burn conditions can coat the OEM core, resulting in increased backpressure, sluggish turbo spool, lost fuel economy, and persistent catalyst efficiency trouble codes.

The Engineering Solution

Manufactured with a durable stainless steel outer housing and a high-efficiency ceramic honeycomb monolith, this direct-fit catalytic assembly restores factory backpressure levels and clean tailpipe emissions. Precision robotic welds and exact OE-spec bolt-on flanges allow seamless mating to the stock downpipe and mid-pipe without cutting or custom fabrication. Includes required hardware, clamp, and flange gasket for a direct bolt-on install.

Technical Specifications

Compatibility

• 2013 Buick Encore 1.4L L4 Turbo
• 2014 Buick Encore 1.4L L4 Turbo
• 2015 Buick Encore 1.4L L4 Turbo
• 2016 Buick Encore 1.4L L4 Turbo
• 2017 Buick Encore 1.4L L4 Turbo
• 2018 Buick Encore 1.4L L4 Turbo
• 2019 Buick Encore 1.4L L4 Turbo
• 2020 Buick Encore 1.4L L4 Turbo
• 2021 Buick Encore 1.4L L4 Turbo

The Buick Reliability Standard

Engineered to handle severe daily thermal cycling, this replacement converter ensures steady exhaust gas velocity and quiet, drone-free highway operation without throwing downstream sensor faults.