Lang Tools. Cylinder Sleeve Hold Downs. Feature 3/4 hexagon with a small cylinder protruding down to catch the cylinder stud. Specialty nuts are used to hold down cylinder sleeves during service. For Evolution Big Twin, Sportster and Twin Cam w/ 3/8in.

Brand: Lang Tools
Manufacturer Part Number: 446
Part Type: Nut
UPC: 077769004464
MPN: 446
Make: Harley Davidson
Model: FLH Electra Glide Heritage, FLHR Road King, FLHR