fits model: F150, Romeo. make: Ford. year: 2004–2006.

( Brand: Ford Truck ), ( Manufacturer Part Number: 4S842AA ), ( Model: F150NEW ), ( Part Type: Engine ), ( Genuine Oem: Yes ), ( Ipn: 300-09004a ), ( Manufacturer Warranty: 6 Month )
The Ford 4S842AA engine, also known as the 6.4L Power Stroke 8th generation Romeo, is a powerful and reliable engine that was primarily used in the Ford F-150 trucks from 2004 to 2006. This engine is known for its exceptional performance and fuel efficiency, making it a popular choice among truck enthusiasts and drivers who require a powerful engine for towing and hauling heavy loads.
The Ford 4S842AA engine is equipped with a 6.4L (387 cubic inch) displacement and features a SOHC (Single Overhead Camshaft) design with four valves per cylinder. This engine is powered by a turbocharger and intercooler system, which helps to increase power and torque, allowing the engine to produce a maximum output of 320 horsepower at 3,000 RPM and 550 lb-ft of torque at 2,000 RPM.
One of the standout features of the Ford 4S842AA engine is its state-of-the-art fuel injection system, which uses a high-pressure common rail design to deliver precise fuel injection into each cylinder. This system helps to improve fuel efficiency, reduce emissions, and provide smoother and more powerful engine performance.
The engine block of the Ford 4S842AA is made of cast iron, which provides excellent durability and heat resistance. The engine also features a cast-aluminum cylinder head, which helps to reduce weight and improve cooling efficiency. The engine's crankshaft is made of forged steel, which provides strength and durability, while the connecting rods and pistons are made of high-quality materials to ensure reliable engine performance.
The Ford 4S842AA engine is equipped with a heavy-duty oil pump and oil filter, which help to ensure proper lubrication and protection of the engine's moving parts. The engine also features a high-capacity cooling system, including a large radiator and fan, which help to keep the engine running cool and efficiently, even under heavy loads.
Overall, the Ford 4S842AA engine is a powerful and reliable engine that is well-suited for towing and hauling heavy loads. Its turbocharged and intercooled design, high-pressure fuel injection system, and durable construction make it a reliable and efficient choice for truck enthusiasts and drivers who demand the best performance from their vehicle. Whether you're looking to upgrade your current Ford F-150 or are in the market for a powerful and reliable engine for your next project, the Ford 4S842AA engine is a great option to consider.
Pros of buying a Ford 4S842AA engine (6L 8th Romeo, 04-06 F150):1. Reliability: These engines have a proven track record for durability and dependability, making them a popular choice among Ford enthusiasts.
2. Power: The 6L 8th Romeo engine provides ample power, delivering a solid performance in both towing and daily driving.
3. Availability of parts: Due to its popularity, replacement parts for this engine are widely available, making repairs and maintenance relatively straightforward.
4. Fuel efficiency: Compared to some other V8 engines, the 6L 8th Romeo is relatively fuel-efficient, which can save you money in the long run.
Cons of buying a Ford 4S842AA engine (6L 8th Romeo, 04-06 F150):1. Size and weight: The engine is quite large and heavy, which can impact fuel efficiency and may require modifications to the vehicle's suspension to accommodate the additional weight.
2. Cost: While the engine is generally reliable and parts are readily available, the cost of purchasing a used engine, installing it, and performing any necessary maintenance can add up.
3. Emissions: Depending on the year and specific model, the 6L 8th Romeo may not meet current emissions standards, which could impact its legality in certain areas.
Conclusion: The Ford 4S842AA engine is a reliable and powerful option for many F150 owners, particularly those who need the additional horsepower for towing or heavy-duty applications. However, its size and weight, as well as potential emissions issues, should be carefully considered before making a purchase. If you are willing to invest in the necessary modifications and maintenance, this engine can provide years of trouble-free service.
Recommendation: If you are in the market for a used 6L 8th Romeo engine, I would recommend thoroughly researching the specific engine and vehicle history before making a purchase. Look for any known issues or problems with the engine and ensure that it has been properly maintained. Additionally, consider the cost of installation, maintenance, and any necessary modifications to your vehicle. With careful consideration and due diligence, you can find a high-quality used 6L 8th Romeo engine that will serve you well.
Engine Warranty, 19. Prior to removing part or attempting any repair. It is recommended buyer replace front seal prior to installation. Help Engine Assembly.
Keep your receipt. Parts external to the, cylinder block and the head .e. Transmission Warranty, 25. Parts Damaged or altered by customer are not warranted.
Used engines guaranteed against rod knock, excessive smoking, and oil consumption for 6 months. These, are left on the engine for installers convenience ONLY. All engines are sold as a long block only and will not include engine accessories. NOTE: Image shown may be the vehicle from which, part was pulled, or a generic image representing, typical stock, rather than unique item being sold.
Makes no claim as to the suitability of any part for a particular purpose. No warranty on seals, gaskets, fluids, or coolant. Non-rebuild able or incomplete cores are not acceptable for credit. No expedited shipping is available.
It is recommended buyer replace the rear main seal and inspect gaskets prior to installation. No claim made on body parts, colors or trim packages. Oil cooler and transmission lines must be flushed. Used engines are guaranteed not to have cracked block, head or bad crankshaft.
Carburetor, distributor, fuel pump, etc. Are not warranted.