Description OEM Catalytic Converter – Chevy Silverado / GMC Sierra 4.3L 5.3L (2014-2019) OEM Catalytic Converter – Direct Fit – EPA Compliant (49-State) For Chevy Silverado / GMC Sierra 1500, Tahoe, Suburban, Yukon (2014–2019) – 4.3L V6 & 5.3L V8
✓ Brand New ✓ EPA Compliant (49-State) ✓ Stainless Steel Construction ✓ Direct Bolt-On Fit
Why Choose This Direct-Fit Catalytic Converter?
OEM Direct Replacement – Precision-engineered fit for 2014-2019 GM trucks/SUVs with 4.3L V6 and 5.3L V8 - High-Quality Stainless Steel – Durable, corrosion-resistant, and polished for long service life
- Ceramic Substrate Technology – Efficiently converts CO, HC, and NOx into CO₂, H₂O, and Nitrogen
- EPA Compliant (49-State Legal) – Meets strict federal emission standards
- Light-Weight & High-Flow Design – Optimized exhaust flow to maintain engine performance and fuel economy
- Weather & Temperature Resistant – Reliable in rain, snow, and extreme heat – performance doesn't degrade
- Stable & Reliable Performance – Consistent emission control with excellent durability
- Brand New – Never Installed – Factory-fresh unit with zero wear or usage
- Bolt-On Installation – Direct fitment requires no cutting or welding; uses factory mounting points
Product Description
Restore your Chevy or GMC truck/SUV's emissions system to peak performance with this OEM-grade catalytic converter. Designed specifically for the 4.3L V6 and 5.3L V8 engines found in the 2014-2018 Silverado/Sierra 1500 and 2015-2019 Tahoe/Suburban/Yukon models, this direct-fit unit replaces your worn or failed converter with a high-efficiency stainless steel assembly.
The ceramic honeycomb substrate is coated with precious metals (platinum, rhodium, palladium) to facilitate the chemical reaction that converts harmful exhaust gases – carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) – into harmless carbon dioxide, water vapor, and nitrogen. This ensures your vehicle meets Federal EPA emission standards while maintaining optimal fuel economy and power output.
Crafted from heavy-duty stainless steel with a polished finish, this converter resists corrosion and withstands the high temperatures of modern V6/V8 exhaust systems. The high-flow design minimizes backpressure, allowing your engine to breathe freely and perform at its best. Installation is straightforward with factory-style flanges and hangers – no special tools or modifications required.
Note: Please verify your vehicle's model, year, and engine size against the fitment list below. This converter is designed for 49-state use only. For registered vehicles in California, New York, Colorado, or Maine, please do not purchase – check our CARB-compliant options instead.
Precise Vehicle Fitment
Compatible with the following vehicles equipped with 4.3L V6 or 5.3L V8 gasoline engines:
Chevrolet Models
Silverado 1500 – 2014, 2015, 2016, 2017, 2018 (V8 5.3L & V6 4.3L) - Tahoe – 2015, 2016, 2017, 2018, 2019 (V8 5.3L)
- Suburban – 2015, 2016, 2017, 2018, 2019 (V8 5.3L)
GMC Models
Sierra 1500 – 2014, 2015, 2016, 2017, 2018 (V8 5.3L & V6 4.3L) - Yukon – 2015, 2016, 2017, 2018, 2019 (V8 5.3L)
- Yukon XL – 2015, 2016, 2017, 2018, 2019 (V8 5.3L)
Technical Specifications Specification Detail OEM Part Numbers 20757674, 23486656 Product Type Catalytic Converter Assembly Fitment Type Direct Replacement (Bolt-On) Finish Polished Condition Brand New Tube Material High-Quality Stainless Steel Substrate Material Ceramic (Honeycomb) Emissions Standard EPA Compliant (49-State Legal) Compatibility 2014-2018 Silverado/Sierra 4.3L/5.3L · 2015-2019 Tahoe/Suburban/Yukon 5.3L Package Includes
1x Catalytic Converter Assembly (as shown in the picture) - All necessary gaskets and hardware for installation
Frequently Asked Questions
OEM Catalytic Converter – For Chevy Silverado / GMC Sierra 1500, Tahoe, Suburban, Yukon (2014–2019)
Please verify your vehicle's model, year and engine size before purchase. Professional installation recommended. Payment Shipping Returns Contact Us 1.We suggest that ask professional to install products and contact us when installing issue happened. We are not responsible for installing or uninstalling.
2.If there is any problem with the product quality, please contact us first before you opened the return, we will try our best to solve all problems for you.
3.The returning item should be in it's original packaging and assure all parts included .
Attention:Any problems please contact us at any time before leaving a negative/neutral response and opening the return request. Many thanks to you." 1.Please make sure your shipping address is correct for your receipt.
2.After you paid,we will ship it asap." 1. Accept Paypal ,Card and Bank.
2. All major credit cards are accepted through our secure payment system.
3. We ship to your payment address. Please make sure your penment address is correct before paying." Please contact us in time if any inquiries under any circumstances. We greatly appreciate your positive response and will do the same for you. We care about our valued customers and will always do our best to help you, should you have any problems. Working time: GMT 8/9: 00-18: 30 normally we will reply you within one business day.
