JEGS
Adjustable Proportioning Valve
555-63022
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JEGS 555-63022 Adjustable Proportioning Valve Features:
- A necessary part of any performance brake system
- Rotary knob for the finest incremental adjustment of front-to-rear brake bias
- Helps prevent rear brake lock-up by reducing the line pressure by up to 60 percent
- Includes fittings to plumb and adapt to the vehicle’s brake system
- Anodized black with a JEGS laser-etched logo on both sides
JEGS 555-63022 Adjustable Proportioning Valve Includes:
- (2) 3/16 in. Brake Line Fitting Adapters
- (2) 3/16 in. Tube Nuts
- (2) 1/4 in. Brake Line Fitting Adapters
- (2) 1/4 in. Tube Nuts
FAQ
How does an adjustable proportioning valve work?
- The JEGS 555-63022 Adjustable Proportioning Valve allows precise control over brake balance, regulating the pressure sent to the rear brakes for optimal performance under various driving conditions.
How does a proportion valve work?
- A proportion valve, like the JEGS 555-63022, modulates brake fluid pressure to maintain the right balance between front and rear brakes, ensuring safe and effective braking.
What problems can a bad proportioning valve cause?
- A malfunctioning proportioning valve can lead to uneven brake distribution, causing issues like poor braking performance, uneven tire wear, and compromised vehicle safety.
Specifications:
Part Type
Product Line
Adjustment Style
Knob
Inlet Attachment
Female Threads
Inlet Quantity
One
Inlet Size (in.)
3/8-24
Maximum Psi
3,000
Minimum PSI
100
Notes
N/A
Outlet Attachment
Female Threads
Outlet Quantity
One
Outlet Size
3/8-24
Package Depth
1.40
Package Height
6.40
Package Width
2.90
Part Category
Performance Parts
Part Fitment
Universal
Pressure Reduction (%)
57 percent
Proportioning Valve Finish
Black anodized
Proportioning Valve Material
Aluminum
Shipping Weight
.60
JEGS Adjustable Proportioning Valve is rated
out of
5 by
31.
Rated 5 out of
5
by
VensonRacing from
Jegs Brake line adjustable valve.
Good product so far. Does what it is suppose to do.
Date published: 2022-07-02
Rated 5 out of
5
by
Carson Cl from
Does the job
Excellent quality and works great. No complaints.
Date published: 2022-02-21
Rated 5 out of
5
by
Wannabe mechanic from
Perfect, Especially for the Price
This was the finishing touch for a hydro boost swap I did to get rid of the old vacuum booster on a Scout II. I adjusted the valve to get the rear drum brakes to lock up before the front disc brakes.
Date published: 2021-05-04
Rated 5 out of
5
by
Mgould from
Perfect for 14 bolt disc swap
I used this for my 14 bolt FF gm disc brake conversion. My truck has 1/4" brake line, this came with the fittings to accept 1/4". Worked perfectly. adjusted my brakes just how I needed.
1984 k20 Chevy 4x4
Date published: 2020-10-26
Rated 5 out of
5
by
mman from
worked great
put it on as soon as I got it quit pleased so far thank you.
Date published: 2019-04-30
Rated 5 out of
5
by
Buick Nailhead from
Easiest Install I've Experienced
The base product is sound and well designed to fit tight spots; however, the packaging to include fittings to adapt to various environments is fantastic!
Date published: 2018-05-02
Rated 5 out of
5
by
sirdan89 from
okay
Instructions leave out the fact that you need to put pipe tape on the threads to get them to seal. It should either come with sealer or list it in the directions in my opinion. The product itself works fine at a great price. The instructions cost me a lot of time as I had to go back to the store, not happy about that.
Date published: 2018-03-18
Rated 5 out of
5
by
Stumpy4x4 from
ofood product
Great part. Well built, easy to install and came with everything the description listed. Only things you'll need are a flare kit, some thread tape and mounting hardware.
Date published: 2017-10-11
will this work with a combination proportioning valve i installed disc on front an rear of s 56 chevy
The Jegs 555-63022 proportioning valve can be used with a combination proportioning valve to cut down rear pressure.
Date published: 2025-01-14
Where is this 63022 brake proportioning valve made?
The Jegs 555-63022 proportioning valve is made in China.
Date published: 2024-09-16
This can be used for rear disc right
The Jegs 555-63022 proportioning valve can be used on rear disc.
Date published: 2024-02-13
Is that thread locker on the fittings? And is it required? My fittings didn't come with thread locker on them when they arrived. .
The Jegs 555-63022 proportioning valve would have thread sealant on the fitting. Liquid Teflon can be used in its place.
Date published: 2023-06-17
Would this work on an 87 wrangler? Is it universal?
This is a universal style kit, you will need to source the correct size fittings for this rear proportioning valve.
Date published: 2018-07-26
Will this valve work with 3/16 inlet and 1/4 outlet. I’m removing a factory valve for rear disk conversion and it 3/16 from master and 1/4 from factory valve to rear right now
Yes, you can adjust he fittings to work in your application.
Date published: 2018-07-26
I'm not seeing in the parts list a small brake line to fit between the master cylinder and this valve. Is there one available or am I just missing it?
You will normally use this in the rear brake line only. We do have different length lines if you want to use one - https://www.jegs.com/p/JEGS/JEGS-NiCopp-Nickel-Copper-Brake-Lines/2111534/10002/-1
Date published: 2018-07-09
Is this for 3/16" lines?
Yes, this includes the adapters for 3/16" brake line.
Date published: 2018-05-16
![Brake Proportioning Valve for Disc/Drum Applications, Chrome [GM]](https://www.jegs.com/images/photos/500/555/555-631294.jpg){kind=small}
Designed to be used in stock configuration on vehicles with disc/drum brakes. Recommended when large-port GM master cylinder is on the firewall. Disc/Drum Applications. PROP VALVE CHRM DISC/DRUM.
Adjustment Style: FixedInlet Quantity: 2Inlet Attachment: Front - 1/2-20: Rear 7/16-24Outlet Quantity: 3Outlet Attachment: Front (2) 3/8-24 : Rear 9/16-18Proportioning Valve Finish: NaturalProportioning Valve Material: BrassQuantity: Each. Disc/Drum Valves. Leed Brakes, Proportioning Valve, Disc/Drum, Brass, ...
Some parts are not legal for use in California or other states with similar laws / regulations
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