Best Car Carburetor Caps of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 9, 2025

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Carburetor caps are essential components of any gasoline engine. They are designed to regulate the flow of fuel into the carburetor, ensuring that the engine runs smoothly and efficiently. These caps are made from high-quality materials that are resistant to heat, corrosion, and wear, making them perfect for use in cars and other vehicles. They come in a variety of sizes and styles to fit different types of carburetors, and are easy to install and maintain. With their reliable performance and long-lasting durability, carburetor caps are a must-have for any car owner or mechanic.

At a Glance: Our Top Picks

Allstar Performance Carburetor Hat -26040 Cover #TOP 1
Allstar Performance Carburetor Hat -26040
ftb score rating icon 9.9
Moroso Carburetor Cap 65802 Cover #TOP 2
Moroso Carburetor Cap 65802
ftb score rating icon 9.8
Allstar Performance Aluminum Carburetor Hat Cover #TOP 3
Allstar Performance Aluminum Carburetor Hat
ftb score rating icon 9.6

Top 10 Car Carburetor Caps

#TOP 1

Allstar Performance Carburetor Hat -26040

Allstar Performance
ALL26040
Plastic
Allstar Performance Carburetor Hat -26040 Cover
Allstar Performance -26040 Black Carburetor Hat

The Allstar Carburetor Hat is designed for high performance and durability. Made from robust plastic, this hat is built to withstand the rigors of automotive applications. Its lightweight construction makes it easy to handle, allowing you to install or replace it without hassle. The design ensures a secure fit, helping to optimize airflow and improve engine performance. With its reliable build, this carburetor hat provides peace of mind, knowing that it will hold up under pressure, making it an excellent choice for any car enthusiast.

What We Like
Durable plastic construction
Lightweight for easy handling
Secure fit for optimal airflow
Enhances engine performance
#TOP 2

Moroso Carburetor Cap 65802

65802
Blue
Moroso Carburetor Cap 65802 Cover
Moroso 65802 Carburetor Cap, Fits 4150 Style Carbs, Blue

The Moroso Carburetor Cap 65802, also known as the Moroso Carb Cap, is a high-quality accessory for your car's carburetor. With its compact design and durable construction, this cap is designed to fit 4150 style carbs perfectly. The package dimensions of 6.13 L x 4.38 H x 5.63 W (inches) make it easy to install and use. Weighing only 0.45 pounds, it is lightweight and won't add unnecessary weight to your vehicle. Made in the United States, you can trust the quality and craftsmanship of this product. The Moroso Carburetor Cap 65802 is the perfect addition to your car's carburetor, providing convenience and protection.

What We Like
Compact Design
Durable Construction
Lightweight
#TOP 3

Allstar Performance Aluminum Carburetor Hat

Allstar Performance
ALL26044
Aluminum
Allstar Performance Aluminum Carburetor Hat Cover
Allstar Performance ALL26044 5-1/8" Mounting Diameter 2.5" Tall Machined Deluxe Model Aluminum Carburetor Hat with Sealing O-Ring

The Allstar Carburetor Hat is designed to protect your carburetor when the air cleaner is taken off. Its aluminum construction ensures durability and safety, making it a reliable choice for your vehicle. With specific fitment for various vehicles, you can be sure it will work well with your setup. Weighing only 1.55 lbs, it's lightweight and easy to handle, allowing for quick installation and removal. The included sealing O-ring adds an extra layer of protection, ensuring a tight seal and preventing any debris from entering your carburetor.

What We Like
Durable aluminum construction
Vehicle-specific fit
Lightweight and easy to handle
Includes sealing O-ring
#TOP 4

Allstar ALL26043 Carburetor Hat

Allstar Performance
ALL26043
Aluminum
Allstar ALL26043 Carburetor Hat Cover
Allstar Performance ALL26043 5-1/8" Mounting Diameter 2.5" Tall Standard Model Spun Aluminum Carburetor Hat

The Allstar ALL26043 is a spun aluminum carburetor hat with a 5-1/8" mounting diameter and 2.5" height. It comes in a single auto part package with dimensions of 27.432 cm (L) X 19.812 cm (W) X 6.096 cm (H). This product is made in the United States and has a model number of ALL26043.

What We Like
Durable spun aluminum material
Easy to install
Provides protection for carburetor
#TOP 5

JEGS Carburetor Cap for Various Models

15221
JEGS Carburetor Cap for Various Models Cover
JEGS Carburetor Cap | Fits Holley, Edelbrock, AFB, Carter, & Quadrajet Carbs | Fits 5-1/8 “ Diameter Neck | Yellow | One Per Package

The JEGS Carburetor Cap is designed to keep your carburetor clean by preventing dust and debris from entering. It fits popular carburetor brands like Holley, Edelbrock, AFB, Carter, and Quadrajet, making it a versatile choice for many users. With a 5-1/8 inch diameter neck, it offers a snug fit. Constructed from bright yellow, high-impact molded plastic, this cap is not only durable but also easy to spot in your garage or workshop. It comes with a 1/4"-20 stud and thumb screw for easy installation, ensuring that you can secure it quickly and efficiently.

What We Like
Prevents dust and debris
Fits multiple carburetor brands
Durable plastic construction
Easy installation
#TOP 6

BUSY-CORNER 105 Pieces Vacuum Cap Assortment Kit

Vacuum Cap - 105PCS
105PCS Vacuum Cap
BUSY-CORNER 105 Pieces Vacuum Cap Assortment Kit Cover
BUSY-CORNER 105 Pieces Vacuum Cap Assortment Kit, Dropper ID 3/8'' 5/16'' 1/4'' 7/32'' 5/32'' 3/16'', Hose Caps Kit for Car Carburetor Manifold

The BUSY-CORNER 105 Pieces Vacuum Cap Assortment Kit is made with high quality, durable and flexible nitrile rubber material that can withstand high temperatures. It includes 105 pieces of dropper vacuum caps in six different sizes, which can provide a tight fit to prevent vacuum leakage. These vacuum caps are widely used in carburetor, manifold, automotive, pipelines and hoses. The kit comes in a clear plastic case, making it easy to find the right size vacuum cap quickly. BUSY-CORNER STORE offers a full refund if you are unsatisfied with the product.

What We Like
Durable and flexible nitrile rubber material
105 pieces of dropper vacuum caps in six different sizes
Provides tight fit to prevent vacuum leakage
Comes in a clear plastic case for easy organization
Full refund offered for unsatisfied customers
#TOP 7

102 PCS Rubber Vacuum Caps Plug Kit for Automotive

Easily
102 caps
Black
102 PCS Rubber Vacuum Caps Plug Kit for Automotive Cover
Rubber Vacuum Caps Plug Kit, 102 PCS Assorted Vacuum Plugs Hose End Caps Assortment Kit for Carburetor, Manifold, Automotive 3/16'' 5/16" 7/32" 1/4" 5/32'' 3/8''

This Rubber Vacuum Caps Plug Kit comes with 102 pieces of vacuum plugs hose end caps in 6 different sizes, made of flexible and durable high-quality rubber material that is electric and corrosion resistant. The kit is practical and space-saving, and comes with a convenient plastic storage case. The vacuum caps provide a snug, airtight fit for your vacuum project, cover scratches or burrs, and protect against injury by pointed rod and tubing edges. This kit is widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, HVAC business, and sensitive sensors.

What We Like
Comes with 102 pieces of vacuum plugs hose end caps in 6 different sizes
Made of flexible and durable high-quality rubber material that is electric and corrosion resistant
Practical and space-saving, and comes with a convenient plastic storage case
Provides a snug, airtight fit for your vacuum project and protects against injury by pointed rod and tubing edges
Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, HVAC business, and sensitive sensors
#TOP 8

ISPINNER 100pcs Rubber Vacuum Caps Kit

VACUUM-CAP-100PCS
Black
ISPINNER 100pcs Rubber Vacuum Caps Kit Cover
ISPINNER 100pcs Rubber Vacuum Caps Assortment Kit, Hose End Caps for Carburetor, Manifold, Automotive 3/16" 5/32" 7/32" 1/4" 5/16" 3/8"

The ISPINNER Vacuum Caps Kit is designed for versatility and convenience. Made from high-quality rubber, these caps are durable and flexible, ensuring they withstand various applications without wear. You will appreciate the assortment of six different sizes, allowing you to find the perfect fit for your vacuum projects. Each cap provides a snug, airtight seal that prevents vacuum leaks, making them ideal for carburetors and automotive use. Plus, the included clear plastic case helps you quickly locate the right size, saving you time and hassle during your projects.

What We Like
High-quality rubber material
Assorted sizes included
Snug, airtight fit
Convenient storage case
Prevents vacuum leaks
#TOP 9

BUSY-CORNER Rubber Vacuum Cap Assortment

Vacuum Cap - 80PCS-Black
Black
80PCS Vacuum Cap
BUSY-CORNER Rubber Vacuum Cap Assortment Cover
BUSY-CORNER 80 Pieces Vacuum Cap Assortment, Rubber, Dropper ID from 5/32" to 3/8" Sizes, Hose Caps Kit for Carburetor, Manifold (Black)

The BUSY-CORNER Rubber Vacuum Cap Assortment is made of durable and high temperature resistant nitrile rubber. It includes 80 pieces of detailed sizes suitable for preventing vacuum leakage in carburetor, manifold, automotive, pipelines and hoses. The caps come in a clear plastic case that makes it easy to find the right size quickly, saving you time. BUSY-CORNER STORE offers a full refund if you are unhappy for any reason.

What We Like
Durable and high temperature resistant nitrile rubber
80 pieces of detailed sizes included
Clear plastic case for quick and easy finding of the right size
#TOP 10

Easily Rubber Vacuum Caps Plug Kit

Easily
63 caps
Black
Black
Easily Rubber Vacuum Caps Plug Kit Cover
Rubber Vacuum Caps Plug Kit, 63 PCS Assorted Vacuum Plugs Hose End Caps Assortment Kit for Carburetor, Manifold, Automotive 3/16'' 5/16" 7/32" 1/4" 5/32'' 3/8'' 1/8“

Easily Caps Plug Kit includes 63 pieces of high-quality rubber vacuum caps in 7 different sizes. The caps are flexible, durable, and resistant to various elements. They come in separate bags for easy organization and quick selection. These caps provide a snug fit, covering scratches and sharp edges, and prevent vacuum leakage in automotive applications. They are perfect for carburetors, manifolds, hoses, and coolant ports. The kit offers convenience, protection, and efficiency for your vacuum projects.

What We Like
Durable rubber material
Convenient organization in bags
Prevents vacuum leakage
Buying Guide Image
Editor's Notes

During our car carburetor cap research, we found 24 car carburetor cap products and shortlisted 10 quality products. We collected and analyzed 14,040 customer reviews through our big data system to write the car carburetor caps list. We found that most customers choose car carburetor caps with an average price of $12.56.

The car carburetor caps are available for purchase. We have researched hundreds of brands and picked the top brands of car carburetor caps, including Allstar Performance, Moroso, JEGS, BUSY-CORNER, Easily. The seller of top 1 product has received honest feedback from 4,345 consumers with an average rating of 4.6.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.