Manley, valve guide seal set. Viton 4-pk - 84-99 Evo B.T.; 99-04 Twin Cam; 86-03 XL (NU) 901377 Comes in a plastic case

Comes in a plastic case with separate compartments for each size nut

with a full rubber coating

Note: For 91-99 OEM cases the MCS 906636 thrust washer is used

Protection in knuckles of PVC and double skin in the palm of the hand

It's not difficult to determine if a Hastings piston ring set will fit a certain piston

Manley, valve guide seal set. Viton 4-pk - 84-99 Evo B.T.; 99-04 Twin Cam; 86-03 XL (NU) 901377 Comes in a plastic caseWith 4 seals. Comes with with built in spring loaded Viton wipers. Valve stem seals can be used, and are recommended, on all applications. They will help control oil consumption in any type H D engine. Note: Valve seal installation tools are not included and must be purchased separately when required.