Replacement for OEM # 57-4356

It's the easiest way to get a big boost in power

These universal weld-on triangular tabs give you a tough mount with the added comfort of a military-spec rubber grommet

1/4" thick

Aircraft grade aluminum tubing and heat treated steel ends provide maximum durability and long life expectancy

#8301 CHR Complete Stock Hardware Kit - 1940-1947 Harley-Davidson Knucklehead - Chrome Plated Motorcycle Specific_Harley-Davidson Big Twin Replacement for OEM # 57-4356Complete stock hardware kit for Harley Davidson Knuckleheads 1940 1947, chrome plated. Each kit contains all the stock motor nuts, bolts, washers and studs for your motor. The kit includes primary cover screws, lifter base screws, circuit breaker screws, case studs and nuts, timing plug, cam cover screws, cylinder base nuts and washers, oil pump nuts and bolts, transmission side cover nuts and washers, transmission top screws, transmission fill plug,