MagnaFlow Direct Fit Catalytic Conv 13-18 Dodge Durango 3.6L V6 / 13-18 Jeep Grand Cherokee 3.6L V6
MagnaFlow Direct Fit Catalytic Conv 13-18 Dodge Durango 3.6L V6 / 13-18 Jeep Grand Cherokee 3.6L V6
Description
OEM Grade
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-251. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2013-2020 Jeep Grand Cherokee and 2013-2020 Dodge Durango, this direct-fit catalytic converter also interchanges with OE parts 6811 0125AE and 6811 0125AB, among others. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Additional Information
Magnaflow OEM Grade Direct-Fit Catalytic Converter
| Additional Application Notes | |
|---|---|
| • OEM Grade; Stainless Steel; Overall L-39.25 in.;Not Legal For Sale Or Installation In CA/CO/NY | |
| • with Dual Exhaust OEM Grade; Stainless Steel; Overall L-39.25 in.;Not Legal For Sale Or Installation In CA/CO/NY | |
| • with Dual Exhaust OEM Grade Series; 2.5 in. Tubing; 2.5in. Inlet/Outlet; Overall L-36.125in.; O2 Sensor Location Pre Converter/Midbed; Not Air Tube Kit Adaptable;Not Legal For Sale Or Use On Vehicles Registered In CA | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:06:21
Features
- Durable 308 stainless steel MIG welds
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Expertly Crafted To Replicate Oem-Like Flow Dynamics/Maintaining Factory Performance And Fuel Efficiency
- High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
- Providing Assurance Of Genuine Compliance While Delivering Quality That Will Last
- Simplifies Installation With Essential Gaskets And Hardware Being Included In The Box
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Air Tube Adaptable: | No |
| Air Tube Count: | 0 |
| Body Material: | Stainless Steel |
| Body Type: | Spun |
| CARB Executive Order Number: | Not Applicable |
| Catalytic Converter Air Tube Adapter: | No |
| Clamp Included: | No |
| Clamps Included: | No |
| Converter Quantity: | 1 |
| Core Substrate Material: | Ceramic |
| Description: | OEM Grade Direct-Fit Catalytic Converter |
| Finish: | Stainless Steel |
| Grade Type: | Regular |
| Hangers Included: | No |
| Heat Shield Attached: | No |
| Heat Shield Material: | None |
| Inlet Attachment: | Bolt-On |
| Inlet Gasket Included: | No |
| Inlet Mounting Hardware Included: | No |
| Inlet Type: | Bolt-On |
| Material: | Stainless Steel |
| Mounting Hardware Included: | No |
| Outlet Gasket Included: | No |
| Outlet Mounting Hardware Included: | No |
| Outlet Type: | Clamp-On |
| Overall Length: | 39.25 |
| Oxygen Sensor Location: | Pre Converter and Midbed |
| Part Number: | mag21-251 |
| Pipe Material: | Stainless Steel |
| Sensor Port Count: | 2 |
| Series: | OEM Grade |
| Substrate Material: | Ceramic |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance |
| StreetFX SKU | mag21-251 |
| SFX Item ID | 4286711 |
| Accounting SKU | mag-21-251 |
| Manufacturer SKU | 21-251 |
| Manufacturer UPC | 888563105734 |
| Alternative References | 21-251, MFL21-251, MPE-21-251 |
CONVERTER, Conv DF 2013-2015 Durango V6 3.6 OEM Underbody
MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.
| Product Attributes | |
|---|---|
| Brand | MagnaFlow |
| Manufacturer's Part Number | 21-251 |
| Part Type | Catalytic Converters |
| Product Line | MagnaFlow Direct-Fit Catalytic Converters |
| UPC | 888563105734 |
| Inlet Diameter (in.) | 2.50 in. |
| Outlet Diameter (in.) | 2.50 in. |
| Converter Case Material | Stainless steel |
| Converter Substrate Material | Ceramic honeycomb |
| Converter Style | 3-way |
| Remanufactured | No |
| AIR Tube | No |
| Heat Shield | No |
| Quantity | Sold individually. |
Compatibility
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