These quality solid lifter tappets fit 1936–'47 Harley-Davidson® knucklehead engines and S&S KN-Series engines for 1936–'47 chassis. Tappet assemblies include adjusting screw and locking nut. Note that two different tappets are used in each engine. Tappets for the intake valves are slightly shorter than tappets for the exhaust valves. Available individually and as a set of four, in standard and +.005" diameter.
Standard Set. . . .106-1819*
.005" Oversize Set. . . .106-1820
*S&S 106-1819 is a direct replacement for Harley-Davidson® part number 18491-36.
Note: All reference to H-D® part numbers is for identification purposes only. We in no way are implying that any of S&S Cycle's products are original equipment parts or that they are equivalent to the corresponding H-D® part number shown.