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Home :: Mustang Brakes & Wheels :: Brake Master Cylinder Swaps :: Manual Brakes :: 1979-86 :: 21mm 1987-93 5.0L master cyl.

21mm 1987-93 5.0L master cyl.

21mm (1987-93 stock 5.0L power) Master Cylinder Swap, Manual

When you are swapping from the stock 1979-86 5.0L Mustang master cylinder to the 1987-93 5.0L Mustang 21mm power-assisted brake master cylinder while converting to manual brakes, listed below are the parts required, parts we recommend, and items you may also need.

These parts fit

1979-86 Mustang 5.0L
21mm (1987-93 5.0L Mustang power-assisted) master cylinder
Manual brake conversion

Required Items

Master cylinder
Master cylinder installation kit - not available yet
Manual brake conversion kit

Recommended Items

Adjustable brake proportioning valve
Brake fluid
Kit to disable the stock proportioning valve

Displaying 1 to 5 (of 5 products)

Product(s)-	Part #	Price
Manual Brake Conversion Kit, 1979-93 Parts used when converting a Mustang from power brakes to manual brakes. Includes new pedal arm, firewall adapter block, pushrod, and hardware. Does not include master cylinder or brake lines. This kit fits 1979-93...	MMBAK-10	$199.95 ... more info
Manual Brake Pedal Kit, 1979-93 Manual brake pedal kit with correct mechanical pedal ratio for manual brakes. Includes parts used when converting a Mustang from power brakes to manual brakes except the firewall adapter block. Includes new pedal arm,...	MMBAK-11	$149.95 ... more info
Brake adapter fittings, 1987-93 master cylinder Adapter fittings to connect 1987-93 3-port master cylinder to standard 3/16" diameter brake lines with 3/8-24 inverted-flare tube nuts. This kit fits 1987-93 Mustang 5.0L master cylinder (21mm bore) Any car that has...	MMBAK-5.2	$12.95 ... more info
Adjustable Brake Proportioning Valve Brake Proportioning Valve for adjusting brake bias This product fits Direct bolt-in fitment on 1979-93 Mustang Fitment for other Mustang years requires adapter fittings or cutting and flaring of the rear brake hard...	BPV-1	$42.97 ... more info
Brake Proportioning Valve Plug, 1979-2004 Plug used to disable the stock brake proportioning valve when an adjustable valve is installed What is this product used for? The stock brake proportioning valve must be removed or disabled whenever an adjustable...	MM-2450-A	$16.97 ... more info