Quadrajet Rochester 7.4 Merc/Crusader


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Buy direct and save !!!!

You are buying real rochester carburetor not chinese clones.

When you send the old one back you will receive 50.00 core credit

If you don’t find your oem number or application email us and we will help you !

*note* if you have an omc please specify !!

Our carburetor will interchange & apply to the following oem carburetor models:
7027080, 7027083, 7028282, 7029280, 7040283, 7041280, 7044283, 7044286, 7044287, 7044289, 7045283, 17057287, 17057299, 17059285, 17059287, 17059290, 17059294, 17080560, 17080560, 17086117


  • 330 mcm 1977 – 78

Part Numbers:
 347-6493a1 / 1347-8291a3

330 mcm 1977  -81

 Part Numbers:
 1347-7363a1 / 1347-8291a3

This is a Four Barrel Rochester 4MV Marine version with remote/divorced choke made for the Merc, Crusader 7.4/454 ci motor

We have installed new internal parts such as:

Needle and seat,acel pump,float,springs,gaskets, and also the middle body casting is epoxied to avoid fuel leak down to the manifold,the throttle shaft bushings have been replace with brass one’s and the base is resurfaced.linkages and hardware are zinc plated and the body is painted black to avoid rust.
Every carburetor is bench tested and adjusted before being shipped.

We have carburetors for all makes and engine sizes,please email or call us if you have any questions.



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