K-Tech Fork Oil Seal & Dust Cap Kit – Yamaha YZF-R6 RJ27 (2017–2026) FSK-019
Prices for Germany include VAT · Shipping calculated at checkout
Inside the EU — no customs duties will apply.
Questions? Just reach out — our team will help you right away.
- Worldwide shipping
- Genuine parts & verified quality
- Personal email support
- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details and have no access to your credit card information.
Manufactured by NOK — one of the world's foremost producers of suspension sealing components — the K-Tech FSK-019 fork oil seal and dust cap kit delivers the highest standard of protection for your Yamaha YZF-R6 RJ27. Correct sealing is a genuine safety-critical function: a weeping fork leg affects damping consistency, contaminates brake components and compromises handling precision. This kit removes that risk with OE-grade materials engineered to K-Tech's exacting fitment tolerances for the 2017–2026 RJ27 chassis.
Key Features
- Safety-critical sealing: prevents fork oil loss that would otherwise degrade damping performance and compromise braking and handling.
- Manufactured by NOK, a globally recognised leader in suspension seals — same supply chain used by professional race teams.
- Precision-dimensioned at 43.00 mm inner diameter and 55.00 mm outer diameter for a perfect press-fit on the RJ27 fork legs.
- Two oil seals effectively block oil migration past the stanchion, preserving fork fluid integrity across extended service intervals.
- Two dust caps form the first line of defence, excluding road grit, moisture and fine particulates before they can reach the oil seal lip.
- Direct K-Tech part number FSK-019 ensures you receive the correct, verified kit — no cross-referencing required.
Build Quality & Engineering
NOK's elastomer compounds are formulated to remain flexible across a wide temperature range, resisting the hardening and micro-cracking that causes lesser seals to weep prematurely. The dust caps are dimensioned to sit flush with the fork lowers, eliminating the gap where grime accumulates and accelerates wear on the seal lip. Together, the two-stage sealing system — dust cap plus oil seal — extends service life and maintains the consistent damping feel that the YZF-R6 RJ27's chassis is built around.
Performance & Safety on Road and Track
On a high-revving, track-focused machine like the YZF-R6 RJ27, suspension integrity is not a comfort issue — it is a safety issue. Oil weeping from the fork seals coats the dust wiper, finds its way onto brake components and introduces an unpredictable variable into braking distances. Fitting a certified, correctly dimensioned seal kit at the recommended service interval is the single most cost-effective way to keep the front end behaving as Yamaha and K-Tech intend. The FSK-019 kit makes that service straightforward and reliable.
Fitment & Compatibility
This kit is engineered exclusively for the following model:
- Yamaha YZF-R6 RJ27 — model years 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Always verify your frame designation and fork inner diameter before installation. Installation must be carried out by an authorised K-Tech Service Centre using the appropriate specialist tooling and technical expertise.
Specifications
| Attribute | Detail |
|---|---|
| Brand | K-Tech |
| Part Number | FSK-019 |
| Seal Manufacturer | NOK |
| Inner Diameter | 43.00 mm |
| Outer Diameter | 55.00 mm |
| Kit Contents | 2x oil seals, 2x dust caps |
| Fitment | Yamaha YZF-R6 RJ27 (2017–2026) |
| Brand | K-Tech |
|---|---|
| Part Number | FSK-019 |
| Seal Manufacturer | NOK |
| Inner Diameter | 43.00 mm |
| Outer Diameter | 55.00 mm |
| Kit Contents | 2x oil seals, 2x dust caps |
| Fitment | Yamaha YZF-R6 RJ27 (2017–2026) |
-
2x fork oil seals (NOK)
-
2x dust caps
No reviews yet.
// K-Tech
K-Tech Fork Oil Seal & Dust Cap Kit – Yamaha YZF-R6 RJ27 (2017–2026) FSK-019

Tech specs
- Brand
- K-Tech
- Part Number
- FSK-019
- Seal Manufacturer
- NOK
- Inner Diameter
- 43.00 mm
- Outer Diameter
- 55.00 mm
- Kit Contents
- 2x oil seals, 2x dust caps
- Fitment
- Yamaha YZF-R6 RJ27 (2017–2026)
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
Shipping & delivery
Estimate your shipping
Get the real shipping cost for this item to your address — the same rates as checkout.