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Holley vacuum secondary diaphragms will replace your existing worn-out diaphragms. They are made from a high performance rubber material and will fit most Holley carburetors with vacuum secondaries.
( 49 )
$63.59
$57.25
On Sale
These Summit Racing™ vacuum secondary upgrade Pro Packs can help you modify your carburetor's initial operating and full end rpm. They include an assortment of vacuum secondary springs, so you can choose which is best for your engine combination. They also include a quick-change housing and cover that allow you to make fast changes in no time at all. Optimize your engine rpm and tune-in your carburetor with one of these Summit Racing™ vacuum secondary upgrade Pro Packs.
( 20 )
$61.92
$55.73
On Sale
Holley offers vacuum secondary carburetor accessories that can be used as replacements or for use in upgrading your present carburetor. From diaphragms to spring kits, covers to quick-change kits and more, Holley has the part accessories you need to keep your carburetor at peak performance.
( 35 )
$99.95
Quick Fuel offers these replacement carburetor vacuum secondary diaphragms to get your carburetor working like it should. The diaphragm on a vacuum-operated secondary carburetor needs to be in good shape and free of leaks, or else it may not open at the right time, or at all, causing a serious loss in power. These Quick Fuel carburetor vacuum secondary diaphragms are perfect replacements for your old, worn-out diaphragms that could be robbing you of potential power and performance.
( 2 )
$53.29
Mikuni is the undisputed leader in fuel disbursement technology, and their vacuum fuel pumps are the popular choice when replacement fuel pumps are needed. In addition, Mikuni offers different styles, sizes, flow rates, and other options to suit your specific applications. When you have to replace a fuel pump, or if you're looking to upgrade your OEM pump, you can entrust Mikuni vacuum fuel pumps to fulfill all of your requirements.
( 10 )
$54.99
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$77.99
Nitrous Express vacuum sensors are for data-logging oil pan vacuum with your Maximizer 5 nitrous controller. Expand the use of your Max 5 with these valuable components.
Not Yet Reviewed
$76.43
Clearance
Dorman EGR vacuum switching valves are designed to inhibit EGR operation during conditions where it could adversely affect engine performance and vehicle drivability. They can be either normally open or closed and installed in series between the vacuum modulator and EGR valve, or installed on a second port on the EGR valve. Dorman EGR vacuum switching valves control an atmospheric bleed, which inhibits EGR operation any time a given set of ECM parameters is met.
( 2 )
$51.95
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$100.99
When it's time to replace the vacuum switching valve on your EVAP system, Dorman vacuum solenoid valves are engineered to be better than the original design. The durable metal and plastic construction is designed for long-lasting resistance to harsh road and weather conditions.
( 1 )
$76.95
These Proform performance carburetor rebuild kits include machined needle and seat assemblies, accelerator pump diaphragms, and precision non-stick die-cut gaskets with nylon inlet nut and bowl screw gaskets. They can be used with any racing gasoline, so they make an excellent choice for your street rod, race car, and even daily driver. Bring new life back to your carburetor with one of these Proform performance carburetor rebuild kits.
( 51 )
$59.99
Moroso fuel pump block-off plates are designed to block-off the fuel pump mounting boss when a mechanical fuel pump is not being used. These plates are made of anodized blue aluminum or high-luster triple chrome plated steel.
( 60 )
$60.99
On Sale
Holley fuel pressure regulators are designed to provide the correct fuel pressure for any high performance vehicle. They're available in a variety of configurations and pressure ranges for both universal and vehicle-specific applications.
( 314 )
$73.29
Upgrade your carburetor with Proform secondary metering block conversions. They take the place of the carburetor's original metering plate. The block is made of billet aluminum and anodized for good looks and a long life.
( 2 )
$99.95
On Sale
When it's time to rebuild your Demon carburetor, you'll need one of these Demon Carburetion carburetor rebuild kits. They include every possible gasket and seal you'll need, along with many parts not included in other kits, like detailed instructions and a power valve. Some kits include standard gaskets for fuel bowl, metering block, and bowl screws.
( 154 )
$59.95
Dorman vapor canister purge solenoids control the flow of vapors from the EVAP system to the intake manifold. Normally open, they are pulse-modulated by the control module to precisely control the flow of fuel vapor to the engine. The solenoids can also be opened during some portions of the EVAP testing, allowing engine vacuum to enter the EVAP system. These replacements are designed for a variety of specific vehicle applications.
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$71.99
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$87.95
AED billet carburetor base plates are CNC-machined from 6061 alloy to strict tolerances for an exact fit and then anodized for durability and good looks. These carburetor base plates are available with or without vacuum ports, offering added performance. These billet carburetor components are a must for severe duty and come with the AED advantage--quality and price!
( 1 )
$94.99
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$99.99
If your check engine light is on, you may have a leak detection pump failure. These Dorman evaporative leak detection pumps are designed to build pressure in your EVAP control system when the computer performs a self-diagnostic leak check. Dorman leak detection pumps are made to meet or exceed OE standards for quality and function and are the ideal replacements for your faulty pump.
( 6 )
$55.95
Standard Motor Products EGR valve control solenoids are just what you need to replace your worn-out factory units. They are made to meet or exceed OEM specifications and are available for a variety of applications.
( 5 )
$57.99
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$102.99
Sierra Marine offers mechanical fuel pumps for a variety of watercraft applications. These high-quality replacement parts are designed to meet OEM specifications. They're available in different inlet/outlet sizes and attachments, and most models include a gasket. Order the fuel pump recommended for your engine.
( 28 )
$76.99
Summit Racing™ 50MM blow-off valves are a pressure release system that takes the load off your turbocharger when the throttle is suddenly closed, preventing damage to both the turbo and your engine. These valves are adjustable from 0 to 50 psi, making them ideal for most boosted applications. Machined from aluminum and black anodized for durability, these blow-off valves offer a quality look for any turbo setup. They include vacuum fittings, aluminum weld flange, V-band assembly, and springs.
( 15 )
$69.99
Summit Bucks
To keep your vehicle running in tip-top form, ACDelco throttle body repair kits help solve the problem of low vacuum. It's the easiest fuel component you'll ever rebuild. Spruce up the throttle body with carb cleaner and dry it well; then use these kits to replace hardware, gaskets, and everything necessary to reseal your throttle body.
( 55 )
$55.99
The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a Radium Engineering fuel pulse damper (FPD) is often necessary. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and often help idle surge, especially with high-flow injectors. A fuel pulse damper can also solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling," that are difficult to tune out. What makes Radium FPDs unique?: Along with having the flexibilty of using common fittings, Radium Engineering FPD's use a vacuum/boost reference port which allows for proper fuel pulse damper performance even at elevated fuel pressures. This becomes essential for boosted systems that use a 1:1 rising rate fuel pressure regulator. Features: The anodized aluminum housing features two selectable threaded male fittings. The 8 AN ORB version seals using a FKM O-ring, while the 3/8 in. NPT variation seals with the tapered pipe threads. * The FPDs can be mounted at any possible angle including upside down. For best results, the damper should be mounted directly onto the fuel rail(s). These products are safe for use with all fuel types, including alcohol blends such as E85. (Not recommended for the low-pressure side of mechanical fuel pumps.) Included: * Anodized and laser engraved aluminum top, R=range or XR=extra range * Anodized aluminum body with male threads, 8 AN ORB or 3/8 in. NPT * Stainless steel hardware * Rubber vacuum hose, 4mm I.D. * Vacuum hose Y-fitting
Not Yet Reviewed
$85.45
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$94.95
Radium Engineering's Venturi jet pump kits are designed for high-flow aftermarket pumps and includes three different Venturi orifices to match a wide range of pump flow rates. The Radium jet pump is an effective device for drawing fuel from one side of a fuel tank to the other. Fuel flowing through the venturi creates vacuum in the perpendicular port. The Venturi jet pump uses a machined aluminum housing that is anodized, and laser engraved. Kit includes three interchangeable orifices that were precisely calculated, and vacuum pressure tested with multiple pump combinations. All hose barb connections are compatible with 5/16 in. or 3/8 in. ID hose. Also, the crossover siphon port can be easily adapted to common hoses as it uses 6AN ORB (9/16 in.-18 O-ring) female threads.
( 1 )
$85.45
Standard Motor fuel pressure regulators ensure that your vehicle's fuel supply is precisely metered for optimum mileage and performance. Defective fuel pressure regulators most often develop excessive pressures that create an overly rich air/fuel mixture, robbing mileage and performance. Similarly, if the pressure regulator diaphragm leaks through its vacuum hose into the engine intake manifold, the fuel mixture will also become extremely rich. Don't take chances with your fuel supply—rely on Standard Motor Products for your vehicle's fuel system needs. Order the replacement regulator designed for your application.
( 47 )
$50.99
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$108.99
Holley billet fuel pressure regulator brackets are designed to mount to the passenger side carb studs on your 4-barrel carburetor. The mounting location lends itself to easy plumbing of the inlet and outlet fittings, and shortens the distance to the float bowls for optimum fuel pressure control. These brackets are made to clear double pumper throttle linkage, electric and manual chokes, and other vacuum ports. They're made from billet aluminum for durability and longevity.
( 10 )
$64.35
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$70.39
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