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Carburetor Parts
by Carb Types
Rochester
4G, 4GC, 4 Jet 4 Barrel
Rochester 4G, 4GC, 4 jet, Main jet Custom Assortment
Rochester 4G, 4GC, 4 jet, Main jet Custom Assortment
Rochester 4G, 4GC, 4 jet, Main jet Custom Assortment
Your Price:
$55.00
Custom Assortment
Part Number:
120-11A
Availability:
Back Order
Choose Options
Jet Size 1
*
Jet Size 1
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 2
*
Jet Size 2
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 3
*
Jet Size 3
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 4
*
Jet Size 4
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 5
*
Jet Size 5
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 6
*
Jet Size 6
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 7
*
Jet Size 7
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
Jet Size 8
*
Jet Size 8
.048
.049
.050
.051
.052
.053
.054
.055
.056
.057
.058
.059
.060
.062
.064
.066
.068
.069
.070
.071
.072
.073
.074
.075
.076
.077
.078
.079
.080
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Quantity
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Description
Specifications
Price includes 8 pairs of jets (16 total).
Rochester 4 barrel main jets. Used on 4G & 4GC carburetors. Commonly known as the 4 Jet. There are two main primary jets and 2 main secondary jets in this carburetor.
To correctly determine what jet size you need in your carburetor test the current setup by driving at a sustained speed for 20 minutes, stop, pull a plug and check the color. Gray is perfect, white is too lean and black is too rich. Change your jets, then try the test again.
Thread size on this jet is 28
MAKE
YEAR
MODEL
CARB NUMBER
PRIMARY JET
SECONDARY JET
BUICK
1955
EARLY 50, 60, 70
7006200
BUICK
1955
LATE 50, 60, 70
7009100
BUICK
1956
50, 60, 70
7009200
BUICK
1956
M-50, 60, 70
7009900
BUICK
1957
EARLY 50, 60, 70
7010070
BUICK
1957
LATE 50, 60, 70
7011570
BUICK
1958
EARLY 50, 60 70
7011600
BUICK
1958
LATE 50, 60, 70
7013100
BUICK
1959
4600, 4 700, 4800
7013044
.086
.0635
BUICK
1960
4600, 4 700, 4800
7015040
.0935
.089
BUICK
1961
ELECTRA, INVICTA, LE SABRE
7019040
BUICK
1961-62
SPECIAL A/T
7020043
BUICK
1961-62
SPECIAL A/T
7020043
BUICK
1961-62
SPECIAL S/T
7020045
BUICK
1961-62
SPECIAL S/T
7020045
BUICK
1961-63
215
7020043
BUICK
1961-63
215
7020043
BUICK
1961-63
215
7020045
BUICK
1961-63
215
7020045
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020040
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020041
BUICK
1963
EARLY 8 STD
7023040
BUICK
1963
EARLY 8 STD
7023040
BUICK
1963
8 SPL A/T
7023044
BUICK
1963
8 SPL S/T
7023045
BUICK
1963
LATE 8 STD
7023143
BUICK
1963
LATE 8 STD
7023143
BUICK
1963-65
EARLY 8 STD
7023040
BUICK
1963-65
EARLY 8 STD
7023040
BUICK
1963-65
LATE 8 STD
7023143
BUICK
1963-65
LATE 8 STD
7023143
BUICK
1964
8 WILDCAT & ELECTRA
7024040
BUICK
1964
8 SPL & LE SABRE A/T
7024044
BUICK
1964
8 SPL & LE SABRE S/T
7024045
BUICK
1965
EARLY 401?Ÿ?›€???
7025040
BUICK
1965
425?Ÿ?›€???
7025042
BUICK
1965
LATE 401?Ÿ?›€???
7025140
BUICK
1966
340?Ÿ?›€??? A.I.R. A/T
7026040
CADILLAC
1952
7004500
.052
.063
CADILLAC
1953
H/M
7005100
.049
.060
CADILLAC
1953
D/F
7006215
CADILLAC
1953
D/F
7006215
.049
.060
CADILLAC
1954
EARLY
7006220
.048
.063
CADILLAC
1954
AIR EARLY
7006221
.048
.063
CADILLAC
1954
LATE
7006962
CADILLAC
1954
AIR LATE
7006963
CADILLAC
1954-55
7007242
CADILLAC
1955
ELDORADO FRONT
7007240
CADILLAC
1955
ELDORADO REAR
7007241
CADILLAC
1955
ELDORADO REAR
7007942
.049
.064
CADILLAC
1955
EARLY
7007970
.049
.073
CADILLAC
1955
AIR EARLY
7007971
.049
.073
CADILLAC
1955
LATE
7009070
.049
.073
CADILLAC
1955
AIR LATE
7009071
.049
.073
CADILLAC
1956
EARLY
7008750
.051
.068
CADILLAC
1956
AIR EARLY
7008751
.051
.068
CADILLAC
1956
LATE
7009750
.051
.068
CADILLAC
1956
AIR LATE
7009751
.051
.068
CADILLAC
1957
EARLY
7010100
.056
.084
CADILLAC
1957
AIR EARLY
7010101
CADILLAC
1957
AIR EARLY
7012001
.056
.084
CADILLAC
1957
AIR EARLY
7012001
CADILLAC
1957-1966
ALL
7012000
CADILLAC
1957-1966
ALL
7012000
CADILLAC
1957-66
ALL
7012000
CADILLAC
1957-66
ALL
7012000
CADILLAC
1957-66
ALL
7012001
CADILLAC
1957-66
ALL
7012001
.056
.084
CADILLAC
1957-66
ALL
7012010
CADILLAC
1957-66
ALL
7012010
.059
.082
CADILLAC
1957-66
ALL
7012010
.059
.082
CADILLAC
1957-66
ALL
7012011
CADILLAC
1957-66
ALL
7012011
.059
.082
CADILLAC
1958
EARLY
7012010
.059
.082
CADILLAC
1958
EARLY
7012010
CADILLAC
1958
EARLY
7012010
.059
.082
CADILLAC
1958
AIR EARLY
7012011
CADILLAC
1958
AIR EARLY
7012011
.059
.082
CADILLAC
1958
AIR LATE
7012811
.059
.082
CADILLAC
1958
LATE
7012910
.059
.082
CADILLAC
1959-60
7013030
.058
.084
CADILLAC
1959-60
7013031
.058
.084
CADILLAC
1961-62
7019030
.058
.078
CADILLAC
1961-62
7019031
.058
.078
CADILLAC
1963
D/F
7006215
.049
.060
CADILLAC
1963
D/F
7006215
CADILLAC
1963
7023030
.056
.075
CADILLAC
1963
7023031
.056
.075
CADILLAC
1964
7024030
.055
.085
CADILLAC
1964
7024031
.055
.085
CADILLAC
1965
7025030
.054
.083
CADILLAC
1965
W/AC
7025031
.054
.083
CADILLAC
1966
7026030
.056
.085
CADILLAC
1966
W/AC
7026031
.056
.085
CHECKER
327?Ÿ?›€???
7025185
.059
.066
CHEVROLET
1956
8 A/T
7008737
.048
.046
CHEVROLET
1956-58
348
7011108
.058
.065
CHEVROLET
1956-58
348
7011108
.058
.065
CHEVROLET
1956-58
348
7011108
CHEVROLET
1956-58
348
7011108
CHEVROLET
1956-58
348
7011108
CHEVROLET
1956-58
348
7011108
CHEVROLET
1956-58
V8
7012126
.048
.051
CHEVROLET
1956-58
V8
7012126
CHEVROLET
1956-58
7012128
CHEVROLET
1956-58
V8
7012128
CHEVROLET
1956-58
V8
7012128
CHEVROLET
1956-58
7012128
CHEVROLET
1956-58
V8
7012128
CHEVROLET
1956-58
7012128
CHEVROLET
1957
EARLY 8
7009846
.048
.051
CHEVROLET
1957
LATE 8
7012126
.048
.051
CHEVROLET
1957
LATE 8
7012126
CHEVROLET
1958
348?Ÿ?›€??? 8 A/T
7011108
.058
.065
CHEVROLET
1958
348?Ÿ?›€??? 8 A/T
7011108
CHEVROLET
1958
348?Ÿ?›€??? 8 A/T
7011108
CHEVROLET
1958
283?Ÿ?›€??? A/T
7012128
CHEVROLET
1958
283?Ÿ?›€??? A/T
7012128
CHEVROLET
1958
283?Ÿ?›€??? A/T
7012128
CHEVROLET
1959-60
EARLY 283?Ÿ?›€???
7013004
CHEVROLET
1959-60
348?Ÿ?›€???
7013006
CHEVROLET
1959-60
283?Ÿ?›€???
7013010
.047
.053
CHEVROLET
1959-60
348?Ÿ?›€???
7013012
.056
.067
CHEVROLET
1960
LATE 348?Ÿ?›&eu
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Hudson
Hupmobile
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Innocenti
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Lotus
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Morris
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Rover
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Studebaker Truck
Terraplane
Toyota
Triumph
Vanden Plas
Volvo
White
Wolseley
by Carb Types
Aisan 2 Barrel
Carter
Edelbrock 4 Barrel
Ford Autolite Motorcraft
Hitachi
Holley
IHC
Keihin
Kingston
Marvel Schebler
Mikuni Solex
Mercarb
Nikki
Rochester
Solex
Stromberg
SU
Weber
Zenith
Zenith Stromberg
by Part Type
Accelerator Pump
Ball Stud
Brass Fittings
Bushings
Carburetor Kits
Clean Out Plugs
Clips & Retainers
Electric Choke Conversion Kits
Fuel Filters
Floats
Gaskets
Idle Mixture Screws
Check Balls & Check Weights
Fuel & Vacuum Hose
Jets & Metering Rods
Needle and Seat
Power Valves & Jets
Pull-Off
Rods & Linkage
Rubber Caps
Screws
Thermostats
Throttle Position Sensors and Solenoids
Float Pins
Springs
Marine
Acadia
Aero
Aeroceanic Motors
Aquanautics
Chris Craft
Chrysler Marine
Chrysler Outboard
Clinton Outboard
Crosley Marine Carburetor Parts
Crusader Marine Carburetor Parts
Daytona
Dearborn
Ford Marine
Gray Marine
Grumman Allied
Holley Universal
Johnson Evinrude Marine Outboard
Kermath Marine
Kiekhaefer Carburetor Parts
Kohler
Lathrop Marine
Marine Chokes
Medalist Marine
Mercury Marine
Mercury Marine Outboard
Mercury Mariner
Montgomery Ward Sea King Outboard Parts
Nordberg Marine
Oldsmobile Marine
OMC Marine Parts
Outboard Motors
Owens
Palmer Marine
Pleasure Craft
Redwing Marine
Revley Marine
Salmon Stiles
Scripps Marine
Tillotson Marine Outboard
Universal Motors
Volvo Penta
Yamaha Outboard
Ag & Industrial
Acadia
Allis Chalmers
American Tractor
Automatic Transportation Company
Avco
Baker
Bardco
Bay City
Buda
Buffalo Springfield
Burmeister Wain
Butler Bin
Case
Caterpiller
Champ Lift Truck
Clark Agriculture
Chicago Pneumatic
Chrysler Industrial
Climax Engineering
Clinton
Clyde Iron Works
Cockshutt
Continental
Crosley
Davey
Divco
Duplex
Earthmaster
Easthope Brothers
Eaton Corporation
Elwell Parker Company
Fairbanks Morse
Fairmont
Fate Root Heath
Federal Machine
Ford
General Industrial
Gibson
Gordon Smith
Hercules
Hobart Brothers
Hollingsworth
Hough
Holtkamp
Huber
Hyster
IHC Carburetor Parts
Ingersoll Rand Industrial
Intercontinental
Jacques
Jaeger
John Deere Tractor
Joy Manufacturing
Kaiser Industrial
Kalamazoo Railroad
Kohler Industrial
Kurtz Root
Leroi
Lincoln Electric Industrial
Lunnenberg
Lycoming Industrial
Massey Ferguson
Mercury Manufacturing
Miller Applications
Minneapolis Moline
Motor
Motoresearch
National Farm Agriculture
New Holland
New Idea Farm Equipment
Novo
Oliver Carburetor Parts
Onan Industrial Carburetor Parts
Owatonna
Palmer
Perkins
Pettibone
Pioneer Agriculture & Industrial
Railcar
Ready Power
Redwing
Reiner
Robinson Machinery
Russell Agriculture & Industrial
Schramm
Seagrave
Service Caster
Sullair
Tenant
Thermo King
Thew Shovel
Toro
Towmotor
Toyota Forklift
Transicold
Transitier
Universal Motors
U.S. Motors
Volvo
Western Gear
White Motors Truck Carburetor Parts
Winpower
Wisconsin Motors
Waukesha Industiral
Yale and Towne
Odds & Ends
Carburetors
Injectors
Acura Injector Parts
Alfa Romeo Injector Parts
Audi Injector Parts
BMW
Buick
Cadillac Injector Parts
Chevrolet
Chevrolet Truck
Chrysler
Daewoo
Daihatsu
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Dodge Truck
Eagle Injector Parts
Fiat
Ford Injectors
Ford Truck
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Geo
Honda
Hyundai Injector Parts
Infinity Injector Parts
Isuzu
Jaguar
Jeep
Kia Injector Parts
Land Rover Injector Parts
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Mazda Fuel Injector Parts
Mercedes Benz
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