Fathers Day
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

JEGS Performance Products 631001

Chrome Aluminum Master Cylinder GM Universal Mounting

JEGS Performance Products 631001

555-631001

jegs shipping
FREE Shipping
Ships
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
JEGS Performance Products 631001 Chrome Aluminum Master Cylinder GM Universal Mounting $151.99
Chrome Aluminum Master Cylinder
  • GM Universal Mounting
  • 1-1/8" Bore
  • (1) 9/16"-18 & (1) 1/2"-20 Port on Driver's Side
    For:
  • Non-Power Assisted Disc/Drum Applications
  • Power Assisted Drum/Drum, Disc/Drum & Disc/Disc Applications

  • JEGS Performance Products 631001 Details

    Cast Aluminum Master Cylinders

    This dual reservoir master cylinder is machined from cast, aircraft quality, aluminum into a smooth and stylish unit. We then fully polish each one and finish it with high luster chrome to provide the finishing touch to any engine compartment. Features GM universal mounting with one 9/16" & one 1/2" port on driver's side.

    Specifications:

    Hardware Included
    No
    Front Brake Type
    Various - Application Specific
    Bowl Design
    Dual
    Brake Booster Included
    No
    Master Cylinder Bore Size (in.)
    1.125
    Master Cylinder Cap Included
    Yes
    Master Cylinder Finish
    Chrome
    Master Cylinder Material
    Aluminum
    Mounting Brackets Included
    No
    Pushrod Included
    No
    Quantity
    Sold individually
    Remote Reservoir
    No
    Reservoir Included
    Yes
    Reservoir Material
    Aluminum
    Mounting Hole Quantity
    2 holes
    Master Cylinder Stroke (in.)
    N/A
    Mounting Flange Center to Center Distance (in.)
    N/A

    Cast Aluminum Master Cylinders
    JEGS cast aluminum master cylinders feature either a high luster chrome or a durable black powder coat finish, GM universal mounting.


    Power Brake Boosters
    JEGS power brake boosters feature either a durable black powder coat or chrome finish. Available in combinations for every application. A pedal rod extension kit and a brake booster bracket are recommended (sold separately) when converting from manual to power brakes.
    Master Cylinder and Booster Conversion Kits
    JEGS 1-1/8" master cylinder and power brake booster conversion kits feature a high luster chrome or black powder coat finish. Available in combinations for every application.
    Brake Booster Brackets
    JEGS polished stainless steel or durable black powder coat brake booster brackets are designed to convert the firewall stud mounting pattern from a manual master cylinder to the power brake booster pattern.

    Does JEGS Performance Products 631001 fit your vehicle?

    Narrow Results
    Filter By
    Year
    Filter By
    Make
    Filter By
    Model
    Filter By
    SubModel
    Filter By
    EngineType
    Filter By
    CC
    Filter By
    Liter
    Filter By
    Aspiration

    1999-2000 GMC SIERRA 2500

    • EngineType: ALL
    • SubModel: BASE

    1972 GMC K35/K3500 PICKUP

    • CC: 4098
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: CONCOURS ESTATE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1962 CHEVROLET C10 PICKUP

    • CC: 3852
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 235
    • EngineType: L6 ( 3.8 L / 235 )

    1968 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: 300 DELUXE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1995 GMC C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SIERRA SL
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1973 CHEVROLET K30 PICKUP

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1950-1952 GMC TRUCK

    • EngineType: ALL
    • SubModel: ALL

    1968-1972 CHEVROLET K30 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1989 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1989-1996 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA XC

    1967 PONTIAC LEMANS

    • CC: 3769
    • Liter: 3.8
    • Aspiration: N
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1994 CHEVROLET K2500 PICKUP

    • Liter: 6.5
    • Aspiration: T
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1973 GMC C1500 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET C10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967 BUICK SKYLARK

    • CC: 3687
    • Liter: 3.7
    • SubModel: BASE
    • CUI: 225
    • EngineType: V6 ( 3.7 L / 225 )

    1987 CHEVROLET R20 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1962 CHEVROLET C20 PICKUP

    • Liter: 3.9
    • SubModel: BASE
    • CUI: 235
    • EngineType: L6 ( 3.9 L / 235 )

    1974 CHEVROLET K20 PICKUP

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1989-1997 GMC K3500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA XC

    1979 CHEVROLET C30 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 CHEVROLET K10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1983-1984 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM

    1955-1957 CHEVROLET ONE-FIFTY SERIES

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1962-1964 CHEVROLET BEL AIR

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1969 GMC C1500 PICKUP

    • CC: 5012
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • CUI: 305
    • EngineType: V6 ( 5.0 L / 305 )

    1968-1972 GMC C35/C3500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968-1972 CHEVROLET C20 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968 CHEVROLET BEL AIR

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1994 CHEVROLET C2500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1971 GMC C35/C3500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1974 GMC K1500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1982 CHEVROLET K30 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1994 CHEVROLET C2500 PICKUP

    • CC: 5735
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1999 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SL

    1969 CHEVROLET TOWNSMAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET EL CAMINO

    • CC: 6489
    • Liter: 6.5
    • SubModel: CUSTOM
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1968 OLDSMOBILE CUTLASS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 PONTIAC LEMANS

    • CC: 4098
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1988-1993 GMC C2500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA

    1968 GMC K25/K2500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1961-1966 CHEVROLET C10 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1964-1965 CHEVROLET C30 PICKUP

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1966 CHEVROLET C30 PICKUP

    • Liter: 6.0
    • SubModel: BASE
    • CUI: 366
    • EngineType: V8 ( 6.0 L / 366 )

    1967 GMC C1500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1987 GMC V1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1970 CHEVROLET K20 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 CHEVROLET K20 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1969 CHEVROLET BROOKWOOD

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1952-1958 CHEVROLET TRUCK

    • CC: 3852
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 235
    • EngineType: L6 ( 3.8 L / 235 )

    1992-1993 CHEVROLET C1500 PICKUP

    • Liter: 6.2
    • SubModel: BASE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1967 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1967-1968 GMC C15/C1500 PICKUP

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1967 CHEVROLET CHEVY II

    • CC: 5358
    • Liter: 5.3
    • SubModel: NOVA
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1963-1965 CHEVROLET C20 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1986 GMC C1500 PICKUP

    • Liter: 6.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1967-1969 CHEVROLET CAMARO

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1972 GMC C35/C3500 PICKUP

    • CC: 4098
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968 CHEVROLET K20 PICKUP

    • CC: 6489
    • Liter: 6.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1969 GMC K35/K3500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 GMC C1500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1998-2000 GMC C3500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1968 CHEVROLET K30 PICKUP

    • CC: 6489
    • Liter: 6.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1973 CHEVROLET C30 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974 GMC C1500 PICKUP

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1959-1961 CHEVROLET BROOKWOOD

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1973 CHEVROLET C10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1964-1965 CHEVROLET K20 PICKUP

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1972 CHEVROLET C20 PICKUP

    • CC: 4098
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1962 CHEVROLET C20 PICKUP

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1954-1955 GMC TRUCK

    • CC: 4065
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 248
    • EngineType: L6 ( 4.1 L / 248 )

    1969-1970 CHEVROLET K10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1993 CHEVROLET K2500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1966 GMC K15/K1500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968 CHEVROLET C30 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: NOMAD
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1966-1968 GMC K15/K1500 PICKUP

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1973-1974 CHEVROLET C30 PICKUP

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1987 GMC R1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1971 GMC C35/C3500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1988-1993 GMC K2500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA

    1959 CHEVROLET TRUCK

    • CC: 4278
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 261
    • EngineType: L6 ( 4.3 L / 261 )

    1968 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: BASE

    1958-1964 CHEVROLET BISCAYNE

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1972 CHEVROLET K20 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 CHEVROLET IMPALA

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: ME
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1967-1969 CHEVROLET IMPALA

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1982 CHEVROLET K10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: CUSTOM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 CHEVROLET K30 PICKUP

    • CC: 6489
    • Liter: 6.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1996-1997 CHEVROLET C2500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1966 CHEVROLET K10 PICKUP

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1964-1966 CHEVROLET K10 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1969 CHEVROLET CHEVELLE

    • CC: 4097
    • Liter: 4.1
    • SubModel: 300 DELUXE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967 CHEVROLET CHEVELLE

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1967-1968 GMC K25/K2500 PICKUP

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1964 CHEVROLET IMPALA

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1968 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1967 PONTIAC LEMANS

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )
    631001 - JEGS Master Cylinders & Power Brake Boosters is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Master Cylinder I got this to replace my original M/C for a 84 Chevy truck that I am rebuilding. It has a very nice finish that will match my chrome booster I just received. Love it.
    Date published: 2016-02-08
    • y_2017, m_6, d_21, h_24
    • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_889831, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_jegs
    Items You Need
    Items You May Also Consider