Wilwood 260-6579 is a compact single outlet master cylinder with a .70 in bore and an integral 1.4 oz reservoir. The design is used for clutch actuation and other small master cylinder requirements. A plastic screw-on filler cap protects the fluid in the reservoir. The body is bare aluminum with a 1.40 in stroke and a 3/8-24 outlet.
Notes:
- This cylinder is offered in three bore sizes.
Specifications:
- Brand: Wilwood
- Part Number: 260-6579
- Type: Single Outlet
- Bore Size: .70
- Area (in²): 0.380
- Stroke (in): 1.40
- Volume (cu in): 0.53
- Outlets: 1
- Material: Aluminum
- Finish: Bare
- Reservoir Type: Integral
- Reservoir Size (oz): 1.4
- Reservoir Size (cu in): 2.57
- Flange to End Length (in): 3.91"
- Outlet Size: 3/8-24
- Outlet Fit: 3/8-24 IF Female
FAQ
What bore size is Wilwood 260-6579?
It has a .70 in bore with 0.380 in² of area, 1.40 in of stroke and 0.53 cu in of volume.
Can it be used as a clutch master cylinder?
Yes. This compact design is used for clutch actuation and for small brake master cylinder requirements.
How large is the reservoir?
The integral reservoir holds 1.4 oz (2.57 cu in) and has a plastic screw-on filler cap.
What is the outlet size?
It has a single 3/8-24 outlet with a 3/8-24 inverted flare female fit.
How far does it extend past the mounting flange?
It measures 3.91 in from the mounting flange to the end.

