SILCA 741 Leather Piston Gasket (formerly 74.1)

17 reviews

What is it?

The 741 Leather gasket fits late model SILCA pumps with 30mm inner diameter.

Who's it for?

The cyclist who appreciates a long-lasting tool and is looking to bring their 2008 or newer SUPER PISTA and SUPER PISTA ULTIMATE floor pump back to like-new condition.

Why We Designed It | Product Specs | Getting Started

Why We Designed It:

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.




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

Getting Started:

For further information on the 741 Leather Washer, please visit the SILCA resource center. 


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Customer Reviews
4.9 Based on 17 Reviews
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Filter Reviews:
Keith L.
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.
perfect fit

the leather piston gasket gave new life to my pump easy install

Laurie F.
Who Knew?

Who knew it would be so easy to re-build our pump? Quick delivery, quality parts, and extremely helpful videos.

Jun H.

Kelvin T.
Great part

Bought it as a spare.