Cometic, cylinder head gasket set. 4.00" .036" MLS - 84-99 EVO B.T.(NU) (S&S & TP 4" BIG BORE) 540054 OEM replacement reference 31471-67A

OEM replacement reference 31471-67A

For replacement parts see 512518 for a replacement gasket and o-ring kit

With smooth rounded edges matching the H-D's flowing lines

CUSTOM SHORT 8 3/4" HIGH

Black metal housing with red light

Cometic, cylinder head gasket set. 4.00" .036" MLS - 84-99 EVO B.T.(NU) (S&S & TP 4" BIG BORE) 540054 OEM replacement reference 31471-67A. 036" thick MLS (Multi Layer Steel). 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 stainless steel. The gasket layers are rivited together, outside the gasket surface, for ease of installation. The outer layers are embossed and both sides coated with a 250C resitant polymer rubber layer. MLS head gaskets eliminate the use of dowel pin o