Summit Racing SpeedCard - learn how to get 10% back up to $100

Make/Model Search
Make/Engine Search

Brands
Savings Central
Contact Us
Help Center

My Garage
Wish List
Order Status & Returns

Welcome
My Account

Order Status

Wish List
Savings Central
Shop by Brand
Shop Your Passion
- Shop Your Passion
- Truck / SUV
  
  Jeep®
  
  Restoration
  
  Stock Replacement
  
  Late Model Muscle
  
  Tools
  
  Gifts, Clothing, & More
  
  Circle Track
  
  Street Rod
  
  Powersports
  
  Paint & Body
  
  Marine
  
  Jr Dragster
Gift Cards
My Garage
See Our Catalogs
News & Events
Career Opportunities
Contact Us
Help Center
New Products
Shop by Make/Model
Sign In

Search Make/Model

Search Make/Engine

Sign In

Welcome
Account Dashboard
Profile
Order Status & Returns
Buy It Again
Wish List
Rewards Program
Gift Cards & Summit Bucks
Address Book
My Garage Settings
Email Preferences
Text Notifications
My Reviews
My Questions
Catalogs
Tax Exemption
Sign In

Summit Racing SpeedCard - learn how to get 10% back up to $100

Save With Limited-Time Deals on Exterior Parts & Accessories Today!

Filters

In Stock
- In Stock Items, Including at a Supplier. Ships In a Few Days. (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (17) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Brand
- MagnaFlow (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Walker Exhaust (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Universal
- No (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Submodel
- PREMIER
- BASE
- LUXURY
- CONVENIENCE
Make/Engine
Drivetrain
- AWD (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- RWD (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4WD (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Emissions
- California EO Approved (5)
Catalytic Converter Position
- Left (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Right (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inlet Quantity
- 1 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inlet Diameter (in.)
- 2.00 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.25 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.50 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Converter Inlet Attachment
- Stock flange (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Slip fit (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Outlet Quantity
- 1 (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filter Options
- Stock Replacement (2)
Savings Central
- Free Shipping (1)

Selected Filters

Filter Results by Vehicle

Loading...

Home
Exhaust
Catalytic Converters
MERCURY MOUNTAINEER
Product Results

Availability

- In Stock Items, Including at a Supplier. Ships In a Few Days. (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (17) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Brand
- MagnaFlow (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Walker Exhaust (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Universal
- No (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Model
Submodel
- PREMIER
- BASE
- LUXURY
- CONVENIENCE
Make/Engine
Drivetrain
- AWD (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- RWD (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4WD (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Emissions
- California EO Approved (5)
Catalytic Converter Position
- Left (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Right (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inlet Quantity
- 1 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inlet Diameter (in.)
- 2.00 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.25 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.50 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Converter Inlet Attachment
- Stock flange (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Slip fit (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Outlet Quantity
- 1 (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filter Options
- Stock Replacement (2)
Savings Central
- Free Shipping (1)

MERCURY MOUNTAINEER Catalytic Converters

Showing In Stock Items. Show All 17 Items.

Individual Parts

Part Groups

Results 1 - 6 of 6

Walker CalCat Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 83574

Walker CalCat Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 83574

Walker CalCat Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 83574

Catalytic Converter, Cal-Cat Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Heat Shield, Ford, Mercury, Each

Part Number: WLK-83574

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

...Loading

Estimated Ship Date: May 27, 2026 if ordered today

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters for 1997-2000 EXPLORER, 1999-2000 MOUNTAINEER - 4451315

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters for 1997-2000 EXPLORER, 1999-2000 MOUNTAINEER - 4451315

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters for 1997-2000 EXPLORER, 1999-2000 MOUNTAINEER - 4451315

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Left Position, 27.875 in. Overall Length, Ford, Mercury, 4.0L, Each

Part Number: MPE-4451315

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

...Loading

Estimated Ship Date: May 14, 2026 if ordered today

MagnaFlow Universal Catalytic Converters 5451356

MagnaFlow Universal Catalytic Converters 5451356

MagnaFlow Universal Catalytic Converters 5451356

Catalytic Converter, Universal, 13.00 in. Length, 2.50 in. Inlet and Outlet, Each

Part Number: MPE-5451356

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

...Loading

Estimated Ship Date: May 15, 2026 if ordered today

MagnaFlow Catalytic Converters 5551356

MagnaFlow Catalytic Converters 5551356

MagnaFlow Catalytic Converters 5551356

Catalytic Converter, Universal Catalytic Converter - 2.5in.

Part Number: MPE-5551356

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

...Loading

Estimated Ship Date: May 15, 2026 if ordered today

MagnaFlow Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 49575

MagnaFlow Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 49575

MagnaFlow Direct-Fit Catalytic Converters for 2002-2004 EXPLORER, MOUNTAINEER - 49575

Catalytic Converter, Stainless Steel, Each

Part Number: MPE-49575

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

...Loading

Estimated Ship Date: May 15, 2026 if ordered today

Walker CalCat Direct-Fit Catalytic Converters for 2004-2005 EXPLORER, MOUNTAINEER - 83445

Walker CalCat Direct-Fit Catalytic Converters for 2004-2005 EXPLORER, MOUNTAINEER - 83445

Walker CalCat Direct-Fit Catalytic Converters for 2004-2005 EXPLORER, MOUNTAINEER - 83445

Converter-CalCat-Direct Fit

Part Number: WLK-83445

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

...Loading

Estimated Ship Date: May 27, 2026 if ordered today

1

Page 1 of 1

Modal Header

Contact us with questions.

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify

Stay Updated with Emails from Summit Racing

Never miss a sale on new parts, tools, and more!

= Required

First Name

Last Name

Email Address Email required

See Our Catalogs

News & Events

News & Events Home
OnAllCylinders (blog)
Calendar of Events
New Product Releases
Summit Racing News
News You Can Use
Featured Vehicles
Media Center
Sanctioning Bodies

Help

Help Center
Return Policy
Beat-A-Price Guarantee
Payment Options
Contact Us

Social

Facebook
X/Twitter
Instagram
Pinterest
YouTube
Podcast

About Summit

Corporate History
Retail Locations

My Account

Profile
Email Preferences
Order Status & Returns
Wish List
Address Book
My Reviews
My Questions
My Garage
Sign In

Career Opportunities

More

Summit Racing Credit Card
Gift Cards
Calculators & Tools
Promo Exclusions
Become an Affiliate
Summit Racing Rewards Program
Summit Racing Equipment Protection Plan

Terms of Use | Privacy and Security | Site Accessibility
Copyright 2026 by AUTOSALES, INCORPORATED
dba Summit Racing Equipment | Trademarks

Let's Build it Together^™

Modal Header