Wilwood High Volume Tandem Master Cylinder - 1 Inch Bore Black

Wilwood’s Tandem Aluminum Master Cylinder is available in 2 bore sizes 1.00” and 1-1/8”; and 3 finishes, plain, ball burnished and black e-coat. 7/8” bore master cylinders are designed primarily for manual applications and include a pushrod. The 1” bore can be used in manual and power assisted applications and does not come with a pushrod. The 1-1/8” bore is designed for use primarily with power brake applications, either from vacuum assist or hydraulic assist systems. They’re designed for mount flanges from 3.22” to 3.40”, common measurements for most domestic cars and trucks from the mid 1960s to present, and offer fluid outlet ports on both sides of the bore. The stroke is set at 1.10” with a volume ratio of 2:1 between the primary and secondary chambers. Machined from high-pressure die castings, each master cylinder weighs only 3lbs, a 75% weight savings over most cast iron OE type master cylinders. We also offer a our combination proportioning valve kit, which includes brackets and stainless lines specifically for use with these master cylinders, see PN 260-13190, or 220-13189 for retrofit kit.

The Wilwood High Volume Tandem Master Cylinder (Part Number 260-8555-BK) offers reliable performance for a variety of automotive braking systems. Crafted from high-pressure die cast aluminum, this master cylinder is designed to provide durability while significantly reducing weight, weighing only 3 pounds—about 75% lighter than traditional cast iron units. Its compact design and robust construction make it suitable for a broad range of vehicles from the mid-1960s to present, with compatible mount flange measurements ranging from 3.22 to 3.40 inches.

The 1-inch bore size of this master cylinder is versatile, suitable for both manual and power-assisted applications. It does not include a pushrod, allowing for customization based on your specific setup. The cylinder features fluid outlet ports on both sides of the bore, facilitating flexible installation options. The stroke length is set at 1.10 inches, with a fluid volume ratio of 2:1 between the primary and secondary chambers, ensuring consistent brake performance.

Finished in a durable black e-coat, the Wilwood tandem master cylinder combines corrosion resistance with a professional appearance. This component is ideal for those seeking a high-volume, lightweight brake master cylinder that supports various brake systems, including vacuum and hydraulic assist configurations. For enhanced system integration, Wilwood offers a matching combination proportioning valve kit, complete with brackets and stainless lines, designed specifically for use with this master cylinder (see PN 260-13190 or 220-13189 for retrofit options). Whether upgrading or building a custom brake system, this master cylinder provides dependable stopping power with flexible installation options and high-quality construction.

Features:

• Bore sizes available: 1.00 inch and 1-1/8 inch for versatile applications

• Constructed from high-pressure die cast aluminum for durability and weight savings

• Includes pushrod for 7/8 inch bore manual applications; no pushrod included for 1 inch bore units

• Designed to fit standard mount flanges from 3.22 to 3.40 inches, compatible with most domestic cars and trucks

• Fluid outlet ports located on both sides of the bore for flexible installation

• Stroke length of 1.10 inches with a 2:1 volume ratio between chambers

• Finished in black e-coat for corrosion resistance and a sleek appearance

• Compatible with vacuum and hydraulic assist brake systems for maximum versatility

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1