K-Tech FSK-007 fork oil seal and dust cap kit for Kawasaki Ninja 400
02 · Data & docs

The facts.

Technical data
BrandK-Tech
Part NumberFSK-007
Seal ManufacturerNOK
Inner Diameter41.00 mm
Outer Diameter54.00 mm
Contents2x oil seals, 2x dust caps
FitmentKawasaki Ninja 400 (2018–2023)
InstallationAuthorised K-Tech Service Centre only
DescriptionThe whole story

Manufactured by NOK, the world-leading authority in sealing technology, this K-Tech fork oil seal and dust cap kit delivers precision-engineered protection for the front fork of the Kawasaki Ninja 400 (2018–2023). Every dimension is held to exacting tolerances, ensuring a leak-free seal that safeguards suspension performance across the full service life of the fork.

Key Features

  • Produced by NOK, the global benchmark for sealing technology — a name trusted by OEM manufacturers and professional race teams worldwide
  • Prevents fork oil loss with a precisely dimensioned oil seal, maintaining correct damping characteristics and rider safety
  • Dust caps shield the fork stanchions from road grit, moisture and contamination, extending the life of the seals and inner tubes
  • Exact-fit dimensions (41.00 mm inner diameter, 54.00 mm outer diameter) ensure a secure installation with no compromise to function
  • Part number FSK-007 guarantees you are ordering the correct component for the 2018–2023 Ninja 400

Quality & Engineering

NOK's sealing compounds and manufacturing processes are held to tolerances that exceed the demands of everyday road riding and track day use alike. The oil seals resist the thermal cycling and pressure fluctuations inherent to high-performance telescopic forks, while the dust caps form a consistent barrier against the fine abrasive particles that accelerate wear on fork stanchions. Together, the two seal types work as a system — keeping oil where it belongs and contamination firmly out.

Installation Note

Installation must be carried out exclusively by an authorised K-Tech Service Centre. Specialist tooling and technical expertise are required to ensure correct seating and to guarantee the safety and optimal function of the fork assembly.

Fitment & Compatibility

This kit is designed and confirmed to fit the following model:

  • Kawasaki Ninja 400 — model years 2018, 2019, 2020, 2021, 2022, 2023

Specifications

Specification Detail
Part Number FSK-007
Inner Diameter 41.00 mm
Outer Diameter 54.00 mm
Seal Manufacturer NOK
Contents 2x oil seals, 2x dust caps
Fitment Kawasaki Ninja 400 (2018–2023)
What's includedEverything in the box
  • 2x oil seals (fork oil seals)
  • 2x dust caps
FitmentWhich bikes this fits
  • Kawasaki Ninja 400 (2018–2023)
07 · Support

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Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

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08 · Paddock

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