1974 Mercury Marquis Carburetor Power Valves

Your 1974 Mercury Marquis might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Carburetor Power Valves you desperately need.

We currently carry 5 Carburetor Power Valves to choose from for your 1974 Mercury Marquis, and our inventory prices range from as little as $12.99 up to $16.99.

On top of low prices, Advance Auto Parts offers 1 different trusted brands of Carburetor Power Valves for the 1974 Mercury Marquis. We only sell parts from trusted brands like Edelbrock so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 162 reviews on our Carburetor Power Valves for the 1974 Mercury Marquis from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Carburetor Power Valves stock in-person!

Carburetor Power Valves for Your 1974 Mercury Marquis

Edelbrock – Standard Flow Carburetor Power Valve #12625 Single Stage 2.5in Hg (Part No.12625)

Standard Flow Carburetor Power Valve #12625 Single Stage 2.5in Hg

from

$16.99
The Edelbrock #12625 Single Stage 2.5 Hg Power Valve operates by using engine vacuum to control the opening and closing rate. During heavy load or under full power situations, they open to supply additional fuel to the main system to eliminate hesitation

Product Features:
  • Gasket Or Seal Included
  • 2.5 in. Hg Opening Vacuum
  • Single Stage
  • Standard Flow Type
  • Made In The USA
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Edelbrock – Standard Flow Carburetor Power Valve #12665 Single Stage 6.5in Hg (Part No.12665)

Standard Flow Carburetor Power Valve #12665 Single Stage 6.5in Hg

from

$16.99
Product Features:
  • The Edelbrock #12665 Single Stage 6.5 Hg Power Valve operates by using engine vacuum to control the opening and closing rate.
  • During heavy load or under full power situations, they open to supply additional fuel to the main system to eliminate hesitation and bogging, ensuring the smooth delivery of power without any drivability concerns.
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Edelbrock – Standard Flow Carburetor Power Valve #12645 Single Stage 4.5in Hg (Part No.12645)

Standard Flow Carburetor Power Valve #12645 Single Stage 4.5in Hg

from

$16.99
Product Features:
  • The Edelbrock #12645 Single Stage 4.5 Hg Power Valve operates by using engine vacuum to control the opening and closing rate.
  • During heavy load or under full power situations, they open to supply additional fuel to the main system to eliminate hesitation and bogging, ensuring the smooth delivery of power without any drivability concerns.
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Edelbrock – Standard Flow Carburetor Power Valve #12655 Single Stage 5.5in Hg (Part No.12655)

Standard Flow Carburetor Power Valve #12655 Single Stage 5.5in Hg

from

$16.99
Product Features:
  • The Edelbrock #12645 Single Stage 5.5 Hg Power Valve operates by using engine vacuum to control the opening and closing rate.
  • During heavy load or under full power situations, they open to supply additional fuel to the main system to eliminate hesitation and bogging, ensuring the smooth delivery of power without any drivability concerns.
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Edelbrock – Carb Power Valve Block-Off Plug #12624 For Demon, Holley, & Quick Fuel Carbs (Part No.12624)

Carb Power Valve Block-Off Plug #12624 For Demon, Holley, & Quick Fuel Carbs

from

$12.99
The Edelbrock 94 Carburetor power valve block off #12624 is a great way to fine tune your vintage series carburetor. These Edelbrock Power valve Block Off’s will fit Edelbrock Vintage Series 94 carburetors as well as original Holley 94’s and its later var

Product Features:
  • Fits Any Demon®, Holley®, And Quick Fuel® Carburetors
  • Includes Gasket
  • 1/2 in. x 28 Power Valve Thread
  • For Applications That Prefer To Run Carbs Without The Power Valves
  • Made In The USA
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FAQs for 1974 Mercury Marquis Carburetor Power Valves

What are the most popular Carburetor Power Valves for the 1974 Mercury Marquis?

With 1 brands you can trust, our most popular Carburetor Power Valves for the 1974 Mercury Marquis parts are:
Standard Flow Carburetor Power Valve #12665 Single Stage 6.5in Hg
from $16.99
This product is not rated
Standard Flow Carburetor Power Valve #12665 Single Stage 6.5in Hg
Carburetor Power Valves
Standard Flow Carburetor Power Valve #12645 Single Stage 4.5in Hg
from $16.99
This product is not rated
Standard Flow Carburetor Power Valve #12645 Single Stage 4.5in Hg
Carburetor Power Valves
Standard Flow Carburetor Power Valve #12655 Single Stage 5.5in Hg
from $16.99
This product is not rated
Standard Flow Carburetor Power Valve #12655 Single Stage 5.5in Hg
Carburetor Power Valves