LighTech carbon alternator cover gloss finish Yamaha YZF-R6 CARY9940
02 · Data & docs

The facts.

Technical data
BrandLighTech
Part numberCARY9940
MaterialAutoclave-cured carbon fibre
FinishHigh gloss
ComponentAlternator cover
FitmentYamaha YZF-R6 RJ11, RJ15, RJ27 (2006–2026)
InstallationDirect OEM replacement using supplied hardware or silicone mounting points
MaintenanceClean with pH-neutral cleaner
DescriptionThe whole story▼

Few components marry form and function as elegantly as the LighTech carbon alternator cover for the Yamaha YZF-R6. Autoclave-cured from premium-grade carbon fibre and finished in a deep, mirror-like gloss, this cover carries the visual DNA of the factory race paddock while providing genuine protection for one of the engine's most vulnerable components — across every RJ11, RJ15 and RJ27 model produced from 2006 through to 2026.

Key Features

  • Precision fit for Yamaha YZF-R6 RJ11, RJ15 and RJ27, model years 2006–2026
  • Autoclave-manufactured carbon fibre construction — ultra-light yet exceptionally rigid
  • High-gloss finish that captures the heritage and aesthetic of Italian race-focused engineering
  • Shields the alternator from road debris, stone chips, mud and mechanical impact
  • Significant weight reduction over the standard OEM plastic cover for a modest but real performance gain
  • Straightforward installation using the supplied hardware or silicone mounting points
  • Easy to maintain — clean with a pH-neutral product to preserve the gloss lacquer long-term

Design, Finish and Heritage

LighTech has spent decades supplying the WorldSBK and circuit paddocks, and that lineage is visible in every layer of this cover. The gloss finish is not a cosmetic afterthought — it is a multi-stage lacquer applied over a tightly woven carbon weave that is autoclave-cured under controlled heat and pressure. The result is a surface that looks purposeful whether the bike is parked in the pit lane or leaned over at the apex of a favourite road. The weave pattern itself is a mark of quality; it reflects how seriously LighTech takes even the smallest add-on part.

Performance and Protection

The OEM alternator cover on the YZF-R6 is functional but unremarkable in both weight and resilience. LighTech's carbon replacement sheds meaningful grams from the engine casing area while offering superior resistance to stone chips and low-speed contact. For club racers and trackday regulars, protecting the alternator housing from a gravel-trap scuff or a dropped-bike scenario is sound thinking; for road riders, the cover keeps road grime and moisture away from the seam, extending the service life of the underlying seals.

Fitment and Compatibility

This alternator cover is engineered specifically for the following Yamaha YZF-R6 variants:

  • Yamaha YZF-R6 RJ11 (2006–2007)
  • Yamaha YZF-R6 RJ15 (2008–2009)
  • Yamaha YZF-R6 RJ27 (2008–2016 and subsequent homologated model years through 2026)

Always verify your frame code before ordering. Installation requires no modification and uses the standard mounting points — fitting is achievable with basic workshop tools in a matter of minutes.

Specifications

  • Brand: LighTech
  • Part number: CARY9940
  • Material: Autoclave-cured carbon fibre
  • Finish: High gloss
  • Component: Alternator cover
  • Fitment: Yamaha YZF-R6 RJ11, RJ15, RJ27 (2006–2026)
  • Installation: Direct OEM replacement, supplied hardware or silicone mounting points
  • Maintenance: Clean with pH-neutral cleaner
FitmentWhich bikes this fits▼
  • Yamaha YZF-R6 RJ11, RJ15, RJ27 (2006–2026)
07 · Support

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