Availability
Showing In Stock Items. Show All 32 Items.
Edelbrock vacuum caps provide a way to seal vacuum line connections on your intake manifold, carburetor, or wherever you need. The rubber sets contain a variety of sizes for versatile uses.
( 9 )
$14.95
Dorman vacuum caps are available in a variety of sizes, colors, and materials. These caps are designed to block off unused vacuum ports and lines, helping to avoid leaks and inadequate engine performance.
( 23 )
$2.99
—
$8.99
Summit Racing™ vacuum secondary diaphragms are made from high quality rubber and are perfect for replacing old, worn -out diaphragms. They're available from most Holley carburetors with vacuum secondaries.
( 7 )
$8.99
These convenient cap kits from Summit Racing™ provide a quick, sure way to seal vacuum line connections at carburetors, manifolds, etc., when vacuum lines have been removed. They consist of color-coded soft plastic caps.
( 11 )
$10.99
Cap off your vacuum ports and connections with Milodon vacuum line caps. They are a simple way to temporarily or permanently cap off connections and ports with the lines removed. Each kit contains several cap sizes.
( 5 )
$9.95
Quick Fuel vacuum passage seals create a leak-free connection between the vacuum secondary housing and carburetor main body. These small, but important gaskets are made from cork material. Rebuild and service your carburetors with the help of Quick Fuel.
( 4 )
$2.74
URO Parts vacuum check valves comply with all applicable emissions requirements. Precision-engineered to withstand the stress today's deteriorating traffic conditions place on engines, these check valves are manufactured from high-quality materials to survive high underhood temperatures, constant vibration, and repeated vacuum cycles. URO Parts vacuum check valves fit, perform, and last like OE parts—without the high prices. Order the vacuum check valve that's suited to fit your application.
Not Yet Reviewed
$5.99
Seal vacuum line connections with these cap kits from Trans-Dapt. Each set includes several sizes and colors of plastic caps.
( 2 )
$8.99
Close your vacuum ports with Quick Fuel vacuum caps. They're made from rubber and come available in two sizes and quantities. Quick Fuel also offers brass cup plugs to block off vacuum or air through your throttle body. Stop air and vacuum with Quick Fuel vacuum caps.
( 1 )
$6.95
Dorman manufactures a comprehensive selection of vacuum and emissions fittings for almost any automotive vacuum application. They also offer vacuum tubing, sold separately. Dorman vacuum tubing connectors are available in a wide variety of shapes, including straight, T-shaped, Y-shaped, F-shaped, and L-shaped. Constructed from durable hard plastic or soft, heat-resistant PVC vinyl for a long service life, depending on the application, they are offered in either black or white.
( 9 )
$3.99
Pico vacuum caps are available in a variety of sizes, colors, and materials. These caps are designed to block off unused vacuum ports and lines, helping to avoid leaks and inadequate engine performance. Order the kit that best fits your application.
( 2 )
$1.99
—
$10.99
Clearance
Engine Works vacuum secondary diaphragms are made from a high performance rubber material and are ideal for replacing your existing worn-out diaphragms. As such, the secondaries open progressively as the engine requires more air and fuel to keep up with the throttle demand. As the secondary throttle blades open and air starts flowing, an additional vacuum signal is generated to the diaphragm to keep the secondaries open as needed. These Engine Works carburetor vacuum secondary diaphragms are compatible with most Holley carburetor models with vacuum secondaries.
Not Yet Reviewed
$12.46
$3.50
Tanks Inc. hose barb fuel vent caps are made from durable, fuel-proof Viton® rubber. They effectively seal fuel vent lines or vacuum ports, preventing fuel tank contamination from dirt, water, and debris. Select the quantity needed.
Not Yet Reviewed
$6.99
Sierra Marine plug-off caps are made from durable, high-quality rubber. They're perfect for blocking off vacuum lines or hoses to perform engine diagnostic tests. The caps are available in different sizes so you can use them for a variety of applications in your engine bay.
( 1 )
$10.99
Twin Power CV carburetor vacuum piston diaphragms are ideal replacements for the stock Keihin CV carburetor diaphragms, and may fit other applications as well. Don't let punctured or torn seals on your throttle slide vacuum valves deter you from riding. Order Twin Power Keihin CV carburetor vacuum piston diaphragms to help eliminate those pesky intake leaks on your V-Twin.
Not Yet Reviewed
$7.71
Clearance
These Spectre modular air intake system adapters will allow you to custom-build your own air intake to fit your vehicle. They are made of durable polymer and are triple chrome plated for an attractive look. The adapters include the mounting crimp collar and are available in different angles and lengths.
( 1 )
$11.99
$9.50
Summit Racing™ offers 4-window power valves for a wide range of Holley and Quick Fuel carburetor applications. These single-stage, high-flow replacements are available in a variety of primary stage opening vacuum points, from 2.5 in. Hg to 10.5 in. Hg. Gaskets are included with each valve. Dial in your power valve opening point with economical units from Summit Racing™.
( 3 )
$8.99
Are you using an Edelbrock Performer or Thunder series AVS carburetor? Then you need these Edelbrock metering jets! The jet and rod is changed to get the cruise air/ fuel ratio leaned out. The step in the rod changes the effective jet area between high and low manifold vacuum conditions. The brass metering jets are designed for use with Edelbrock Performer series and Thunder series AVS carburetors only. Do not use them with any other brands.
( 68 )
$14.95
—
$15.95
Summit Racing™ power valves are an important component to a well tuned carburetor. They're available in multiple vacuum ranges to control the power enrichment circuit of your carburetor for proper driveability and performance.
( 27 )
$6.99
Since proper power valve selection is crucial to carburetor tuning, AED offers these high-quality power valves specifically designed for your Holley performance carburetor. All AED power valves are high-flow units with several vacuum ratings to give you the ultimate in tuning capability. AED also offers alcohol power valves for the special fuel demands of alcohol carburetors.
( 13 )
$9.99
—
$11.99
On Sale
Aeromotive fuel pressure regulator breathers make ideal replacements (where required) for the vacuum/boost ports found on all Aeromotive bypass regulators. They're machined from quality materials and feature male threads. A sintered brass filter allows air to move into and out of the regulator cap as needed while preventing dirt and debris from entering. Aeromotive fuel pressure regulator breathers work perfectly for any application that does not require fuel pressure to be influenced by manifold pressure.
( 3 )
$9.85
$8.86
Outerwears prefilters clothe your air filter with an outerwear of protection against sand, dirt, and debris that could clog or pass through your unprotected air filter. And that could mean loss of horsepower, or worse--engine damage! Outerwears prefilters are stitched from a puncture-resistant polyester mesh with uniform micron openings to trap the smallest of particles without sacrificing airflow, and their dielectric-sealed seams are guaranteed not to separate. Prefilters are available in water-repellent styles, too. Choose the protection that you need for everything from your daily driver to your race car to the shop vac that keeps your garage clean. Outerwears prefilters preserve the life and enhance the performance of your air filter.
( 89 )
$9.45
—
$10.45
On Sale
Summit Bucks
Boost Products USA silicone couplers are reinforced with textile layers to be extreme pressure resistant, and also to vacuum in your Air Charge System. The hose tubing couplers are suitable for your intercooler system, intake system, water lines or similar, as they can withstand up to 5 Bar and temperatures up to 220 degrees C (not to be used as fuel or oil line). Boost Products silicone hoses have achieved, and many times even exceeded the quality of silicone hoses, compared to ones made by other well-known manufacturers in quality tests. The silicone is durable and flexible, stable, and color-proof for many years. As a matter of fact, lots of well-known companies in the tuning and motorsport areas have come to rely on these quality hose silicone couplers by Boost Products.
( 3 )
$1.99
—
$12.54
$1.79
—
$11.29
Engine Works Power Valves offer an increased working area of the diaphragm for a quicker response. These high-flow valves are available in different opening vacuums in 2- or 4-window designs. Choose the one needed for your setup.
Not Yet Reviewed
$7.46
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
