HomeExhaust > Exhaust and Tail PipesDorman 679-021 Exhaust Crossover Pipe
Part #: 679-021

Dorman 679-021 Exhaust Crossover Pipe

⚙️ 7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mercury, Escape and Mariner
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Durable Stainless Steel Exhaust Crossover Pipe for Ford Escape and Mercury Mariner

The Dorman 679-021 exhaust crossover pipe is engineered to provide reliable exhaust flow management for Ford Escape and Mercury Mariner models. Constructed from stainless steel, this single pipe component offers corrosion resistance and a natural finish designed to maintain performance over time.

  • Made from corrosion-resistant stainless steel material
  • 3.25 inch inlet and outlet outside diameter for precise fit
  • Includes flanged inlet and outlet connections for secure sealing
  • Comes with two flange gaskets and one donut gasket for proper sealing
  • Length of 34 inches with overall width of 15 inches and height of 5 inches
  • Designed as a single pipe with three flanges for optimal exhaust crossover
  • No welding required for installation

Product Details and Specifications

The Dorman 679-021 exhaust crossover pipe features a 3 inch inside diameter at both inlet and outlet, ensuring compatibility with standard exhaust piping on the Ford Escape and Mercury Mariner. Its natural stainless steel finish provides durability against rust and heat exposure. The pipe includes flanged connections on both ends and an additional flange, totaling three flanges, which help secure the pipe firmly within the exhaust system. This crossover pipe does not require welding, simplifying installation and reducing labor time. The package contains one crossover pipe, two flange gaskets, and one donut gasket to ensure a proper seal and prevent exhaust leaks.

Compatible Vehicles and Applications

  • Designed specifically for Ford Escape exhaust systems
  • Compatible with Mercury Mariner exhaust configurations
  • Used to connect exhaust pipes across the crossover section
  • Ideal for replacing worn or damaged crossover pipes in these models
  • Helps maintain proper exhaust flow and system integrity

Installation Notes and Tips

Installation of the Dorman 679-021 exhaust crossover pipe requires no welding, making it suitable for professional mechanics and experienced DIYers. Ensure the flanged connections are properly aligned and use the included gaskets to prevent exhaust leaks. Verify that the pipe’s 3.25 inch outside diameter matches the existing exhaust pipe dimensions on your Ford Escape or Mercury Mariner before installation. Proper torque on flange bolts is recommended to maintain a secure fit.

Quality Assurance and Warranty Information

Dorman manufactures this exhaust crossover pipe to meet or exceed OEM standards for fit and function. The stainless steel construction offers resistance to corrosion and heat, contributing to long service life. This part number 679-021 is backed by Dorman’s quality assurance processes, providing confidence in durability and performance for Ford Escape and Mercury Mariner exhaust repairs.

BrandDorman
Part Number679-021
MaterialStainless steel
Inlet Outside Diameter3.25
Outlet Outside Diameter3.25
Length34
ColorNatural
Flanged InletYes
Flanged OutletYes
Clamps IncludedNo
FinishNatural
ShapeSingle pipe
Grade TypeRegular
Hanger IncludedNo
Outlet Quantity1
Mounting Bracket IncludedNo
Catalytic Converter IncludedNot required
Exhaust Pipe Inlet Inside Diameter (in)3 in
Exhaust Pipe MaterialStainless steel
Exhaust Pipe Outlet Inside Diameter (in)3 in
Flange Quantity3
FlangedYes
Gasket or Seal IncludedYes
Inlet Quantity1
Overall Height (in)5 in
Overall Width (in)15 in
Package Contents1 crossover pipe; 2 flange gaskets; 1 donut gasket
Strap Hanger IncludedNo
Welding RequiredNo

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012FordEscape3.0LV6N/A
2011FordEscape3.0LV6N/A
2011MercuryMariner3.0LV6N/A
2010FordEscape3.0LV6N/A
2010MercuryMariner3.0LV6N/A
2009FordEscape3.0LV6N/A
2009MercuryMariner3.0LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

9L8Z5E256B

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.