Kawasaki KX250F (2009–2016) White Diamond® Cylinder Head Service Kit – Kibblewhite

Drop-in race-proven performance. The Kibblewhite 40-41520 White Diamond® Cylinder Head Service Kit is the ultimate high-RPM valve train upgrade for your 2009–2016 Kawasaki KX250F — built for motocross, supercross, or vintage racing.

White Diamond® hard-chromed valves flow better and last longer than stock. Paired with C674 manganese bronze guides, titanium retainers, CrSi dual springs, and a complete top-end gasket set, this kit gives you bulletproof reliability and noticeably sharper throttle response — no machining required.

What’s Included • 2 × Intake White Diamond® valves (standard size) • 2 × Exhaust White Diamond® valves (standard size) • 2 × Intake + 2 × Exhaust C674 manganese bronze guides • 2 × Intake + 2 × Exhaust titanium retainers • 4 × CrSi dual valve springs (46 lb seat / 155 lb @ 0.445" lift) • 4 × H.T. steel basewashers • Viton valve stem seals • Complete top-end gasket kit (head, base, exhaust, O-rings, washers)

Key Features • White Diamond® hard-chrome finish – superior flow & extreme durability • C674 bronze guides – excellent heat transfer, easy to ream • CrSi dual springs – rock-solid high-RPM stability • Titanium retainers – lighter weight, perfect valve control • Viton seals – high-temp & oil resistant • 100 % drop-in – no machining or head work needed

Fitment 2009–2016 Kawasaki KX250F (all models)