TOP END KIT OEM STYLE 66.42/+0.50 6.6:1 YAM 156-47240 1993 Arctic Cat EXT 550

1993 Arctic Cat EXT 550 Mountain Cat (EFI)

Sourced from NTN

2004 KTM 105 SX

Handmade in the USA

2005 KTM 125 Exc

TOP END KIT OEM STYLE 66.42/+0.50 6.6:1 YAM 156-47240 1993 Arctic Cat EXT 550Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit MOS2 (Teflon Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have