FORD B8AZ-9A589 Carburetor Secondary Throttle Shaft 65-68 289 4100 4V

( Manufacturer Part Number: B8AZ-9A589 ), ( Material: Metal ), ( Vintage Part: Yes ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Square Bore ), ( Oe/oem Part Number: C7az-9a58992 ), ( Features: Down Draft ), ( Universal Fitment: No )

Review FORD 65-68 289 4v Carburetor Secondary Throttle Shaft fits MUSTANG

Ford B8AZ-9A589 65-68 Mustang 289 4100 4V Carburetor Secondary Throttle Shaft

The Ford B8AZ-9A589 secondary throttle shaft is a crucial component of the 4100 4V carburetor system found in 1965 to 1968 Ford Mustang models equipped with the 289 cubic inch V8 engine. This part is essential for maintaining the optimal fuel-air mixture for smooth engine performance.

This throttle shaft is a precision-engineered, replacement component designed to fit and function identically to the original equipment manufactured (OEM) part. Its construction is primarily of high-strength steel, ensuring durability and reliability. The shaft features a polished finish, which not only enhances its aesthetic appeal but also offers protection against corrosion.

One of the critical functions of the secondary throttle shaft is to control the opening and closing of the secondary throttle valves. These valves are responsible for modulating the airflow into the engine during acceleration. A worn or damaged secondary throttle shaft can cause rough idling, poor acceleration, and other drivability issues.

Installing the Ford B8AZ-9A589 secondary throttle shaft is a straightforward process, making it a popular choice among Mustang enthusiasts and restoration projects. The shaft comes complete with the necessary hardware, including the gaskets and bolts, ensuring a hassle-free installation experience.

By replacing a worn or damaged secondary throttle shaft with this genuine Ford part, you'll not only restore the carburetor system to its original performance but also improve the overall driving experience of your classic Mustang.

In summary, the Ford B8AZ-9A589 65-68 Mustang 289 4100 4V Carburetor Secondary Throttle Shaft is a vital component for maintaining the fuel-air mixture in your classic Mustang's engine. Its high-quality construction, ease of installation, and OEM fit make it an excellent choice for Mustang enthusiasts and restoration projects alike.

Pros and Cons of Buying a Ford B8AZ-9A589 65-68 Mustang 289 4100 4V Carburetor Secondary Throttle Shaft

a. Authenticity: This carburetor secondary throttle shaft is an original Ford part, ensuring a perfect fit and reliable performance for your classic Mustang.

b. Improved Performance: This part is specifically designed for 4-barrel carburetors, which can provide better fuel mixture and airflow for increased horsepower and torque.

c. Durability: Ford parts are known for their high-quality construction and durability. This throttle shaft is no exception, as it is made to withstand the rigors of classic car usage.

d. Availability: As an original Ford part, it is widely available through authorized dealers and online retailers, making it easy to find and purchase.

a. Cost: Original Ford parts can be more expensive than aftermarket alternatives. This throttle shaft may be pricier than some aftermarket options.

b. Complex Installation: Installing a carburetor secondary throttle shaft can be a complex process, especially for those without experience in automotive repair.

c. Limited Compatibility: This part is specifically designed for the 65-68 Mustang 289 with a 4100 4V carburetor. It may not be compatible with other Mustang models or carburetors.

The decision to buy a Ford B8AZ-9A589 65-68 Mustang 289 4100 4V Carburetor Secondary Throttle Shaft depends on your priorities as a classic car owner. If you value the authenticity and reliability of an original Ford part, and you're willing to pay a premium for it, then this throttle shaft could be a worthwhile investment. However, if you're looking for a more cost-effective alternative or you're not concerned with using an original part, then you might consider exploring aftermarket options. Ultimately, it's essential to weigh the pros and cons carefully and consider your budget, experience level, and compatibility requirements before making a purchase.

If you're committed to using an original Ford part for your classic Mustang and have the budget for it, then the Ford B8AZ-9A589 65-68 Mustang 289 4100 4V Carburetor Secondary Throttle Shaft is an excellent choice. However, if you're looking for a more cost-effective alternative or you're not concerned with using an original part, then you might consider exploring aftermarket options. Just make sure to thoroughly research the aftermarket part's compatibility, performance, and durability before making a purchase.

Details:

part #: b8az9a589 prices

• $66.80-$400.00

specifications carbcoon:

• for models: Mustang
• for makes: Ford
• mpn: B8az-9a589
• material: Metal
• vintage part: Yes
• choke type: Mechanical
• type: Carburetor
• mounting flange type: Square Bore
• oe/oem part number: C7az-9a58992
• features: Down Draft
• universal fitment: No

payments carbcoon:

• credit card: Diners-club
• other
• wallet: Apple-pay

offer carbcoon:

• started: May 17, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0

shipping carbcoon:

• carrier: USPS, UPS
• cost: $11.70
• class: Standard, Expedited, Economy
• service: USPS Ground Advantage, USPS Priority Mail Small Flat Rate Box, UPS Ground Saver, UPS Ground
• type: Calculated
• transit: 4-9 Days

returns carbcoon:

• policy: Returns Accepted
• paid by: Buyer
• time: 14 Days

general carbcoon:

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

seller carbcoon:

• rating: 99.9%
• # reviews: 7386
• city: Tower City, Pennsylvania

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