Cometic, cylinder head gaskets 3-7/8" bore .060" MLS - 99-17 Twin Cam (excl. 14-16 Twin Cooled). With 3-7/8" bore 95"/103" engines (NU) 903245 CNC laser cut from 6061

CNC laser cut from 6061 T-6 aluminum

OEM style replacement for 17572-99 upper & 17573-99 lower covers

This has no disadvantage in any model year

2001 Harley-Davidson Softail Springer Injected - FXSTS I

Cometic, cylinder head gaskets 3-7/8" bore .060" MLS - 99-17 Twin Cam (excl. 14-16 Twin Cooled). With 3-7/8" bore 95"/103" engines (NU) 903245 CNC laser cut from 6061MLS (Multi Layer Steel). Front & rear gasket for one engine. 3 7 8" (3. 875") fits 88" to 95"(1550cc) big bore conversions and is standard size for 103" OEM H D engines. Will not fit 103" Twin Cooled models. Stock Twin Cam gasket is approx. . 043" thick. MLS (Multi Layer Steel) explained: MLS consists of a top and bottom layer of embossed stainless steel with both side coated with 250C high temperature polymer rubber layer. The inner ring(s) are also