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Master Cylinders
Airheart Master Cylinders are manufactured from a non-corrosive engineered resin composite.
Airheart Medium Displacement Master Cylinders are available in six different models (four lever actuated and two rod style configurations) in bore sizes of 3/4″ or 7/8″.
Airheart Large Displacement Master Cylinders are manufactured from a non-corrosive engineered resin composite. The design features a dual mounting pattern for either bulkhead or frame rail mounting. It will also retrofit Hurst and Hurst/Airheart® master cylinder designs and is available in 3/4″ and 7/8″ bore sizes. For use with D.O.T.3 brake fluid only.
Order Master Cylinder – Large Displacement
Part Number
3100-0210
3100-0410
3100-9007
3105-9002
Description
Large Displacement Master Cylinder
Large Displacement Master Cylinder
Overhaul Kit for Large Displacement Master Cylinder
Overhaul Kit for Large Displacement Master Cylinder
Bore
3/4"
7/8"
3/4"
7/8"
Displacement Full Stroke
0.61 in³
0.83 in³
0.61 in³
0.83 in³
Fluid Type
Automotive Brake Fluid (type D.O.T.3)
Automotive Brake Fluid (type D.O.T.3)
Automotive Brake Fluid (type D.O.T.3)
Automotive Brake Fluid (type D.O.T.3)
Force Conversion
2.25 psi/lb
1.66 psi/lb
2.25 psi/lb
1.66
Max. Output Pressure
1,000 psi
1,000 psi
1,000 psi
1,000 psi
Max. Rod Force at 1000psi
444 lb
600 lb
444 lb
600 lb
Stroke
1.25 in
1.25 in
1.25 in
1.25 in
Order Master Cylinder – Medium Displacement
Part Number
3105-0211
3105-0411
3105-0210
3105-0413
Description
Lever Up Actuated, 3/4" bore Medium Displacement Master Cylinder
Lever Up Actuated, 7/8" bore Medium Displacement Master Cylinder
Lever Down Actuated, 3/4" bore Medium Displacement Master Cylinder
Lever Down Actuated, 7/8" bore Medium Displacement Master Cylinder
Lever Orientation
Up
Up
Down
Down
Bore Size
3/4 in
7/8 in
3/4 in
7/8 in
Displacement
0.42 in³
0.75 in³
0.57 in³
0.57 in³
Fluid Type
Automotive Brake Fluid (SAE J-1703)
Automotive Brake Fluid (SAE J-1703)
Automotive Brake Fluid (SAE J-1703)
Automotive Brake Fluid (SAE J-1703)
Force Conversion
3.63 psi/lb
2.66 psi/lb
4.53 psi/lb
3.33 psi/lb
Max. Force at 1000 psi
331 lbs
451 lbs
265 lbs
360 lbs
Stroke
0.96"
0.96"
0.96"
0.96"
Weight
0.90 lbs
0.90 lbs
0.90 lbs
0.90 lbs
Large Displacement Master Cylinder Dimensions
Medium Displacement Master Cylinder Dimensions (Lever Actuated)
Medium Displacement Master Cylinder Dimensions (Rod Actuated)
