FORD RFXL3E9431EC Left Exhaust Manifold For 5.4

( Fitment Type: Direct Replacement ), ( Mounting Hardware Included: No ), ( Manufacturer Warranty: 30 Days ), ( Type: Left Exhaust Manifold ), ( Manufacturer Part Number: RFXL3E9431EC ), ( Year: 2001 ), ( Engine Size: 5.4 ), ( Engine Code: 1g876aa ), ( Valvetrain Iteration: Sohc ), ( Transmission Type: Automatic ), ( Location Id: 56j010 ), ( Vehicle Id: 12964 )

Review FORD Left Exhaust Manifold 5.4 fits F-150 1999–2004

Ford RFXL3E9431EC Left Exhaust Manifold for 1999-2004 F-150 5.4L

The Ford RFXL3E9431EC left exhaust manifold is an essential component of the exhaust system for the 1999-2004 F-150 pickup trucks equipped with the 5.4L engine. This exhaust manifold is designed to provide efficient and reliable performance, ensuring an optimal driving experience.

This exhaust manifold is a factory original replacement, meaning it is an exact match to the original equipment in terms of design, material, and fitment. It is engineered using high-strength cast iron, which ensures durability and resistance to thermal shock and fatigue. The ports on this manifold are specifically designed to optimize gas flow, resulting in improved engine performance and reduced exhaust gas temperatures.

The RFXL3E9431EC left exhaust manifold features a compact design that fits snugly against the engine block and cylinder heads. This ensures a secure connection, reducing the risk of exhaust leaks and improving overall exhaust system efficiency. The manifold also features integrated exhaust gas recirculation (EGR) ports, allowing the engine to recirculate a portion of the exhaust gas back into the combustion chamber. This helps to reduce harmful emissions and improve fuel efficiency.

Installation of this exhaust manifold is straightforward and can be completed using common hand tools. Ford provides detailed instructions in the installation manual, ensuring a hassle-free experience for the DIY enthusiast. For those who prefer professional installation, this exhaust manifold is widely available through authorized dealers and repair shops.

In summary, the Ford RFXL3E9431EC left exhaust manifold is a high-quality, factory original replacement component designed to restore the performance and efficiency of the exhaust system on 1999-2004 F-150 5.4L pickup trucks. With its durable cast iron construction, optimized gas flow design, and secure fitment, this exhaust manifold is an essential upgrade for any F-150 owner looking to maintain the peak performance of their vehicle.

Buying a Ford RFXL3E9431EC left exhaust manifold for a 1999-2004 F-150 with a 5.4L engine can be a consideration for those experiencing issues with their existing manifold or seeking performance upgrades. Here are some potential pros and cons of this purchase:

1. OEM (Original Equipment Manufacturer) part: This manifold is a factory-original replacement, ensuring a proper fit, finish, and durability.

2. Improved performance: A new manifold can potentially result in better engine performance by reducing exhaust gas leaks and improving the flow of exhaust gases.

3. Enhanced fuel efficiency: By reducing exhaust gas leaks, the engine can run more efficiently, leading to potential fuel savings.

4. Longevity: A new manifold can last longer than a worn-out or damaged one, reducing the need for future repairs.

1. Cost: Replacing an exhaust manifold can be an expensive repair, especially if labor costs are factored in.

2. Installation complexity: The installation process can be time-consuming and complex, especially for those without mechanical experience.

3. Potential for other issues: Replacing an exhaust manifold may uncover other hidden issues, leading to additional repair costs.

When considering the purchase of a Ford RFXL3E9431EC left exhaust manifold for a 1999-2004 F-150 with a 5.4L engine, weigh the potential benefits, such as improved performance, enhanced fuel efficiency, and longevity, against the costs, including the expense of the part itself and potential labor costs. If the existing manifold is causing issues or if performance upgrades are desired, the purchase may be worthwhile. However, if the manifold is in good condition and the vehicle is not experiencing any significant performance issues, it might be more cost-effective to hold off on the replacement. Ultimately, the decision should be based on the specific needs and circumstances of the vehicle and its owner.

If you believe that a new exhaust manifold is necessary for your 1999-2004 F-150 with a 5.4L engine, consider purchasing the Ford RFXL3E9431EC left exhaust manifold as a replacement. Ensure that you have the necessary tools and mechanical expertise to install the manifold yourself, or budget for labor costs if you plan to have it installed by a professional. If you're unsure about the condition of your current manifold or if a replacement is necessary, consult a trusted mechanic for their professional opinion.

part # rfxl3e9431ec price

• $54.95

specifications maniheader:

• for models: F-150
• for makes: Ford
• for years: 1999-2004
• fitment type: Direct Replacement
• mounting hardware included: No
• manufacturer warranty: 30 Days
• type: Left Exhaust Manifold
• manufacturer part number: RFXL3E9431EC
• year: 2001
• engine size: 5.4
• engine code: 1g876aa
• valvetrain iteration: Sohc
• transmission type: Automatic
• location id: 56j010
• vehicle id: 12964

returns maniheader:

• policy: Returns Accepted
• time: 60 Days
• paid by: Seller

seller maniheader:

• rating: 99.2%
• # reviews: 59974

payments maniheader:

• credit card: Visa
• wallet: Google-pay
• other

shipping maniheader:

• type: Fixed
• class: Standard
• cost: $0.00
• transit: 4-7 Days
• service: Standard

general maniheader:

• condition: Used
• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

offer maniheader:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: July 20, 2025

Ford RFXL3E9431EC Is Similar To:

• Ford Xl3e9430ac Exhaust Manifold Pair Set For 99-08 F-150 4.2 (76.7% similar) $54.00–$79.95. (August 27th, 2024)
• Ford 9l3e9430ha Exhaust Manifold Pair Set For 09-10 F-150 5.4 (76.7% similar) $49.95–$88.15. (August 27th, 2024)
• Ford 327-00179 2007 F150 Exhaust Manifold Oem 130k Miles - Lkq353018892 (47.7% similar) $70.00–$99.99. (August 27th, 2024)
• Ford 327-01978 2007 F150 Exhaust Manifold Oem 130k Miles - Lkq353018891 (47.7% similar) $49.49–$89.77. (August 27th, 2024)
• Ford 327-00294l Exhaust Manifold Pair Set For 11-19 F-250 Super Duty 6.7 Diesel (55.1% similar) $64.98–$142.41. (August 28th, 2024)
• Ford D30e-8481-ca Vintage Oem Cast Iron Exhaust Manifold (50.4% similar) $329.95–$350.00. (August 29th, 2024)
• Ford 327-00294 2015 F350 Super Duty Exhaust Manifold Oem 174k Miles - Lkq368545652 (45.4% similar) $44.98–$142.41. (August 29th, 2024)
• Ford E6se-9431-aa Lincoln Mustang Town Car 86-90 Oem Exhaust Manifolds Restore (48.2% similar) $40.00–$199.99. (August 29th, 2024)
• Bbk Performance 1512 1-5/8 Inch Exhaust Headers Shorty Equal Length For 1979-1993 Ford Mustang (34% similar) $429.99–$459.58. (August 29th, 2024)
• Ford D3bz-9430-a 68-73 Mustang 250 Inline 6 Cylinder Turbo Modified Chrome Exhaust Manifold (37.3% similar) $270.90–$360.00. (August 29th, 2024)
• Ford 327-00264 Exhaust Manifold 2.5l Fits 12 Fusion 331269 (47.9% similar) $47.49–$80.89. (August 30th, 2024)