Catalytic Converter for Hyundai Santa Fe Sport (2013-2018) 2.4L Rear

Direct-Fit Rear Catalytic Converter for 2013-2018 Hyundai Santa Fe (DM)

What it Does: This direct-fit rear underbody catalytic converter for the 2013-2018 Hyundai Santa Fe Sport (DM) with the G4KJ 2.4L Theta II engine restores emissions conversion, eliminates substrate rattles, and clears catalyst efficiency fault codes.

The Stock Hyundai Santa Fe Underbody Catalyst Failure

Over high mileage, the factory rear underbody converter on the DM chassis equipped with the G4KJ 2.4L Theta II engine suffers from thermal shock, corrosion, and washcoat degradation. Repeated heat cycles and oil consumption fracture the fragile OEM ceramic brick inside the shell, causing substrate separation from the matting. Once the precious-metal washcoat loses oxygen storage capacity, the downstream O2 sensor detects low efficiency and triggers P0420 or P0430 catalyst codes.

Common Symptoms of a Failing OEM Catalytic Converter

• Check Engine Light / DTCs: Triggers P0420 or P0430 when washcoat degradation drops post-catalyst oxygen storage.
• Metallic Exhaust Rattle: Fractured ceramic honeycomb substrate loosens and vibrates inside the 8-inch housing.
• Excessive Backpressure: Dislodged substrate fragments restrict exhaust flow and cause EPA emissions test failures.

The Direct-Fit Stainless Catalytic Converter Solution

Engineered to bolt directly beneath the DM Santa Fe Sport, this unit uses a corrosion-resistant stainless steel body (8-inch length, 5-inch height) and precision-welded piping to prevent heat cracking. Inside, a high-flow ceramic honeycomb substrate coated with a precious-metal washcoat restores proper HC, CO, and NOx conversion without restricting exhaust flow. Built with a factory 2-bolt inlet flange, OEM hanger, slip-fit outlet, and one post-catalyst O2 sensor port, it installs cleanly without cutting or welding.

What's Included

• 1 x Rear Catalytic Converter
• 1 x 2-Bolt Flange Gasket
• 1 x U-Clamp
• 2 x Bolts with nuts and washers

Technical Specifications

Compatibility

• 2013-2018 Hyundai Santa Fe Sport Base (2.4L I4, Rear Position)
• 2013-2018 Hyundai Santa Fe Sport SE (2.4L I4, Rear Position)
• 2013-2018 Hyundai Santa Fe Sport Luxury (2.4L I4, Rear Position)
• 2013-2018 Hyundai Santa Fe Sport Premium (2.4L I4, Rear Position)

Frequently Asked Questions & Fitment Warnings

Does this fit the DM Santa Fe?

Yes. This is a direct fit for the rear underbody position on the 2013-2018 Hyundai Santa Fe Sport equipped with the G4KJ 2.4L Theta II engine. It does not fit 2.0L Turbo models, is not the front manifold converter, and is not CARB-approved for vehicles registered in California, New York, Colorado, or Maine.

Will this clear P0420/P0430 codes, and are O2 sensors included?

Yes, when caused by a worn catalyst. Replacing a degraded converter restores oxygen storage efficiency to clear P0420 and P0430 codes once exhaust leaks or misfires are resolved. Oxygen sensors are not included; transfer your existing post-catalyst sensor or install a new unit.

Are gaskets and mounting hardware included for installation?

Yes. The kit includes the 2-bolt inlet flange gasket, outlet U-clamp, and mounting bolts with nuts and washers. Allow the exhaust to cool, soak factory fasteners with penetrating oil, torque evenly, and check every joint for leaks.

The Hyundai Emissions Precision Standard

Precision stainless steel construction and OEM-spec precious-metal loading ensure CEL-free reliability and compliant exhaust flow on the DM Santa Fe Sport. This direct-fit rear converter restores factory backpressure and long-term emissions durability.