LINCOLN 329-01636A Air Intake Manifold B4X9C

( Part Type: Intake Manifold ), ( Ipn: 329-01636a ), ( Fitment Type: Direct Replacement ), ( Modified Item: No ), ( Manufacturer Warranty: Unspecified Length )

Review LINCOLN Air Intake Manifold fits NAVIGATOR 1999–2001

The Lincoln Navigator, a luxurious full-size SUV, was manufactured between 1997 and 2002. During its production span, the 1999-2001 models featured the 4.6L SOHC 2Valve V8 engine. One of the crucial components of this engine is the air intake manifold, specifically part number 329-01636A, which is B4X9C in Ford applications.

This air intake manifold is a critical piece of the engine's intake system, responsible for distributing air from the air filter to the engine's cylinders. It is an asymmetrical design, meaning it has unequal runner lengths to optimize airflow for various engine conditions. It is made of aluminum, a lightweight yet robust material, ensuring durability and thermal conductivity.

The 329-01663A intake manifold is equipped with a throttle body integrated into the design, featuring an electronic throttle control system. This system allows for precise control of engine RPMs, ensuring smooth acceleration and improved fuel efficiency. It also includes an integrated mass airflow sensor, which measures the amount of air entering the engine to calculate the correct fuel mixture for optimal engine performance.

This intake manifold is specifically designed for the 1999-2001 Lincoln Navigator and is a direct replacement for the original part. It is engineered to meet or exceed OEM specifications, ensuring a reliable and hassle-free installation. The gasket surfaces are precision machined to ensure a perfect seal and prevent leaks. Additionally, the intake runners are smooth and evenly tapered, ensuring optimal airflow and power delivery.

In summary, the Lincoln Navigator 329-01636A air intake manifold is a crucial component of the 4.6L SOHC 2Valve V8 engine found in the 1999-2001 Navigator models. It is an aluminum, asymmetrical design, featuring an integrated throttle body and mass airflow sensor, ensuring precise control and optimal engine performance. It is a direct replacement for the OEM part, ensuring a reliable and hassle-free installation.

Pros and Cons of Buying a Lincoln Navigator Air Intake Manifold (B4X9C) for 1999-2001 Models

a. Improved Air Flow: Replacing the old air intake manifold with a new one can lead to improved air flow, enhancing the overall performance of the engine.

b. Fuel Efficiency: A more efficient combustion process due to proper air-fuel mixture can lead to better fuel economy.

c. Reduced Emissions: A smoother combustion process results in fewer emissions, making the vehicle more eco-friendly.

d. Reliability: A new air intake manifold can help increase the longevity of the engine by reducing the strain on other components.

a. Cost: The price point for a new air intake manifold is relatively high compared to some other aftermarket parts.

b. Installation Complexity: The process of installing the new manifold can be complex, requiring specialized tools and expertise. It might be best to consult a professional mechanic for this task.

c. Time Consuming: The installation process can take several hours, making it a time-consuming endeavor.

d. Potential for Vacuum Leaks: During the installation process, there is a risk of creating vacuum leaks, which could result in poor engine performance or check engine lights.

The decision to buy a new Lincoln Navigator air intake manifold (B4X9C) for 1999-2001 models involves weighing the potential benefits against the costs and challenges. While the new manifold promises improved air flow, better fuel efficiency, and reduced emissions, it comes at a higher price point and requires a complex installation process.

If you are experiencing significant performance issues with your Navigator's engine, and after consulting with a mechanic, you determine that a new air intake manifold is the best solution, then it is recommended to go ahead and invest in the part. However, for those looking for a more cost-effective solution or those who are not experiencing noticeable performance problems, other options, such as regular engine tune-ups or using high-performance air filters, might be worth considering.

Details:

Please also use the pictures to ensure a proper fit. Shipping is via USPS or UPS. This 1999 2000 2001 Lincoln NAVIGATOR Intake Manifold is in overall good condition. Most electronic parts are not plug and play.

part #: 329-01636a prices

• $174.99-$310.58

specifications inputmanifolds:

• for models: Navigator
• for makes: Lincoln
• for years: 1999-2001
• part type: Intake Manifold
• interchange part number: 329-01636A
• fitment type: Direct Replacement
• modified item: No
• manufacturer warranty: Unspecified Length

general inputmanifolds:

• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds
• condition: Used

shipping inputmanifolds:

• cost: $0.00
• class: Standard, Expedited
• transit: 3-6 Days
• type: Fixed
• service: Standard, Expedited

returns inputmanifolds:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

payments inputmanifolds:

• wallet: Paypal
• other
• credit card: Visa

offer inputmanifolds:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1
• started: January 30, 2026

seller inputmanifolds:

• rating: 99.1%
• # reviews: 73965
• city: Las Vegas, Nevada

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