Brakes› Master Cylinders-Boosters and Components
LEED BRAKES
LEED Brakes 7 inch power booster, 1 inch bore master adjustable combo valve (Crome)
SKU: L028 6J4C7
Easy — 1–2 hours
Description
Part #: 6J4C7
New 7" chrome plated power brake booster, master cylinder & adjustable combination block. This top quality power brake booster is designed mount directly to your factory firewall. This power booster works great as an upgrade from manual to power brakes for vehicles with automatic transmissions. Also included in this kits is a new factory style 1" bore master cylinder and proportioning valve equipped to work with 4 wheel disc brake & Front Disc / Rear Drum applications.
Features:
- New unit not remanufactured
- Includes brackets and pushrod
Leed Brakes power booster assemblies are shipped fully assembled. This insures proper adjustment of the pushrod between the power booster and master cylinder and proper fitment all valves, lines and brackets for a trouble-free installation.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | LEED BRAKES |
| Part Number | L028 6J4C7 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy