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Wilwood

Wilwood High Volume Tandem Master Cylinder - 7/8in Bore-W/Pushrod

$274.37 $254.04 Save $20.33

SKU: W00B 260-9439

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In Stock
Ships by Jul 31
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 260-9439

Wilwood's 7/8" or 15/16" bore Tandem Aluminum Master Cylinders available in 3 finishes, plain, ball burnished, and black e-coat. These master cylinders are designed primarily for manual applications and include a pushrod. 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 combination proportioning valve kit, which includes brackets and stainless lines specifically for use with this master cylinder, see PN 260-13190, or 220-13189 for retrofit kit.

Master Cylinder - Tandem - 7/8 in Bore - 1.100 in Stroke - Integral Reservoir - Aluminum - Natural - Kit

MIA's Description

The Wilwood 260-9439 is an Aluminum Tandem Master Cylinder with Pushrod designed for manual applications. It features a 7/8" bore size and is compatible with mount flanges from 3.22" to 3.40", suitable for most domestic cars and trucks from the mid-1960s to present. It has a stroke of 1.10" and fluid outlet ports on both sides of the bore. The unit weighs 3 lbs.

Fitment

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Specifications

BrandWilwood
Part NumberW00B 260-9439

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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