CADILLAC 1644629 Gm Allante Intake Manifold 4.5L

( Type: Intake Manifold ), ( Engine Size: 4.5l ), ( Manufacturer Part Number: 1644629 )

Review CADILLAC Gm Allante Intake Manifold 4.5l New Oem fits 1989–1991

Cadillac Replacement Intake Manifold for 1989, 1990, and 1991 Allante (4.5L, Part Number: 1644629)

This Cadillac intake manifold is a genuine OEM replacement part designed specifically for 1989, 1990, and 1991 Allante models equipped with the 4.5L engine. Manufactured by GM, this intake manifold is meticulously crafted to ensure superior performance, reliability, and a perfect fit in your vehicle.

The intake manifold plays a crucial role in the engine's combustion process by distributing air evenly from the air filter to each cylinder. In this Cadillac part, you'll find an intricately designed plenum and runners, engineered to optimize airflow and improve engine efficiency.

Constructed from high-quality materials, this intake manifold is built to withstand the test of time. The manifold's durable cast aluminum design not only enhances its longevity but also reduces its weight for optimal engine performance.

This genuine Cadillac replacement intake manifold comes fully assembled with all necessary gaskets and hardware included for a hassle-free installation process. By choosing this part, you'll not only restore the functionality of your engine but also maintain the originality of your Allante.

In summary, this Cadillac 1644629 intake manifold is a must-have for any Cadillac Allante owner with a 4.5L engine in need of a replacement. Its OEM quality, precise engineering, and easy installation make it an excellent choice for those looking to keep their vehicles running at their best.

Buying a Cadillac Allante intake manifold for a 4.5L engine from the years 1989 to 1991 (GM part number 1644629) comes with several potential advantages and disadvantages. Here's a brief analysis of each:

1. OEM Part: This intake manifold is an original equipment manufacturer (OEM) part, which means it is designed, manufactured, and tested by General Motors for the Cadillac Allante. This ensures proper fitment and compatibility with other engine components.

2. Performance: A new or refurbished intake manifold can improve engine performance by ensuring optimal air-fuel mixture delivery to the engine. This can lead to better fuel efficiency and increased horsepower.

3. Reliability: A new or rebuilt intake manifold can provide improved reliability compared to a worn-out or faulty one. This can help prevent potential engine issues and reduce the need for costly repairs.

1. Cost: The price of a new or rebuilt intake manifold can be relatively high compared to aftermarket alternatives. This may be a significant factor for some buyers, especially if they are working on a tight budget.

2. Availability: Depending on the specific year and condition of the intake manifold, availability may be a concern. It may take some time and effort to locate a new or rebuilt manifold, especially if it is not readily available from local parts suppliers.

3. Installation Complexity: Installing an intake manifold can be a complex process, especially for those without extensive mechanical experience. The process requires careful attention to detail and the proper tools to ensure proper fitment and function.

The decision to buy a Cadillac Allante intake manifold (GM part number 1644629) for a 4.5L engine from the years 1989 to 1991 ultimately depends on several factors, including budget, availability, and personal experience with automotive repairs. While there are advantages to using an OEM part for performance and reliability, the cost and installation complexity may be significant drawbacks for some buyers.

If you have the budget and the necessary mechanical skills, purchasing a new or rebuilt Cadillac Allante intake manifold (GM part number 1644629) can be a worthwhile investment for improved engine performance and reliability. However, if cost is a concern or you lack the necessary mechanical skills for installation, it may be worth considering aftermarket alternatives or seeking professional assistance.

Details:

I ship via USA Post Office, Fed Ex, or UPS depending on cost. This item is brand NEW - as shown in picture. GENUINE GM 1644629 INTAKE MANIFOLD. FITS: 1989 - 1991 CADILLAC ALLANTE WITH 4.5L ENGINE.

part #: 1644629 prices

• $81.18-$199.99

specifications inputmanifolds:

• for makes: Cadillac
• for years: 1989-1991
• type: Intake Manifold
• engine size: 4.5l
• manufacturer part number: 1644629

returns inputmanifolds:

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

payments inputmanifolds:

• wallet: Paypal
• other
• credit card: Visa

shipping inputmanifolds:

• service: USPS Ground Advantage
• cost: $0.00
• carrier: USPS
• class: Standard
• type: Fixed
• transit: 4-10 Days

seller inputmanifolds:

• rating: 99.4%
• # reviews: 18566
• city: Deerfield, Wisconsin

general inputmanifolds:

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

offer inputmanifolds:

• sold: 0
• availability: In Stock
• quantity: 1
• started: November 22, 2025
• options: Ship-to-home

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