CARTER 21-172S Carburetor Float Carb 40 V8 2BBL

( Brand: Carter ), ( Type: Float ), ( Manufacturer Part Number: 21-172S ), ( Material: Brass ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review CARTER Carburetor Brass Float Buick 40 V8 Carb fits 1955-60

Carter YF Series Carburetor Float (21-172S) for 1955-60 Buick 40 V8 2bbl Carburetor

The Carter YF Series Carburetor Float (Part Number: 21-172S) is a crucial component designed specifically for the 1955-60 Buick 40 V8 2bbl carburetor. This float plays a vital role in ensuring optimal engine performance by maintaining the correct fuel level in the carburetor's float bowls.

This float is manufactured under rigorous quality control standards to guarantee precision and durability. It features a smooth, polished surface that not only enhances its aesthetic appeal but also reduces the risk of fuel spills and leaks. The 21-172S float is made from high-density, impact-resistant rubber material that can withstand the rigors of daily driving and the harsh conditions of extended use.

The unique design of the Carter 21-172S float includes a specially engineered venturi tip that helps maintain consistent fuel flow to the carburetor jets. This results in a smooth, even throttle response and improved engine performance. The float also incorporates an adjustable vent system that allows fine-tuning of the fuel mixture, ensuring optimal engine efficiency and reduced emissions.

Installing the 21-172S float in your 1955-60 Buick 40 V8 2bbl carburetor is a straightforward process. Simply remove the old float and replace it with the new one. No special tools or mechanical expertise are required. However, it's always recommended to consult your vehicle's service manual or a qualified mechanic for any installation or maintenance procedures to ensure the best possible results.

In conclusion, the Carter YF Series Carburetor Float (21-172S) is an essential upgrade for your 1955-60 Buick 40 V8 2bbl carburetor. Its superior design, durability, and ease of installation make it an excellent choice for enhancing your engine's performance and ensuring reliable operation.

Buying a Carter YF/YS Series float (model 21-172) for a 1955-60 Buick 40 V8 2bbl carburetor involves considering both advantages and potential disadvantages.

1. OEM compatibility: The Carter float is originally designed for Buick 40 V8 engines, ensuring a precise fit and optimal engine performance.

2. Availability: Carter floats are widely available at various automotive parts stores and online marketplaces, making them easily accessible for buyers.

3. Affordability: Compared to other aftermarket or rebuilt floats, Carter OEM floats are often more cost-effective, particularly for those seeking a budget-friendly option.

1. Wear and tear: OEM floats, like the Carter 21-172, may show signs of wear and tear after extended use, which could lead to the need for replacement.

2. Limited performance improvements: Although the OEM float should provide the same performance as the original, those seeking improved engine performance may need to consider aftermarket floats with additional features.

3. No upgrades: OEM floats like the Carter 21-172 do not offer any additional upgrades or modifications, which may be a limitation for some buyers.

In conclusion, purchasing a Carter 21-172 float for a 1955-60 Buick 40 V8 2bbl carburetor offers the benefits of OEM compatibility, availability, and affordability. However, it may not provide significant performance improvements and could require replacement due to wear and tear. Ultimately, the decision to buy an OEM Carter float depends on the individual's priorities, budget, and specific performance needs. If seeking improved engine performance, alternative aftermarket floats may be a better choice.

part # 21172s prices

• $35.00-$80.00

specifications carbcaddie:

• for makes: Buick
• for years: 1955-60
• brand: Carter
• type: Float
• manufacturer part number: 21-172S
• material: Brass
• vintage part: Yes
• country of origin: United States

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offer carbcaddie:

• started: February 20, 2026
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• quantity: 2
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• class: Standard
• type: Fixed
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• # reviews: 12204
• rating: 99.7%

general carbcaddie:

• condition: New other see details
• Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts

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