Kawasaki KX250F (2009–2016) White Diamond® Cylinder Head Service Kit – Kibblewhite
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
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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)
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
