| OEM | OEM | Description | Used on |
| 2514-33 | 37458-33 | Clutch gear bushing | 1935 to 1940 |
| 2514-41 | 37458-41 | Clutch gear bushing | 1941 to 1950 |
| 2515-41 | 37460-41 | Clutch gear nut | 1941 to 1950 |
| 2515-41A | 37462-41 | Clutch gear nut lock washer | 1941 to 1950 |
| 2516-26A | | Mainshaft spacer, set ( .095" - .135") | DL, RL, WL, Servi-car 1929-1940. Singles 1926-1934. |
| | | Part 2516-26A (Mainshaft spacer, set ( .095" - .135")) consists of: | |
| | | 2516-26B: Set of mainshaft spacers .90" | |
| | | 2516-26C: Mainshaft spacer (.095") | |
| | | 2516-26D: Mainshaft spacer (.100") | |
| | | 2516-26E: Mainshaft spacer (.105") | |
| | | 2516-26F: Mainshaft spacer ( .110") | |
| | | 2516-26G: Mainshaft spacer (.115") | |
| | | 2516-26H: Set of mainshaft spacers .120" | |
| | | 2516-26JA: Mainshaft spacer (.125") | |
| 2516-26B | | Set of mainshaft spacers .90" | 1929 to 1940 |
| 2516-26C | | Mainshaft spacer (.095") | WL, Servi-car 1929-1940. |
| 2516-26D | | Mainshaft spacer (.100") | WL, Servi-car 1929-1940. |
| 2516-26E | | Mainshaft spacer (.105") | DL, RL, WL, Servi-car 1929-1940. Singles 1926-1934. |
| 2516-26F | | Mainshaft spacer ( .110") | WL, Servi-car 1929-1940. |
| 2516-26G | | Mainshaft spacer (.115") | WL, Servi-car 1929-1940. |
| 2516-26H | | Set of mainshaft spacers .120" | 1929 to 1940 |
| 2516-26JA | | Mainshaft spacer (.125") | DL, RL, WL, Servi-car 1929-1940. Singles 1926-1934. |
| 2516-26KA | | Set of mainshaft spacers .130" | 1929 to 1940 |
| 2516-26LA | | Mainshaft spacer (.135") | DL, RL, WL, Servi-car 1929-1940. Singles 1926-1934. |
| 2516-26MA | | Set of mainshaft spacers .140" | 1929 to 1940 |
| 2516-41A | 35380-41 | Set of mainshaft spacers | 1941 to 1950 |
| | | Part 2516-41A (Set of mainshaft spacers) consists of: | |
| | | 2516-41B: Set of mainshaft spacers .075" | |
| | | 2516-41C: Set of mainshaft spacers .083" | |
| | | 2516-41D: Set of mainshaft spacers .088" | |
| | | 2516-41E: Set of mainshaft spacers .093" | |
| | | 2516-41F: Set of mainshaft spacers .098" | |
| | | 2516-41G: Set of mainshaft spacers .103" | |
| | | 2516-41H: Set of mainshaft spacers .108" | |
| | | 2516-41JA: Set of mainshaft spacers .113" | |
| 2516-41B | 35384-41 | Set of mainshaft spacers .075" | 1941 to 1950 |
| 2516-41C | 35385-41 | Set of mainshaft spacers .083" | 1941 to 1950 |
| 2516-41D | 35386-41 | Set of mainshaft spacers .088" | 1941 to 1950 |
| 2516-41E | 35387-41 | Set of mainshaft spacers .093" | 1941 to 1950 |
| 2516-41F | 35388-41 | Set of mainshaft spacers .098" | 1941 to 1950 |
| 2516-41G | 35389-41 | Set of mainshaft spacers .103" | 1941 to 1950 |
| 2516-41H | 35390-41 | Set of mainshaft spacers .108" | 1941 to 1950 |
| 2516-41JA | | Set of mainshaft spacers .113" | 1941 to 1950 |
| 2518-33 | | Clutch gear roller bearing race | 1935 to 1940 |
| 2518-41 | 37474-41 | Left bearing outer race | 1941 to 1950 |
| 2520-33 | | Clutch gear roller bearing thrust washer | RL, WL, Servi-car 1935-1940. Reverse 1933-1934. |
| 2520-41 | 37480-41 | Clutch gear roller bearing trust washer | 1936 to 1940 |
| 2520-41A | 37482-41 | Clutch gear roller bearing retainer washer | 1941 to 1950 |
| 25201-37 | 584-37A | Gear cover only | 37 to 57--all W & G models |
| 25208-37 | 584-37 | Gear cover only | 1937 to 1948--74" & 80" side valves |
| 2521-33 | | Thrust bearing cpt. | 1935 to 1940 |
| 2521-41 | 37467-41 | Thrust bearing cpt. | 1941 to 1950 |
| 25214-66 | | Gear cover | 1958 to 1962--FL, FLH |
| 25216-36 | 584-36 | Gear cover only | 1936 to 1947--OHV |
| 25216-48 | 584-48 | Gear cover only | 48 to 53--OHV |
| 25216-54 | | Gear cover only | 54 to 57-74" OHV |
| 25218-63 | | Gear cover oil passage bolt | |
| 2522-33 | | Thrust bearing & bearing race | RL, WL, Servi-car 1935-1940. Reverse 1933-1934. |
| 2522-41 | 37477-41 | Thrust bearing race | 1941 to 1950 |
| 25225-36 | 598-36 | Cover gasket | 1936 to 1954--OHV |
| 25225-36C | | Gasket, gear cover | 41 to 69--FL, FLH |
| 25226-37 | 598-37A | Gear cover gasket | 1940 to 1952--45" twins, aluminum heads, 1953 & 1954--Servi-Cars, 1936 to 1951 - -45" twins, iron head |
| 25227-37 | 598-37 | Gear cover gasket | 1936 to 1948-74" & 80" side valves |
| 25235-36 | 3615-36 | Crankcase oil tank vent tube nipple | 36 to 57--all W & G models |
| 2524-36 | | Oil seal | WL, Servi-car 1936-1940. |
| 25256-38 | | Oil pump cover gasket | 1936 to 1947--OHV |
| 25275-36 | 585-36 | Breather screen | 36 to 57--OHV |