SILCA 741 Leather Piston Gasket (formerly 74.1) - SILCA | gasket | bike gasket

SILCA 741 Leather Piston Gasket (formerly 74.1)

Regular price$ 11.00
Rated 4.9 out of 5 stars
14 Reviews

The full grain leather cup seal used in all 30mm internal diameter pumps including our SuperPista Ultimate Hiro edition.

• Fits 30mm internal diameter SILCA
• Made from full grain leather
• Produced by hand on the same
equipment continuously since 1960
• 2.50mm thick leather
• Hand-crafted in Milan, Italy

Limited Warranty


Parts covered by SILCA Limited Warranty are considered to be subject to wear through normal use or are consumable subject to degradation through the course of their daily use.  SILCA guarantees them free from manufacturer defects for 2 years.

    Since the 1960's all SILCA leather gaskets have come from the same leather converting house in the fashion district of Milan, Italy.  For more than 5 decades the same supplier has cut these washers from the excess material left over from the production of exotic handbags, Italian luxury cars interiors, and high-fashion luggage.  A small press is used to trim and pressure-form these leather washers into durable pressure gaskets.

    From a purely functional standpoint, inexpensive o-rings are most commonly used in this application, but no o-ring can match the smooth feel and zero-stiction action of a leather gasket.  It is common today to find SILCA leather gasket pumps throughout the professional peloton (especially during the spring classics) as o-ring seal pumps struggle with heat and often are unable to seal once the pump barrel is hot from inflating more than a few wheels.

    Rated 4.9 out of 5 stars
    Based on 14 reviews
    Total 5 star reviews: 13 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    14 reviews
    • michael g.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      9 months ago
      Lots of air

      It works!

    • Keith L.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      1 year ago
      SILCA 741 Leather Washer

      Great to be able to use pump washers from the original supplier to maintain my SILCA pump top performance. Fits 30mm internal diameter Pista and Super Pista pumps (2008 and later), and also antique SILCA large diameter floor pumps.

    • Daniel R.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      1 year ago
      perfect fit

      the leather piston gasket gave new life to my pump

      easy install

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