APWPART FINDER
My Vehicle Add New
  • Select Year
  • Select Make
  • Select Model
  • Select Submodel
  • Select Engine

Catalytic Converter for 2004 Mercury Mountaineer

We have 51 Items In-stock.

Evan Fischer Catalytic Converter

Evan Fischer Catalytic Converter, Front, Traditional Converter, 48-State Legal (Cannot Ship To CA Or NY)
Evan Fischer Catalytic Converter Evan Fischer Catalytic Converter
$341.70 List Price $403.21 Save $61.51 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: REPF960321
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 55.5 in. overall length
  • Inlet Type: Dual (2-bolt and 3-bolt spinner flange)
  • Outlet Type: Single (2-bolt welded flange)
  • Oxygen Sensor Ports: 4
  • Warranty: 5-year or 50,000-mile limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Evan Fischer Catalytic Converter, Front, Traditional Converter, 48-State Legal (Cannot Ship To CA Or NY)
Evan Fischer Catalytic Converter Evan Fischer Catalytic Converter
$440.26 List Price $519.51 Save $79.25 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: REPF960324
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 58.5 in. overall length
  • Inlet Type: Dual (2-bolt and 3-bolt spinner flange)
  • Outlet Type: Single (2-bolt welded flange)
  • Oxygen Sensor Ports: 4
  • Warranty: 5-year or 50,000-mile limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier

Eastern Catalytic Converter

Eastern Catalytic Converter, Eastern ECO II, Rear, Traditional Converter
Eastern Catalytic Converter Eastern Catalytic Converter
$69.92 List Price $164.24 Save $94.32 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST82725
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 6 x 4.25 x 10 in., 14 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
Rating: (see review/s)

"found this web site & got a good deal.fast shipping and a great sales person who took my order." posted by: on July 30, 2014 view all 6 reviews

Eastern Catalytic Converter, Eastern ECO II, Front, Traditional Converter
Eastern Catalytic Converter Eastern Catalytic Converter
$69.92 List Price $164.24 Save $94.32 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST82725
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 6 x 4.25 x 10 in., 14 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Rating: (see review/s)

"found this web site & got a good deal.fast shipping and a great sales person who took my order." posted by: on July 30, 2014 view all 6 reviews

Eastern Catalytic Converter, Eastern Standard, Rear, Traditional Converter
Eastern Catalytic Converter Eastern Catalytic Converter
$68.54 List Price $157.83 Save $89.29 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST83706
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Rating: (see review/s)

"This is a great replacement CAT i bought for my 1996 jeep Grand Cherokee Laredo. while installing the CTA the O2 sensor was a slight issue. It would be nice if there was an option to having which side the O2 sensor was located on. Luckily i had enough wire to rope it to the other side. Other that that minor speed bump it works very well and had a easy time installing it." posted by: Mayo on May 9, 2013 view all 1 reviews

Eastern Catalytic Converter, Eastern ECO II, Front, Traditional Converter
Eastern Catalytic Converter Eastern Catalytic Converter
$68.40 List Price $152.23 Save $83.83 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST82565
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
Rating: (see review/s)

"Cannot beat the price!!!!!! Usually catalytic converters have an arrow telling you which way the exhaust should flow but this one doesnt because I guess it is a bi directional (unless if I just got lucky and put it in the right way)My emissions went down but still did not pass the test. May just be my car being my car. But it still failed regardless." posted by: on January 22, 2014 view all 2 reviews

Eastern Catalytic Converter, Eastern ECO II, Front, Traditional Converter
Eastern Catalytic Converter Eastern Catalytic Converter
$449.20 List Price $1,206.31 Save $757.11 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST30447
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 55.5 in. overall length
  • Replaces OE Number: 2L2Z5F250AB, 4L2Z5F250FA
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Rating: (see review/s)

"great product,price is good,fits good easy to install." posted by: jim on September 9, 2009 view all 1 reviews

Eastern Catalytic Converter, Eastern ECO II, Traditional Converter, 48-State Legal (Cannot Ship To CA Or NY)
Eastern Catalytic Converter Eastern Catalytic Converter
$533.73 List Price $1,364.99 Save $831.26 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: EAST30454
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 58.5 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier

Magnaflow Catalytic Converter

Magnaflow Catalytic Converter, Magnaflow 49-State Semi-Universal, Rear, Traditional Converter
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$111.97 List Price $144.90 Save $32.93 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M6699006HM
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 12 in. L x 6.5 in. W, 16 in. overall length
  • Notes: Slip fit Inlet and outlet attachment type
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
Magnaflow Catalytic Converter, Magnaflow 49-State Semi-Universal, Front, Driver Or Passenger Side, Traditional Converter
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$100.27 List Price $129.77 Save $29.50 Availability: In Stock
  • APW Bestseller
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M6699206HM
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 9 in. L x 5.13 in. W, 13 in. overall length
  • Notes: Does not have provision for O2 sensor
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
  • 6 Cyl 4.0L | Base, Premier
Rating: (see review/s)

"While it is necessary to adapt to pipe size on vehicle, the rear requires leaving part of the previous converter on. i.e. The very end of the old converter. That will be the same OD as the new converrter. The old fitting has to be ground down, or as I did, filed. I might better have used a coupling. When I do the left bank, I may try cutting the old portion off, and adapt down. I shall try the coupling. You must have a local supplier who stocks a wide variety of fittings! They are inexpensive. Remember, the adapters can be shortened to allow slippage while installing. They can always be shortened, but cannot be lengthened once cut off, so measure carefully. Think ahead. Procrastinate. As it is, I am still going to have a friend braze the rear end joint, as it leaks a little. Using a coupling most likely would have avoided the leakage." posted by: suvguy on July 24, 2012 view all 1 reviews

Magnaflow Catalytic Converter, Magnaflow OEM Grade (49-State) Semi-Universal, Rear, Traditional Converter
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$136.20 List Price $176.25 Save $40.05 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M6651006
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, Traditional Converter, 48-State Legal (Cannot Ship To CA Or NY)
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$723.43 List Price $936.20 Save $212.77 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M6693108
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 8 Cyl 4.6L | Base, Premier
Magnaflow Catalytic Converter, Magnaflow 49-State Semi-Universal, Rear, Traditional Converter
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$121.78 List Price $157.60 Save $35.82 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M6699036HM
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Magnaflow Catalytic Converter, Magnaflow 50-State Direct-Fit, Traditional Converter, 50-State Legal
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$870.24 List Price $1,126.19 Save $255.95 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M66455013
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • EO Number: D-193-115
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier
Magnaflow Catalytic Converter, Magnaflow 50-State Semi-Universal, Driver Or Passenger Side, Traditional Converter
Magnaflow Catalytic Converter Magnaflow Catalytic Converter
$351.75 List Price $455.20 Save $103.45 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
(

more

)
  • SKU#: M66455304
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • EO Number: D-193-115
  • Notes: Inlet/Outlet Size : 2in. I.D.
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Mercury Mountaineer submodels:
  • 6 Cyl 4.0L | Base, Premier