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Twin Power 88-Up XL 90-Up Big Twin Vacuum Piston For CV Carburetor Replaces H-D 27585-88
TwinPower
TwinPower

Twin Power 88-Up XL 90-Up Big Twin Vacuum Piston For CV Carburetor Replaces H-D 27585-88

$56.31

On Backorder — Expected to ship by Apr 26, 2026

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Twin Power CV Carburetor Vacuum Piston for Harley-Davidson XL and Big Twin models. Replaces H-D 27585-88.

Key Features

  • Fits 1988-later XL and 1990-later Big Twin Harley-Davidson models with CV carburetors.
  • Direct O.E.M. replacement for Harley-Davidson part number 27585-88.
  • Restores proper function to the CV carburetor's vacuum-operated diaphragm.
  • Well-built to ensure smooth operation and reliable fuel delivery.
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Product Details

This is the Twin Power vacuum piston for your CV carburetor, designed to replace the worn-out or broken original part. If your Harley-Davidson's CV carb isn't responding like it used to, or if you're doing a full rebuild, this component is key to restoring proper function. It's a direct replacement for the Harley-Davidson part number 27585-88.

This vacuum piston is built to fit a wide range of Harley-Davidson models from the late 80s and 90s through the mid-2000s, including popular bikes like the Dyna Super Glide, Heritage Softail Classic, and Electra Glide Standard. Getting this part right ensures your carburetor's diaphragm operates smoothly, controlling fuel mixture based on engine vacuum. It's a well-built piece that gets the job done, bringing your bike's fuel delivery back to spec.

Specifications

Brand
TwinPower
Manufacturer Part #
488783
UPC
887337231518

Frequently Asked Questions

Twin Power 88-Up XL 90-Up Big Twin Vacuum Piston For CV Carburetor Replaces H-D 27585-88

$56.31