Wilwood 260-8556 Tandem Master Cylinder 1-1/8in Bore Aluminum Power Brake
Part # 260-8556 SKU WIL260-8556
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WILWOOD
Wilwood 260-8556 Tandem Master Cylinder 1-1/8in Bore Aluminum Power Brake
Highlights
- Bore diameter
- 1.125 in (1-1/8”)
- Cap included
- Yes
- Chamber quantity
- Dual
- Color
- Natural
- Crush washer
- Yes
- Fittings included
- Yes
- Flange center to center
- 3.22 in
- Interchange number
- 2608556, WIL260-8556
- Material
- Aluminum
- Mounting flange style
- 2-Bolt
- Outlet port quantity
- 2 (1/2-20 in Female)
- Outlet side
- Passenger | Driver
- Port quantity
- 2
- Product type
- Tandem Master Cylinder Kit
- Pushrod included
- No
- Reservoir included
- Yes
- Reservoir style
- Integral
- Stroke length
- 1.1 in
- Type
- Brake Master Cylinders & Parts
Description
The Wilwood 260-8556 Tandem Aluminum Master Cylinder features a 1-1/8-inch bore and is designed primarily for power brake applications using vacuum or hydraulic assist. Its tandem design provides separate primary and secondary fluid chambers in a compact aluminum housing.
Machined from high-pressure die castings, this master cylinder weighs approximately 3 pounds and provides substantial weight savings compared with many traditional cast-iron OE-style master cylinders. Fluid outlet ports are positioned on both sides of the bore to provide flexibility when configuring compatible brake plumbing.
Vehicle Fitment
Application: Primarily designed for compatible power-assisted brake systems using vacuum or hydraulic assist.
Fitment Note: No specific year, make or model fitment is specified. The mounting flange range is 3.22 to 3.40 inches, a dimension used on many domestic cars and trucks. Verify bore size, mounting dimensions, brake-system requirements and hydraulic configuration before ordering.
Key Features & Benefits
- 1-1/8-inch bore tandem master cylinder
- Designed primarily for power brake applications
- Suitable for compatible vacuum-assist or hydraulic-assist systems
- Aluminum construction
- Machined from high-pressure die castings
- Fluid outlet ports located on both sides of the bore
- 1.10-inch piston stroke
- 2:1 volume ratio between primary and secondary chambers
- Approximately 3 lb total weight
- 3.22 to 3.40-inch mounting flange range
Technical Specifications
| Brand | Wilwood |
| Part Number / MPN | 260-8556 |
| Product Type | Tandem Master Cylinder |
| Bore Size | 1-1/8 in |
| Construction | High-Pressure Die-Cast Aluminum |
| Fluid Outlet Configuration | Dual-Side Outlets |
| Stroke | 1.10 in |
| Primary / Secondary Volume Ratio | 2:1 |
| Mounting Flange Range | 3.22-3.40 in |
| Weight | Approx. 3 lb |
| Primary Application | Power-Assisted Brake Systems |
Installation & Compatibility
Verify the required 1-1/8-inch bore size, mounting flange dimensions and hydraulic brake-system requirements before installation. This bore configuration is intended primarily for compatible vacuum-assisted or hydraulic-assisted brake systems.
Follow Wilwood installation instructions and the applicable vehicle service procedures when configuring the master cylinder and brake lines.
California Restriction
No California sales or use restriction is specified in the supplied product information.
Important Notes
- No specific year, make or model fitment is specified.
- Primarily intended for compatible power-assisted brake applications.
- Verify mounting flange dimensions and bore requirements before ordering.
- Confirm complete hydraulic brake-system compatibility before installation.
Vehicle fitment
| Make | Model | Submodel | Years |
|---|
No vehicle matches that filter.
Fitment data from the manufacturer catalogue. Check your engine before ordering, or call us.
Specifications
| Identification | |
|---|---|
| Brand | WILWOOD |
| Part number | 260-8556 |
| SKU | WIL260-8556 |
| UPC | 889545067989 |
| Dimensions and weight | |
| Dimensions (W × H × D) | 5.00 × 10.00 × 5.00 in |
| Material and finish | |
| Color | Natural |
| Finish | Natural |
| Material | Aluminum |
| Series and warranty | |
| Details | |
| Bore diameter | 1.125 in (1-1/8”) |
| Cap included | Yes |
| Chamber quantity | Dual |
| Crush washer | Yes |
| Fittings included | Yes |
| Flange center to center | 3.22 in |
| Includes | Master Cylinder, Fittings, Hardware |
| Interchange number | 2608556, WIL260-8556 |
| Mounting flange style | 2-Bolt |
| Outlet port quantity | 2 (1/2-20 in Female) |
| Outlet side | Passenger | Driver |
| Port quantity | 2 |
| Product type | Tandem Master Cylinder Kit |
| Pushrod included | No |
| Reservoir included | Yes |
| Reservoir style | Integral |
| Stroke length | 1.1 in |
| Type | Brake Master Cylinders & Parts |
Shipping and returns
Shipping. Free on every order, US only. Orders arrive in 2–4 days.
Returns. 30-day returns, except in extreme cases.
Support. Our team is available 24/7 for fitment mismatches or any other reason.
Warranty. Full manufacturer guarantee.
Not sure about this part? Ask us.
Fitment, install, what else you need for the job. A parts person answers, usually within one business day.
We answer by email. No account needed.
Questions and answers
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Reviews
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