Ducati Streetfighter V4S Fork Seals

The Ducati Streetfighter V4S runs a 50 mm upside-down front fork, oil seal 50x63x11 (Marzocchi 50mm USD (Ducati Diavel 2011-2018) + WP 50mm USD (KTM EXC 1998-1999)).Every kit here is verified by the manufacturer to fit this exact bike. Fork seals can share a size and still not seat in a different fork, so we only list what is confirmed for your bike.

  • Fork tube50 mm
  • Oil seal size50x63x11
  • Fork typeUpside-down
  • ForkMarzocchi 50mm USD (Ducati Diavel 2011-2018) + WP 50mm USD (KTM EXC 1998-1999)
KitYearsSeal sizeReplaces OEM
55-130 2021 50x63x11 n/a
57-102 2020–2025 n/a n/a
57-140 2021 n/a n/a
55-157 2020–2025 n/a n/a
56-188 2020–2025 n/a n/a
56-145 2021 n/a n/a

Verified fork kits we stock for your Ducati Streetfighter V4S

Fork Oil Seal Kit — Aprilia EVT Caponord
Fork Seal Kit
Fork Oil Seal Kit — Aprilia EVT Caponord
$19.12
Fork Dust Seal Kit — Aprilia Tuono 1100 V4
Fork Seal Kit
Fork Dust Seal Kit — Aprilia Tuono 1100 V4
$19.50
Fork Oil Seal Kit — Aprilia RSV4 FACTORY
Fork Seal Kit
Fork Oil Seal Kit — Aprilia RSV4 FACTORY
$19.12
Fork Oil & Dust Seal Kit — Aprilia EVT Caponord
Fork Seal Kit
Fork Oil & Dust Seal Kit — Aprilia EVT Caponord
$40.57