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Product Summary

Universal Fit, Firewall Position, Tandem Outlet Count

  • Designed primarily for manual applications and include a pushrod
  • Will mount to flanges from 3.22" to 3.40"
  • Master cylinder includes fluid outlet ports on both sides of the bore
  • Stroke is set at 1.10" with a volume ratio of 2:1 between the primary and secondary chambers
  • Machined from high-pressure die cast aluminum

Key Specs

MFG. Part #260-9439
BrandWilwood

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Details

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.

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Specifications

KEY SPECS
MFG. Part #260-9439
BrandWilwood
GENERAL
PositionFirewall
Brake System TypeDisc
Outlet CountTandem
Reservoir TypeIntegral
Master Cylinder Bore Size7/8 Inch
Stroke1.1"
Master Cylinder MaterialAluminum
FinishNatural
Reservoir IncludedYes
Number of Mounting Holes2
Reservoir MaterialAluminum
Reservoir Size (cu in)14.4 or 8.7
Fluid Capacity8.0 / 4.8 fl oz.
Area0.6 sq. in.
Master Cylinder Cap IncludedYes
Hardware IncludedNo
Pushrods IncludedYes
Mounting Bracket IncludedNo
Outlet Fitting3/8"-24 IFF or 1/2"-20 IFF
Outlet Fitting 23/8"-24 IFF or 9/16"-18 IFF
Overall Length12.26"
Mounted Length8.15"
Centerline of Holes3.22"
Sold in QuantityEach
GTIN Code889545068030