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$59.99
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore

Power/Manual Master Cylinder, 1-1/8 Inch Bore

Universal Fit, Firewall Position, Disc/Drum Brake System Type, Tandem/Both Sides Outlet Count

16 Reviews | 14 Answered Questions
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Lincoln, NE -
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Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
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Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
Power/Manual Master Cylinder, 1-1/8 Inch Bore
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Part # 91031440
$59.99
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  • Corvette-style master cylinder has a 1-1/8" bore and can be used for multiple vehicles with either manual or power brakes
  • Large bore master cylinders offer less pressure but more volume, meaning if you have large bore calipers, the brake pedal doesn't have to travel as far to create the needed volume
  • Features two 3/8"-24 IFF ports on each side allowing multiple mounting options, plugs included for the side not used
  • 2 bolt mount spacing is 3-3/8" on center and can be modified if needed to adapt to your vehicle
  • Piston has a deep well for manual brakes/push rod, plunger slug is included to work with a power booster, threaded adjustment of booster rod will need to be made when used

Details

Position:
Firewall
Brake System Type:
Disc/Drum
Outlet Count:
Tandem/Both Sides
Reservoir Type:
Integral
Master Cylinder Bore Size:
1-1/8 Inch
Master Cylinder Material:
Steel
Finish:
Natural
Pushrods Included:
No
Outlet Fitting:
3/8"-24 (4)
Overall Width:
4.25"
Overall Height:
5"
Mounted Length:
8.25"
Centerline of Holes:
3.38"
MFG. Part #:
91031440
Sold in Quantity:
Each
Notes:
Pushrod hole allows use with manual pedals and/or power boosters. 9103190 STEEL port plug kit.

Info

Corvette-style master cylinder has a 1-1/8" bore and is suited for disc/drum combinations. Features dual outlets so the plumbing can come out either side of the master cylinder. These master cylinders will work with manual or power brake systems. They come with a deep-well piston for manual brakes and an adapter to fill the deep well for use with a power booster.

  • 3/8"-24 IFF outlet ports
  • Plugs are included for the unused ports
  • Mount spacing is 3-3/8" on center
  • Works with power or manual brake systems

Brake System Builder's Tip (Link)

Note: Customers intending to use this as a manual brake pedal assembly should note that the pushrod and boot are not included.

Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection

Notes


Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • Dusty's '62 Impala is an absolute time capsule. It's original paint and interior are remarkably well preserved. But that doesn't mean that it's owner is afraid to drive it.
  • Looking for a performance or custom brake set-up? Whether you're replacing components or building your brakes from scratch, you may wonder what size master cylinder or booster to use. No need to worry, just follow our handy guide.
  • Follow this guide to learn how the change of bore size on a master cylinder affects a four-wheel disc brake system. View the conversion chart to figure the total bore area for your brake setup.

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