| OEM | OEM | Description | Used on |
| 2559-46 | 38705-46 | Hand lever bracket | 1946 to 1948 |
| 2559-49 | 38705-49 | Hand lever bracket | 1949 & 1950 |
| 25590-37 | 660-37A | Cam gear cover bushing | 1937 to 1952 --45" twins, 1953 & 1954--Servi-Cars, 1937 to 1948--74" & 80" side valves |
| 25591-37 | 660-37D | Cam gear cover bushing | 1937 to 1948--74" & 80" side valves |
| 25593-37 | 660-37E | Cam cover gear shaft bushing | 37 to 57--all W & G Models |
| 25595-37 | 660-37 | Cam gear cover bushing | 37 to 57--all W & G Models |
| 25597-36 | 660-36 | Crankcase cam gear bushing | 36 to 53-0HV |
| 25599-37 | 661-37 | Crankcase cam gear bushing | 1937 to 1948--74" & 80" side valves |
| 256 | | ROLL PIN, 7/64 dia. x 1/2 Ig | |
| 256-29M | | Piston complete with rings, .060" O.S. | 1929 to 1952--45" twins, 1953 & 1954--Servi-Cars |
| 256-36A | 22141-36 | Piston with rings and pin (High Compression) Standard size | 1936 to 1947--61" OHV |
| 256-36C | 22142-36 | .005" O.S. | 1936 to 1947--61" OHV |
| 256-36D | 22143-36 | .010" O.S. | 1936 to 1947--61" OHV |
| 256-36E | 22144-36 | .020" O.S. | 1936 to 1947--61" OHV |
| 256-36F | 22145-36 | .030" O.S. | 1936 to 1947--61" OHV |
| 256-36G | 22146-36 | .040" O.S. | 1936 to 1947--61" OHV |
| 256-36H | 22147-36 | .050" O.S. | 1936 to 1947--61" OHV |
| 256-36JA | 22148-36 | .060" O.S. | 1936 to 1947--61" OHV |
| 256-36KA | 22149-36 | .070" O.S. | 1936 to 1947--61" OHV |
| 256-37 | 22216-37 | Piston with rings and pin -Standard size | 1937 to 1948-74" side valves |
| 256-37C | 22217-37 | .005" 0.S. | 1937 to 1948--74" side valves |
| 256-37D | 22218-37 | Piston complete with rings, .010" 0.S. | 1937 to 1948--74" side valves |
| 256-37E | 22219-37 | Piston complete with rings, .020" 0.S. | 1937 to 1948--74" side valves |
| 256-37F | 22220-37 | Piston complete with rings, .030" 0.S. | 1937 to 1948--74" side valves |
| 256-37G | 22221-37 | Piston complete with rings, .040" 0.S. | 1937 to 1948--74" side valves |
| 256-37H | 22222-37 | Piston complete with rings, .050" 0.S. | 1937 to 1948--74" side valves |
| 256-37JA | 22223-37 | .060" O.S. piston | 1937 to 1948-74 |
| 256-41 | 22101-41 | Piston with rings and pin, (High Compression) Standard size | 1941 to 1947--74" OHV |
| 256-41C | 22102-41 | Piston with rings and pin - .005" O.S. | 1941 to 1947--74 |
| 256-41D | 22103-41 | .005" O.S. | 1953 & 1954--OHV |
| 256-41E | 22104-41 | .020" O.S. | 1941 to 1947--74" OHV |
| 256-41F | 22105-41 | .030" O.S. | 1941 to 1947--74" OHV |
| 256-41G | 22106-41 | .040" O.S. | 1941 to 1947--74" OHV |
| 256-41H | 22107-41 | Piston and rings assembly - .060" O.S. | 1941 to 1947--74 |
| 256-41JA | 22108-41 | Piston and rings assembly - .060" O.S. | 1941 to 1947--74 |
| 256-41KA | 22109-41 | .070" O.S. | 1941 to 1947--74" OHV |
| 256-48A | 22182-48 | Pistons with rings and pin, (High Compression) Standard size | 1948 to 1952--61" OHV |
| 256-48C | 22183-48 | .005" piston O.S. | 1948 to 1952--61" OHV |
| 256-48D | 22184-48 | .010" piston O.S. | 1948 to 1952--61" OHV |
| 256-48E | 22185-48 | .020" piston 0.S. | 1948 to 1952--61" OHV |
| 256-48F | 22186-48 | .030. piston O.S. | 1948 to 1952--61" OHV |
| 256-48G | 22187-48 | .040" piston 0.S. | 1948 to 1952--61" OHV |
| 256-48H | 22188-48 | .060" piston 0.S. | 1948 to 1952--61" OHV |
| 256-48JA | 22189-48 | .060" piston 0.S. | 1948 to 1952--61" OHV |
| 256-48KA | 22190-48 | .070" piston 0.S. | 1948 to 1952--61" OHV |
| 256-KA | 22224-37 | Piston complete with rings, .070" 0.S. | 1937 to 1948--74" side valves |
| 2560-41 | 38670-41 | Control coil bracket | 1941 to 1950 |
| 25601-37 | 661-37A | Crankcase cam gear bushing | |
| 25601-37A | | Crankcase cam gear bushing | 37 to 57--all W & G Models |
| 2561-41 | 38710-41 | Bracket clamp | 1941 to 1948 except 1942 & 1943 model WLC |