2003 Mercury Mountaineer Performance Headers

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  • 4.6L
    • (0 reviews)
      # mpn583856276
      Mercury Mountaineer 4.6L 2003, Super Competition™ Exhaust Header Gasket by Hooker®. Hooker's precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is constructed...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.47
    • (0 reviews)
      # mpn358507478
      Mercury Mountaineer 4.6L 2003, Multi-Layer Steel Exhaust Header Gasket by Cometic Gasket®. Material: Multi-Layer Steel. Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # mpn3242576154
      Mercury Mountaineer 4.6L 2003, Exhaust Header Gasket by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees - day...
      Designed to crush 50%.This allows them to fill gaps in the flange surface up to 1/16"3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $34.39
    • (0 reviews)
      # 652268801
      Mercury Mountaineer 4.6L 2003, Vibe-Lock Header Bolt Kit by Percy's High Performance®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to...
      Built to match your exact requirementsHigh quality you can rely on
      $83.00 - $105.69
    • (0 reviews)
      # mpn3557984096
      Mercury Mountaineer 4.0L 2003, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $54.22
    • (0 reviews)
      # 231135768
      Mercury Mountaineer 2003, Cast Iron Natural Exhaust Manifold by Dorman®. Emissions: CARB compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $83.95 - $100.95
    • (0 reviews)
      # 231322349
      Mercury Mountaineer 2003, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $5.82 - $7.79
    • (0 reviews)
      # 24176870
      Mercury Mountaineer 2003, Exhaust Manifold Gasket Set by Victor Reinz®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
      High quality at an affordable priceExpertly made from premium materials
      $6.15 - $37.23
    • (0 reviews)
      # mpn4497861919
      Mercury Mountaineer 4.6L 2003, Exhaust Manifold Gasket Set by Mahle®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...
      High quality at an affordable priceExpertly made from premium materials
      $46.85
    • (0 reviews)
      # 630383340
      Mercury Mountaineer 2003, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $3.36 - $3.99
    • (0 reviews)
      # 231135681
      Mercury Mountaineer 2003, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $5.15 - $5.77
    • (0 reviews)
      # 581622039
      Mercury Mountaineer 4.6L 2003, Metal Exhaust Manifold Hardware Kit by Dorman®. Material: Metal. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions...
      Direct replacement for a proper fitBuilt to Last
      $6.20 - $6.60
    • (0 reviews)
      # 1022159046
      Exhaust Header by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to detail to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $139.75 - $548.31
    • (0 reviews)
      # 1022137080
      Dirt Late Model Exhaust Header by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $348.03 - $640.27
    • (0 reviews)
      # 1022602060
      Sprint Car Exhaust Header by Schoenfeld Headers®. Emissions: Racing Only. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and...
      $221.66 - $591.15
    • (0 reviews)
      # 231322344
      Mercury Mountaineer 2003, Natural Exhaust Manifold by ATP®. Emissions: EPA compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $74.16 - $96.24


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