Wilwood 260-12387 is a compact single outlet master cylinder with a 7/8 in bore, integral side mounting lugs on 3.00 in centers instead of a traditional mounting flange, and a 1/8-27 NPT outlet at the top of the bore to reduce trapped air. It is built for tight spaces that still need the output of a full size master cylinder: the body is 3.37 in from mounting boss to end, giving 2.16 in of extra clearance to the outlet, with 1.12 in of piston stroke. The body is black E-coated aluminum. The inlet accepts the included remote reservoir and also has 11/16-20 internal threads for custom reservoir setups.
Notes:
- Rebuild kit: 260-10516.
- Mounts on integral side lugs with 3.00 in centers; there is no traditional mounting flange.
Specifications:
- Brand: Wilwood
- Part Number: 260-12387
- Type: Single Outlet
- Bore Size: 7/8"
- Area (in²): 0.600
- Stroke (in): 1.12
- Volume (cu in): 0.67
- Outlets: 1
- Outlet Size: 1/8-27 NPT
- Material: Aluminum / Plastic
- Finish: Black E-coat
- Reservoir Type: Remote
- Reservoir Size (oz): 10.0 or 4.5
- Reservoir Size (cu in): 18.0 or 12.6
- Overall Length (in): 8.84"
- Flange to End Length (in): 3.37"
- Inlet Size (in): .87" or 11/16-20
- Inlet Fit: 1/4" Hose
- Rebuild Kit: 260-10516
FAQ
What bore size is Wilwood 260-12387?
It has a 7/8 in bore with 0.600 in² of area, 1.12 in of stroke and 0.67 cu in of volume.
What outlet does the master cylinder use?
It has a single 1/8-27 NPT outlet located at the top of the cylinder bore.
How does it mount?
It mounts on integral side lugs spaced on 3.00 in centers, with no traditional mounting flange, which helps in tight spaces.
Does it come with a reservoir?
Yes. It uses a remote reservoir fed by 1/4 in hose, and the inlet also has 11/16-20 internal threads for custom reservoir arrangements.
What rebuild kit fits it?
The rebuild kit is Wilwood 260-10516.
