JetPrime JP KS KA024 kill switch for Kawasaki Ninja 400 — view 1 360° — drag me
Approximately 350 g
02 · Data & docs

The facts.

Technical data
BrandJetPrime
Part numberJP KS KA024 (black)
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
FitmentKawasaki Ninja 400 (2018–2024)
Road approvalNone — closed-circuit and race use only
DescriptionThe whole story

The Ninja 400 is the bike that fills club-racing grids, and almost none of the ones on those grids still have a key in them. Between scrutineering, quick turnarounds and the simple fact that a race bike does not need a lock, the ignition barrel is dead weight. JP KS KA024 is the switch that replaces it.

Key Features

  • Purpose-made for the Kawasaki Ninja 400, 2018 through 2024
  • Removes the ignition block, barrel and key entirely
  • Around 350 g saved — a meaningful figure on a bike this light
  • Ergal billet housing with an IP69K-sealed push button
  • Key Box supplied for machines fitted with an immobiliser
  • Plug-and-play: the factory connector plugs straight into the switch

Made for Club Racing

On a 400 the arithmetic is different. Three hundred and fifty grams is a larger share of the total, and it comes off the very top of the machine, where it costs the most in steering effort. Add the practical side — no key to lose in a paddock, no barrel to fumble with on a hot restart — and the switch earns its place before you get to the way it looks.

Fitment and Compatibility

  • Kawasaki Ninja 400 (2018–2024)

Road Approval

None. This switch removes the factory ignition lock and is sold for closed-circuit and competition use only. A road-registered Ninja 400 fitted with it is no longer compliant.

In the Box and On the Bike

The kit is the switch assembly, the Key Box housing and the connector harness — everything the swap needs. On a Ninja 400 the whole job is straightforward enough to do the evening before a track day: the original barrel unbolts, the switch bolts on in its place, and the loom plug transfers across. Nothing is cut, so a bike that goes back to road use in the winter can be returned to standard.

Specifications

  • Brand: JetPrime
  • Part number: JP KS KA024 (black)
  • Function: ignition block replacement kill switch button
  • Material: solid-machined Ergal (7075 aluminium)
  • Button protection: IP69K
  • Weight saved: approximately 350 g
  • Supplied with: Key Box for the original key and immobiliser antenna
  • Installation: plug-and-play, fully reversible
  • Fitment: Kawasaki Ninja 400 (2018–2024)
  • Road approval: none — closed-circuit and race use only
FitmentWhich bikes this fits
  • Kawasaki Ninja 400 (2018–2024)
07 · Support

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08 · Paddock

Before you go.

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