A carburetor cap is a small but crucial component for your vehicle's fuel system. Ensuring a proper seal prevents fuel evaporation and contaminants from entering the carburetor, which is vital for optimal engine performance and fuel efficiency. Choosing the right replacement cap means maintaining your car's health and reliability.
Looking for the best Automotive Replacement Carburetor Caps?
Discover now our comparison of the best Automotive Replacement Carburetor Caps. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Carburetor Caps are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Carburetor Caps in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
110 PCS Vacuum Caps Assortment, Vacuum Plugs Hose End Cap, Rubber Vacuum Caps Kit for Carburetor, Manifold...
- Multi Size - Rubber Vacuum Caps Plus Kit With 9 Different Size:1/8''(20pcs), 5/32''(20pcs), 3/16''(20pcs), 7/32''(20pcs), 1/4''(10pcs), 5/16''(6pcs), 3/8''(6pcs), 1/2''(6pcs), 5/8''(2pcs), Which Can Meet Different Needs.
- Material - Vacuum Caps are Made of High Quality Rubber, Soft, Durable, Flexible and Insulated, Corrosion Resistance, High Temperature Resistance.
- Packing - 110PCS Vacuum Caps Rubber Plug Kit Comes With a Plastic Storage Case.You are Easy to Find Different Sizes Vacuum Caps to Use.
- Wide Features - Rubber Vacuum Caps Can Provide a Tight Fit to Prevent Vacuum Leakage. Widely Used in Carburetor, Manifold, Automotive, Pipelines and Hoses etc.
- Refund Guarantee - We are confident that you will have a great experience with Busy-Corner Rubber Caps Assortment. Customer Satisfaction is our TOP priority. if you have any problem, please feel free to contact us.
No. 2
Rubber Vacuum Caps Plug Kit, 102 PCS Assorted Vacuum Plugs Hose End Caps Assortment Kit for Carburetor...
- Come with 6 SIZE & 102 QUANTITY: 3/8" ID(1" Length): 6PCS, 5/16" ID(7/8" Length): 10PCS, 1/4" ID(1-1/4" Length): 11PCS, 7/32" ID(47/64" Length): 25PCS, 5/32" ID(39/64" Length): 25PCS, 3/16" ID(11/16" Length): 25PCS
- Made of Flexible and Durable High Quality Rubber Material: They have good electric resistance capability, Corrosion resistance, high temperature resistance, UV resistant, more durable and tear-resistant, THICK and solid
- 【Practical and Space Saving】Comes with a convenient plastic storage case. It's easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size
- Good assortment of caps worked for your application: Provide a snug, airtight fit for your vacuum project. Used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against injury by...
- WIDE AUTOMOTIVE APPLICATION: Provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, hvac business, emmisions port on a carburetor, sensitive sensors from debris during...
No. 3
Rubber Vacuum Caps Plug Kit, 63 PCS Assorted Vacuum Plugs Hose End Caps Assortment Kit for Carburetor...
- Come with 7 SIZE & 63 QUANTITY: Rubber assortment kit including 63 PCS 7 sizes 3/16'' 5/16" 7/32" 1/4" 5/32'' 3/8'' 1/8“
- Made of Flexible and Durable High Quality Rubber Material: They have good electric resistance capability, Corrosion resistance, high temperature resistance, UV resistant, more durable and tear-resistant, THICK and solid
- Practical and Space Saving: 7 popoular sizes separately in transparent bags. It's easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size
- Good assortment of caps worked for your application: Provide a snug, airtight fit for your vacuum project. Used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against injury by...
- WIDE AUTOMOTIVE APPLICATION: Provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, hvac business, emmisions port on a carburetor, sensitive sensors from debris during...
No. 4
ISPINNER 60pcs Rubber Vacuum Caps Assortment Kit, Hose End Caps for Carburetor, Manifold, Automotive...
- ✅【HIGH QUALITY】These vacuum caps are made of high quality rubber, soft, durable, flexible and insulated, which have higher strength, service life and anti-corrosion capabilities.
- ✅【SIZE & QUANTITY】This black end caps assortment kit have 6 different sizes for you to choose, including 5/32"(15pcs), 3/16"(15pcs), 7/32"(15pcs), 1/4"(6pcs), 5/16"(6pcs) and 3/8"(3pcs).
- ✅【PERFECT FIT】Right size vacuum caps can provide a snug, airtight fit for your vacuum project. Also can be used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against...
- ✅【CONVENIENT PACKING】Comes with a convenient plastic case. Clear plastic case makes it easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size caps.
- ✅【WIDE APPLICATION】These rubber vacuum caps can provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, automotive, pipelines and hoses etc.
No. 5
ISPINNER 100pcs Rubber Vacuum Caps Assortment Kit, Hose End Caps for Carburetor, Manifold, Automotive...
- ✅【HIGH QUALITY】These vacuum caps are made of high quality rubber, soft, durable, flexible and insulated, which have higher strength, service life and anti-corrosion capabilities.
- ✅【SIZE & QUANTITY】This black end caps assortment kit have 6 different sizes for you to choose, including 3/16''(25pcs), 5/32"(25pcs), 7/32"(25pcs), 1/4"(10pcs), 5/16''(10pcs) and 3/8''(5pcs).
- ✅【PERFECT FIT】Right size vacuum caps can provide a snug, airtight fit for your vacuum project. Also can be used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against...
- ✅【CONVENIENT PACKING】Comes with a convenient plastic case. Clear plastic case makes it easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size caps.
- ✅【WIDE APPLICATION】These rubber vacuum caps can provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, automotive, pipelines and hoses etc.
No. 6
BUSY-CORNER 80 Pieces Vacuum Cap Assortment, Rubber, Dropper ID from 5/32" to 3/8" Sizes, Hose Caps Kit for...
- HIGH QUALITY: Made of durable flexible nitrile rubber, are durable, high temperature resistance
- DETAILED SIZE: ID 3/8'' (9.52mm) * IL 1'' (25.4mm) = 5pcs dropper vacuum cap, ID 5/16'' (7.93mm) * IL 7/8'' (22.22mm) = 5pcs dropper vacuum cap, ID 1/4'' (6.35mm) * IL 1-1/4'' (31.75mm) = 10pcs dropper vacuum cap, ID 7/32'' (5.55mm) * IL 47/64'' (18.65mm...
- WIDE FEATURES: Rubber vacuum caps can provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, automotive, pipelines and hoses etc
- HANDY PACKING: Total 6 Sizes 80pcs rubber vacuum cap kit packed in a clear plastic case, makes it easy to find correct item quickly, saves your time of running around looking for a particular size vacuum caps
- Customer Service: BUSY-CORNER always focuse on product quality and service. If you have any questions, please contact us
No. 7
BUSY-CORNER 105 Pieces Vacuum Cap Assortment Kit, Dropper ID 3/8'' 5/16'' 1/4'' 7/32'' 5/32'' 3/16'', Hose...
- HIGH QUALITY: Made of durable flexible nitrile rubber, are durable, high temperature resistance
- DETAILED SIZE: ID 3/8'' (9.52mm) * IL 1'' (25.4mm) = 5pcs dropper vacuum cap, ID 5/16'' (7.93mm) * IL 7/8'' (22.22mm) = 10pcs dropper vacuum cap, ID 1/4'' (6.35mm) * IL 1-1/4'' (31.75mm) = 15pcs dropper vacuum cap, ID 7/32'' (5.55mm) * IL...
- WIDE FEATURES: Rubber vacuum caps can provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, automotive, pipelines and hoses etc
- HANDY PACKING: Total 6 Sizes 105pcs rubber vacuum cap kit packed in a clear plastic case, makes it easy to find correct item quickly, saves your time of running around looking for a particular size vacuum caps
- CUSTOMER SERVICE: BUSY-CORNER always focuse on product quality and service. If you have any questions, please contact us
SaleNo. 8
143 Pcs Rubber Vacuum Caps Assortment, 15 Sizes Rubber Caps, Hose End Caps for Carburetor, Manifold...
- Come with 15 SIZE & 143 QUANTITY: Rubber Vacuum Caps Assortment, 15 Sizes Rubber Caps, Hose End Caps for Carburetor, Manifold, Automotive 1/8" 1/4" 5/32" 3/16" 5/16" 7/32" 3/8" 1/2" 5/8"
- WIDE AUTOMOTIVE APPLICATION: Provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, hvac business, emmisions port on a carburetor, sensitive sensors from debris during...
- Made of Flexible and Durable High Quality Rubber Material: They have good electric resistance capability, Corrosion resistance, high temperature resistance, UV resistant, more durable and tear-resistant, THICK and solid
- Practical and Space Saving: Comes with a convenient plastic storage case. It's easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size
- Good assortment of caps worked for your application: Provide a snug, airtight fit for your vacuum project. Used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against injury by...
No. 9
118 Pcs Vacuum Caps Assortment, 10 Sizes Rubber Vacuum Caps Kit,Vacuum Plugs Hose End Cap, for Carburetor...
- Come with 10 SIZE & 118 QUANTITY: Rubber Vacuum Caps Assortment, 10 Sizes Rubber Caps, Hose End Caps for Carburetor, Manifold, Automotive 3/16'' 5/16'' 7/32'' 1/4'' 5/32'' 3/8'' 1/8'' 1/2'' 5/8''
- WIDE AUTOMOTIVE APPLICATION: Provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, hvac business, emmisions port on a carburetor, sensitive sensors from debris during...
- Made of Flexible and Durable High Quality Rubber Material: They have good electric resistance capability, Corrosion resistance, high temperature resistance, UV resistant, more durable and tear-resistant, THICK and solid
- Practical and Space Saving: Comes with a convenient plastic storage case. It's easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size
- Good assortment of caps worked for your application: Provide a snug, airtight fit for your vacuum project. Used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against injury by...
No. 10
Vacuum Caps Rubber Plug Kit - 202 PCS 8 Size Assorted Vacuum Plugs Hose End Caps Assortment Kit for...
- WIDE AUTOMOTIVE APPLICATION: Provide a tight fit to prevent vacuum leakage. Widely used in carburetor, manifold, pipelines, hoses, coolant and vacuum ports, hvac business, emmisions port on a carburetor, sensitive sensors from debris during...
- Made of Flexible and Durable High Quality Rubber Material: They have good electric resistance capability, Corrosion resistance, high temperature resistance, UV resistant, more durable and tear-resistant, THICK and solid
- Practical and Space Saving: Comes with a convenient plastic storage case. It's easy to find correct vacuum caps quickly, saves your time of running around looking for a particular size
- Good assortment of caps worked for your application: Provide a snug, airtight fit for your vacuum project. Used as an ordinary end cap, which can cover any scratches or burrs that may occur during the cutting process, provide protection against injury by...
- Come with 8 SIZE & 202 QUANTITY: 5/16" ID(1-1/4" Length): 18PCS, 3/8" ID(1" Length): 12PCS, 7/32" ID(47/64" Length): 24PCS, 5/32" ID(39/64" Length): 35PCS, 1/4" ID(1-1/4" Length): 25PCS, 5/16" ID(7/8" Length): 18PCS, 3/16" ID(11/16" Length): 35PCS...
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Last update on 2026-04-19 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Carburetor Caps
Installation Tips
Replacing a carburetor cap is generally a straightforward process that requires no special tools. Simply unscrew the old cap and screw on the new one until it clicks or feels snug, depending on the design. If your cap has a tether, ensure it is securely attached. A proper seal is indicated by an audible click or the cap feeling firmly in place.Frequently Asked Questions
What happens if my carburetor cap is missing or damaged?
A missing or damaged carburetor cap can lead to fuel evaporation, reduced fuel efficiency, and allow contaminants like dirt and moisture to enter the fuel tank. This can negatively impact engine performance and potentially cause damage over time.
How do I know if I need a new carburetor cap?
Signs that you need a new cap include a loose fit, a damaged tether, visible cracks or wear, or if your 'check engine' light illuminates with a code related to the evaporative emission system (EVAP).
Are all carburetor caps universal?
No, carburetor caps are not universal. They are designed for specific threading, size, and venting requirements of different vehicle makes and models. Using the wrong cap can result in a poor seal or system malfunction.
Can I use a cap from a different vehicle?
It is not recommended to use a cap from a different vehicle unless you have confirmed it is an exact match for your car's specifications. Even slight differences in threading or seal design can cause issues.
How often should I replace my carburetor cap?
Carburetor caps are designed for durability and typically do not require regular replacement unless they become damaged or show signs of wear. Inspect it periodically during refueling for any signs of damage.