K-Tech fork oil seal and dust cap kit for Yamaha YZF-R3 2019–2026, part 734.24.41
02 · Data & docs

The facts.

Technical data
BrandK-Tech
Part Number734.24.41
FitmentYamaha YZF-R3 (2019–2026)
Seal ManufacturerNOK
Inner Diameter37.00 mm
Outer Diameter49.00 mm
Height (1)8.00 mm
Height (2)9.50 mm
Kit Contents2x oil seals, 2x dust caps
DescriptionThe whole story

When track sessions and hard road riding demand that your forks perform without compromise, the K-Tech Fork Oil Seal and Dust Cap Kit for the Yamaha YZF-R3 (2019–2026) delivers the precision fit and long-term reliability your suspension deserves. Manufactured by NOK — the global benchmark for suspension seals — every component in this kit is engineered to exact tolerances, keeping oil where it belongs and contaminants firmly out.

Key Features

  • NOK-manufactured oil seals: the industry standard for OEM and performance suspension seals, trusted by race teams worldwide
  • Exact fitment for Yamaha YZF-R3 model years 2019 to 2026 — no modification or shimming required
  • Oil seals prevent fork fluid loss, preserving damping consistency lap after lap
  • Dust caps shield the fork stanchions from grit, mud, and moisture ingress on track and road alike
  • Precision-machined dimensions (37.00 mm inner diameter, 49.00 mm outer diameter) ensure a positive, leak-free seat in the fork leg
  • Kit supplies both fork legs in a single purchase — two oil seals and two dust caps

Performance You Can Feel

A weeping fork seal is not merely a maintenance nuisance — on track it progressively corrupts damping characteristics, introduces unpredictable brake dive, and risks contaminating the front brake disc. The K-Tech 734.24.41 kit addresses this at source. NOK seals are specified by top suspension manufacturers precisely because their lip geometry and compound formulation maintain a consistent sealing surface across a wide temperature range, from cold morning warm-up laps to sustained back-to-back sessions in high ambient temperatures.

The matched dust caps complete the defence, forming a first barrier that prevents abrasive particles from ever reaching the seal lip. The result is a fork that stays in its set-up window longer, giving you the confidence to repeat corner-entry references consistently.

Build Quality & Materials

K-Tech sources seals exclusively from NOK, a manufacturer whose product line is found inside suspension units from the world's leading race and road brands. The dimensional specification — 37.00 mm inner diameter, 49.00 mm outer diameter, heights of 8.00 mm and 9.50 mm — is verified against the Yamaha YZF-R3 fork tube specification to ensure zero compromise on sealing pressure or installation clearance.

Installation Note

Installation requires specialist fork tools and suspension knowledge. K-Tech recommend that this kit is fitted exclusively by an authorised K-Tech Service Centre to guarantee correct assembly and to protect the integrity of the fork internals.

Fitment & Compatibility

This kit fits the following model:

  • Yamaha YZF-R3 — model years 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026

Specifications

Inner Diameter 37.00 mm
Outer Diameter 49.00 mm
Height (1) 8.00 mm
Height (2) 9.50 mm
Seal Manufacturer NOK
Part Number 734.24.41
Fitment Yamaha YZF-R3 (2019–2026)
Kit Contents 2x oil seals, 2x dust caps
What's includedEverything in the box
  • 2x oil seals (fork oil seals)
  • 2x dust caps
FitmentWhich bikes this fits
  • Yamaha YZF-R3 (2019–2026)
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08 · Paddock

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