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Carburetor Reference Sheet and Related Parts

Brand: Rochester Type:  R4-M4MC
Quadrajet Qjet
Number: 17056274
CU: 4-457

General Reference Picture of a R4-M4MC
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Actual Reference Picture
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Disc: 75-76 BOP 350/400/455 Notes: Notes
Cyl:220.10
Rebuild Kit:  KT-5382C

Check here for Muscle car Info

Float:  FLT-100-17 Acc Pump: 
Choke Pulloff Front:  PO-5080LC Acc Pump Cup: 
Choke Pulloff Rear:  PO-5216 Needle & Seat:  N/S-31-542
Choke Thermostat: EC-8008 PowerValve: 
    Jets:  Jets    
Mixture Control Solinoid:  Mettering Rods:   
Throttle Position Sensor:  Linkage Rods: R109R139
       
Fuel Fitting:
FuelFilter: 
5080L Mixture Screw: 
       
Air Cleaner Gasket: 

Rebuilt Carburetor Numbers

Bowl Gasket:  Rebuild Number: 4-457
Middle Gasket:  New Carb: 64-7296
Base Gasket:  20-2662G839 Core:  Search eBay

Check the Rochester Parts Page for more parts
We have many parts that may not be listed Call 253-833-4106

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This carburetor was made by Rochester , The Rochester Products Division of General Motors was located in Rochester New York and built carburetors for GM vehicles since 1949 . It is a R4-M4MC the M4MC is a Hot air side mounted choke Rochester Quadrajet 4 barrel carburetor, which means the choke is located on the passenger side connected to the carburetor and draws hot air from the intake .They started making them in 1975 and ran threw 1990. Most will have 1 inch 20 Fuel inlet . 1975 and up quadrajets use a different metering rod . This carburetor has a part number of  17056274 and used on 75-76 BOP 350/400/455 . Check here for specific Muscle car Info
Referenced by ; Rochester  17056274

 

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