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ZINC TWO 2 STROKE TOP END MOTORCYCLE ENGINE CYLINDER HEAD ACORN CAP FLANGE NUTS BOLT KIT HONDA CR KAWASAKI KX YAMAHA YZ SUZUKI RM TRX250R ATC250R LT250R LT500R 85 125 250

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$19.99

$ 9 .99 $9.99

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  • Comes with 7 Chrome M8 Tall Acorn Flange Nuts. More that enough for most 2 stroke Dirt Bike or ATV engines.
  • You get 7 Matched 1.5mm thick M8 copper sealing washers. Perfect seal when using "o" rings vs head gasket.
  • Cylinder base nuts can be either 8mm or 10mm. This kit gives you both. This will cover over 99% of all 2-stroke motorcycle and ATV engines. These are also super strong Class 10 nuts that will not strip or round off!
  • Some cylinders and heads use M6 drain bolts to bleed air from coolant. We give you 2 in this kit along with reusable copper drain washers.
  • This universal kit is designed to save big money on purchasing cylinder bolts individually.
  • This kit is an upgrade over OEM. No expense was spared in these high quality aftermarket top end nut kits.
  • Can be used for all Japanese brands such as Yamaha Kawasaki Suzuki & Honda on engines from 60cc up to 500cc. One exception is Kawasaki's KX500 engine that uses a staggering 9 head nuts! If you have engine give us a call and well sort it out no charge.


This 2-stroke cylinder and head install kit fits 60cc through 500cc dirt bike and ATV engines. Comes with: 7 Tall M8-1.25 Chrome Acorn Cap Flange Nuts (15mm depth) 7 M8x17 Copper Sealing Washers (1.5mm thickness) 4 M10-1.25 Flange Nuts and 4 M8-1.25 Flange Nuts in OEM Zinc Finish (Class 10) 2 M6x10-1.0 OEM Black Hex/Phillips Drain Bolts with 2 matching M6x12 Copper Crush Washers Enough to mount your Two Stroke cylinder and head on most any model.