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Hydro Boost Master Cylinder , 1-1/8 Bore, 3/8-24 ports, Cast Steel SKU: 3088
Hydro Boost Master Cylinder , 1-1/8 Bore, 3/8-24 ports, Cast Steel
Hydro Boost Master Cylinder 1-1/8 Bore 3/8-24 ports Cast Steel
Product Overview:
Heavy duty 1 1/8" bore master cylinder
This replacement master cylinder has twin large capacity reservoirs especially suitable for 2 or 4-wheel disc brakes. It can be used with vacuum assist brakes, hydro boost power brakes, or even manual brakes**. This master has the common 3/8"-24 fittings on both sides so you can route your brakes lines as you see fit. Included are plugs to block off the unused ports.
If you do not want to worry about adapting your existing hoses/lines, upgrade to our #3077 hose kit seen to the right on this page.
Included items: Bench bleeding kit, port plugs, and bore adapter for short-rod boosters.
**Note: Manual brake systems require the deeper piston back bore to safely accommodate their longer pedal rods. Therefore ALL manual installations require that the "bore adapter" (see image above) be left out, or removed if already installed, to allow safe rod engagement. In manual setups more pedal pressure will be required due to the larger than stock bore of this master cylinder.
Full description
Heavy duty 1 1/8" bore master cylinder
This replacement master cylinder has twin large capacity reservoirs especially suitable for 2 or 4-wheel disc brakes. It can be used with vacuum assist brakes, hydro boost power brakes, or even manual brakes**. This master has the common 3/8"-24 fittings on both sides so you can route your brakes lines as you see fit. Included are plugs to block off the unused ports.
If you do not want to worry about adapting your existing hoses/lines, upgrade to our #3077 hose kit seen to the right on this page.
Included items: Bench bleeding kit, port plugs, and bore adapter for short-rod boosters.
**Note: Manual brake systems require the deeper piston back bore to safely accommodate their longer pedal rods. Therefore ALL manual installations require that the "bore adapter" (see image above) be left out, or removed if already installed, to allow safe rod engagement. In manual setups more pedal pressure will be required due to the larger than stock bore of this master cylinder.
This replacement master cylinder has twin large capacity reservoirs especially suitable for 2 or 4-wheel disc brakes. It can be used with vacuum assist brakes, hydro boost power brakes, or even manual brakes**. This master has the common 3/8"-24 fittings on both sides so you can route your brakes lines as you see fit. Included are plugs to block off the unused ports.
If you do not want to worry about adapting your existing hoses/lines, upgrade to our #3077 hose kit seen to the right on this page.
Included items: Bench bleeding kit, port plugs, and bore adapter for short-rod boosters.
**Note: Manual brake systems require the deeper piston back bore to safely accommodate their longer pedal rods. Therefore ALL manual installations require that the "bore adapter" (see image above) be left out, or removed if already installed, to allow safe rod engagement. In manual setups more pedal pressure will be required due to the larger than stock bore of this master cylinder.
Heavy duty 1 1/8" bore master cylinder
This replacement master cylinder has twin large capacity reservoirs especially suitable for 2 or 4-wheel disc brakes. It can be used with vacuum assist brakes, hydro boost power brakes, or even manual brakes**. This master has the common 3/8"-24 fittings on both sides so you can route your brakes lines as you see fit. Included are plugs to block off the unused ports.
If you do not want to worry about adapting your existing hoses/lines, upgrade to our #3077 hose kit seen to the right on this page.
Included items: Bench bleeding kit, port plugs, and bore adapter for short-rod boosters.
**Note: Manual brake systems require the deeper piston back bore to safely accommodate their longer pedal rods. Therefore ALL manual installations require that the "bore adapter" (see image above) be left out, or removed if already installed, to allow safe rod engagement. In manual setups more pedal pressure will be required due to the larger than stock bore of this master cylinder.
This replacement master cylinder has twin large capacity reservoirs especially suitable for 2 or 4-wheel disc brakes. It can be used with vacuum assist brakes, hydro boost power brakes, or even manual brakes**. This master has the common 3/8"-24 fittings on both sides so you can route your brakes lines as you see fit. Included are plugs to block off the unused ports.
If you do not want to worry about adapting your existing hoses/lines, upgrade to our #3077 hose kit seen to the right on this page.
Included items: Bench bleeding kit, port plugs, and bore adapter for short-rod boosters.
**Note: Manual brake systems require the deeper piston back bore to safely accommodate their longer pedal rods. Therefore ALL manual installations require that the "bore adapter" (see image above) be left out, or removed if already installed, to allow safe rod engagement. In manual setups more pedal pressure will be required due to the larger than stock bore of this master cylinder.
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Q&A
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Asked by Larry K, June 4, 2022
Q: Which port should be used for the front brakes and which one for the rears? I have front disc and rear drums. I purchased the full hydroboost system.
⮞ 1 Answer
Answered by ☆ sales - June 6, 2022
A: We normally do front to the front, and rear to the rear.
Asked by Anonymous, May 19, 2020
Q: will that 3088 master cylinder bolt to a existing astro van hydoboost
⮞ 1 Answer
Answered by ☆ sales - May 19, 2020
A: The mount flange is compatible with 3 1/8 - 3 3/8 bolt patterns. You will want to confirm your Astro unit, as we cannot say for sure.
Asked by Gary A., August 15, 2017
Q: Is there any difference between the #3088 and #3079 master cylinders? The descriptions seem the same.
⮞ 1 Answer
Answered by ☆ sales - August 16, 2017
A: With the 3088, we make sure you get the spacer, Bullet that is needed to decrease the bore depth for use with the Hydro Boost.
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