Wilwood 260-14959-BK is a compact tandem master cylinder with an integral reservoir, a 1.00 in bore and a black E-coat finish. The 1 in bore can be used in manual and power assisted systems and does not come with a pushrod. It fits mount flanges from 3.22 in to 3.40 in, common on most domestic cars and trucks from the mid 1960s to present, and has fluid outlet ports on both sides of the bore. Stroke is 1.10 in with a 2:1 volume ratio between the primary and secondary chambers, and the die cast aluminum body weighs about 3 lbs.
Notes:
- This series is offered in 1.00 in and 1-1/8 in bores, in ball burnished and black E-coat finishes.
- Combination proportioning valve kits with brackets and stainless lines: 260-14248 for left hand outlets or 260-15667 for right hand outlets.
- Rebuild kit availability is not listed; contact Wilwood for information.
Specifications:
- Brand: Wilwood
- Part Number: 260-14959-BK
- Type: Tandem Outlet
- Bore Size: 1.00"
- Area (in²): 0.780
- Stroke (in): 1.10
- Outlets: 2
- Material: Aluminum
- Finish: Black E-coat
- Reservoir Type: Integral
- Reservoir Size (oz): 7.8 / 4.7
- Reservoir Size (cu in): 14.0 / 8.5
- Overall Length (in): 7.16"
- Flange to End Length (in): 6.55"
- Outlet Size 1: 1/2-20
- Outlet Fit 1: 3/8-24 IF or 1/2-20 IF
- Outlet Size 2: 1/2-20
- Outlet Fit 2: 3/8-24 IF or 9/16-18 IF
FAQ
What bore size is Wilwood 260-14959-BK?
It has a 1.00 in bore with 0.780 in² of area and a 1.10 in stroke, with a 2:1 volume ratio between chambers.
What mounting flange does it fit?
It fits mount flanges from 3.22 in to 3.40 in, common on most domestic cars and trucks from the mid 1960s to present.
Is it for manual or power brakes?
The 1 in bore can be used in both manual and power assisted brake systems. It does not come with a pushrod.
What are the outlet sizes?
Both outlets are 1/2-20 with ports on both sides of the bore. One side accepts 3/8-24 or 1/2-20 inverted flare fittings and the other accepts 3/8-24 or 9/16-18 inverted flare fittings.
Is a proportioning valve kit available?
Yes. Kit 260-14248 fits left hand outlets and kit 260-15667 fits right hand outlets; each includes brackets and stainless lines.
