Details
BrandMagnaflow
SKUMAG51878
GTIN / UPC841380068552
Manufacturer Part Number51878
Product Information
MagnaFlow OEM-Grade Federal/EPA-compliant direct-fit catalytic converter (51878) for the 2002-2006 Cadillac Escalade and 2001-2006 GMC Yukon 6.0L (driver/left side). Spun-body 409 stainless construction with mandrel-bent tubing and a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding, and includes gaskets and hardware. Federal/EPA compliant (not for sale in California). For OBDII Federally registered vehicles.
Specifications
| Type | Direct-fit catalytic converter |
| Grade | OEM Grade |
| Material | 409 stainless steel (spun body) |
| Position | Driver side (left) |
| Hardware | Gaskets & hardware included |
| Finish | Stainless |
| Inlet Type | Flange |
| Tube Material | Stainless Steel |
| Clamps Included | Yes |
| Hangers Included | Yes |
| Legality | Not legal for sale or installation in California, Colorado or New York. |
| Part Number | 51878 |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Cadillac | Escalade | Base |
| 2003-2006 | Cadillac | Escalade ESV | Base |
| 2002-2006 | Cadillac | Escalade EXT | Base |
| 2004-2005 | Chevrolet | Silverado 1500 | LS |
| 2004-2006 | Chevrolet | Silverado 1500 | LT |
| 2003-2006 | Chevrolet | Silverado 1500 | SS |
| 2005 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2007 | Chevrolet | Silverado 1500 Classic | LT |
| 2007 | Chevrolet | Silverado 1500 Classic | SS |
| 2006 | Chevrolet | Suburban 1500 | LTZ |
| 2004 | GMC | Sierra 1500 | Base |
| 2001 | GMC | Sierra 1500 | C3 |
| 2002-2006 | GMC | Sierra 1500 | Denali |
| 2004-2006 | GMC | Sierra 1500 | SLE |
| 2004-2006 | GMC | Sierra 1500 | SLT |
| 2004 | GMC | Sierra 1500 | WT |
| 2007 | GMC | Sierra 1500 Classic | Denali |
| 2007 | GMC | Sierra 1500 Classic | SLE |
| 2007 | GMC | Sierra 1500 Classic | SLT |
| 2001-2006 | GMC | Yukon | Denali |
| 2001-2006 | GMC | Yukon XL 1500 | Denali |
Which vehicles does this fit?
- It fits the Cadillac Escalade 2002-2006, Cadillac Escalade ESV 2003-2006, Cadillac Escalade EXT 2002-2006, Chevrolet Silverado 1500 2003-2006, Chevrolet Silverado 1500 Classic 2007, Chevrolet Suburban 1500 2006 and 4 more models. The full year, make, model and submodel list is in the fitment table on this page. This part is for the driver side (left) position.
Is it legal in my state?
- Not legal for sale or installation in California, Colorado or New York.
What is it made of?
- 409 stainless steel (spun body).
Shipping
- In stock orders typically ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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