JetPrime JP KS DU056 kill switch for Ducati Streetfighter V4 — view 1 360° — drag me
Approximately 350 g
02 · Data & docs

The facts.

Technical data
BrandJetPrime
Part numberJP KS DU056 (black) / JP KS DU056 T (titanium)
FunctionIgnition block replacement kill switch button
MaterialSolid-machined Ergal (7075 aluminium)
Button protectionIP69K
Weight savedApproximately 350 g versus the standard ignition block
Supplied withKey Box for the original key and immobiliser antenna
InstallationPlug-and-play, fully reversible, no loom modification
FitmentDucati Streetfighter V4 (2025–2026) / Ducati Streetfighter V4S (2025–2026) / Ducati Streetfighter V4 SP (2025–2026)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

Ducati reworked the Streetfighter V4 for 2025, and with it the ignition wiring — which is why the 2025-on bikes take JP KS DU056 rather than the part that served 2020 to 2024. Same job, different connector, and this time available in titanium as well as black.

Key Features

  • For the 2025–2026 Streetfighter V4, V4 S and V4 SP
  • Deletes the ignition block, key and lock
  • About 350 g saved at the steering head
  • Black or titanium anodised finish
  • Solid Ergal housing with an IP69K push button
  • Key Box included for the Ducati immobiliser

2025 Is a Different Part

The pre-2025 Streetfighter V4 takes JP KS DU021. The two switches look identical and will not substitute for one another. Ducati changed the ignition circuit with the model update, so the model year on the frame plate is the thing to check — not the bodywork, which carried over closely enough to mislead.

Titanium as a Finish

JP KS DU056 T is anodised to a warm grey that sits close to raw alloy — the option for anyone who wants the switch to read as machined metal rather than as a black component. On a Streetfighter, where the top yoke is fully exposed, that choice is visible on every ride. Black (JP KS DU056) remains the option that disappears.

Installation

Standard mounting points, factory connector, nothing cut. The Key Box holding the original key connects to the immobiliser antenna and tucks away under the tank. Fully reversible — which on a bike still inside its warranty period is worth more than it sounds.

Fitment and Compatibility

  • Ducati Streetfighter V4 (2025–2026)
  • Ducati Streetfighter V4 S (2025–2026)
  • Ducati Streetfighter V4 SP (2025–2026)

Road Approval

None. Closed-circuit and competition use only.

Specifications

  • Brand: JetPrime
  • Part numbers: JP KS DU056 (black) / JP KS DU056 T (titanium)
  • Function: ignition block replacement kill switch button
  • Material: solid-machined Ergal (7075 aluminium)
  • Button protection: IP69K
  • Weight saved: approximately 350 g versus the standard ignition block
  • Supplied with: Key Box for the original key and immobiliser antenna
  • Installation: plug-and-play, fully reversible, no loom modification
  • Fitment: Ducati Streetfighter V4 / V4 S / V4 SP (2025–2026)
  • Road approval: none — closed-circuit and race use only
FitmentWhich bikes this fits
  • Ducati Streetfighter V4 (2025–2026)
  • Ducati Streetfighter V4S (2025–2026)
  • Ducati Streetfighter V4 SP (2025–2026)
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08 · Paddock

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