
The facts.
| Part number | FSK-021 |
|---|---|
| Manufacturer | NOK |
| Inner diameter | 55.00 mm |
| Outer diameter | 63.00 mm |
| Fitment | Ducati Panigale V4 R (2019–2021) |
| Kit contents | 2x oil seals, 2x dust caps |
| Application | Front fork seal replacement |
DescriptionThe whole story▼
Correct fork sealing is a safety-critical foundation of any serious suspension setup. This K-Tech fork oil seal and dust cap kit for the Ducati Panigale V4 R (2019–2021) is manufactured by NOK — the original-equipment seal supplier trusted by every major Japanese suspension manufacturer — delivering the same exacting tolerances and material integrity as the factory fitment, whether you are running road miles or pushing hard on track.
Key Features
- Manufactured by NOK, the benchmark OE supplier for precision fork seals across the global suspension industry
- Direct replacement for original Ducati Panigale V4 R fork seals — no modification required
- High-performance oil seals maintain positive hydraulic pressure under extreme thermal and dynamic load
- Dust caps shield the fork internals from dirt, moisture and abrasive contamination, prolonging seal life
- Engineered to perform reliably in both demanding road use and full-intensity track conditions
- Supplied as a complete kit: two oil seals and two dust caps for a full fork rebuild
Build Quality & Performance
NOK's seal compounds are formulated for long service life under repeated thermal cycling, aggressive cornering loads and the high fork speeds generated by the Panigale V4 R's Ohlins NIX30 front suspension. The precise 55.00 mm inner diameter and 63.00 mm outer diameter ensure a consistent, leak-free interface with the fork tube and lower leg — eliminating the oil weeping that can compromise damping feel and contaminate front brake components.
Road & Track Use
Whether the V4 R is used as an exclusive track weapon or a high-specification road machine, fork seal integrity directly affects how consistently the suspension responds. Worn or degraded seals allow damping oil to escape, causing progressive loss of front-end feel and — critically — creating a risk of oil contamination on the brake disc. Replacing seals with OE-grade NOK components restores full suspension function and removes that safety risk at source.
Fitment & Compatibility
This kit is designed exclusively for the R variant of the Ducati Panigale V4. It is not suitable for the standard V4, V4 S or V4 SP — always confirm you are working on an R model before ordering.
- Ducati Panigale V4 R — 2019, 2020, 2021
Installation Note
Fork seal installation requires specialist tools and technical knowledge. K-Tech recommend that this kit is fitted by an authorised K-Tech Service Centre to ensure correct seating, optimal function and continued safety.
Specifications
| Attribute | Detail |
|---|---|
| Part number | FSK-021 |
| Manufacturer | NOK |
| Inner diameter | 55.00 mm |
| Outer diameter | 63.00 mm |
| Fitment | Ducati Panigale V4 R (2019–2021) |
| Kit contents | 2x oil seals, 2x dust caps |
| Application | Front fork rebuild / seal replacement |
What's includedEverything in the box▼
- 2x fork oil seals
- 2x dust caps
FitmentWhich bikes this fits▼
- Ducati Panigale V4 R (2019–2021)
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