| OEM | OEM | Description | Used on |
| 63511-38 | | Motor oil pump feed line | 38 to 57-61" & 74" OHV |
| 63512-38 | | Motor oil pump feed line | 1938 to 1948--74" & 80" side valves |
| 63512-63 | | Return line upper tube | FL, FLH 1963-1964, side mounted. Panhead. Duo Glide. |
| 63515-48 | | Oil tank vent line | 1948 to 1954--OHV--Two way radio |
| 63524-50 | | Oil line connector (special) | 48 to 57-61", 74" & 80" twins |
| 63525-50 | | Oil line connector (40 to 49 only) | 48 to 57-61", 74" & 80" twins |
| 63525-67 | | Oil return line elbow | Sportster, XLCH 1970-76. |
| 63526-40 | | Rigid oil filter fitting set | FL, FLH rigid frame 1940-1957. Knucklehead. Panhead. |
| 63526-50 | | Oil line connector | 48 to 57-61", 74" & 80" twins |
| 63526-54 | | Vent line connector | KH late 1954-1956. Sportster, XL, XLH 1957-1959. |
| 63526-57 | | Cylinder head feed / connector vent line oil line fitting | XLCR. FL, FLH 1966-1984. |
| 63526-58 | | Swing arm oil filter fitting set | FL, FLH swing arm frame 1958-1964. Panhead. Duo Glide. |
| 63527-50 | | Oil line nut | 48 to 57-61", 74" & 80" twins |
| 63527-52 | | Feed line nut | K-model 1952-1953. Sportster, KH, XL, XLH 1954-early 61. |
| 63529-50 | | Oil line sleeve (rubber) | 48 to 57-61", 74" & 80" twins |
| 63529-57 | | Oil line rubber sleeve 3/16" | FL, FLH, 1963-1984. |
| 63530-15 | | Oil tank vent pipe nipple nut (oil pipe nipple) | 1950 to 1957--OHV |
| 63530-43 | | Oil pump return pipe nut for oil filter | 1940 to 1949--61", 74" & 80" twins |
| 63533-15 | | Nipple for oil tank vent line on big twins & oil pump feed line on 45" & OHV | 1936 to 1957 -- all models |
| 63533-41 | | Oil line fitting for 3/8" hose | Panhead. Knucklehead. Shovelhead |
| 63533-65 | | Fitting, oiler return line hose | 65--FL, FLH |
| 63540-62 | | Oil line hose fitting | 1965 to 1967 -- FL, FLH |
| 63541-70 | | TEE, rear chain oiler | 70 to * -- FL, FLH, FX, FXS |
| 63542-63 | | Rocker arm oil line elbow | FL, FLH 1963-1965. Panhead. Duo Glide. |
| 63549-65 | | BRACKET, oil hose | 65 to * -- FL, FLH, FX, FXS |
| 63561-65 | | CHAIN HOUSING VENT KIT | 65 to * -- FL, FLH |
| 6357-25 | 88172-25 | Spring "U" bolt | 37 to 57-61",74"& 80" twins, sidecars |
| 63570-37 | | Oil tank vent line | 1937 to 1957--WL & G |
| 63571-38 | | Oil tank vent line | 1938 to 1948--74" & 80" side valves |
| 63572-38 | | Oil tank vent line | 38 to 57-61" & 74" OHV |
| 63572-58 | | Vent | OHV 1958-1964. Panhead. Duo Glide. |
| 63577-36 | | Nipple for oil tank vent line | 1937 to 1957--WL & G |
| 63578-36 | | Nipple bolt for oil tank vent line | 1937 to 1957--WL & G |
| 63578-52 | | Fitting, vent hose | 65 & Early 66--FL, FLH |
| 63580-15 | | Nipple for gas line (rear end) & vent & rocker arm oil lines | 1915 to 1957--WL & G |
| 63580-66A | | TEE, vent hose | 66 to * -- FL, FLH, FX, FXS |
| 63587-54 | | Rear chain oiler kit | 54 to 57-74" OHV (used with oiler filter) |
| 63588-54 | | Rear chain oiler kit | 54 to 57-74" OHV (not used with oil filter) |
| 63590-41 | | Rear chain oiler line | 1941 to 1957--Servi-Cars |
| 63591-62 | | Rear chain oiler kit | FL, FLH 1954-1964. Panhead. Duo Glide. |
| 63592-54 | | Rear chain oiler pipe | 54 to 57-74 OHV |
| 63592-58 | | Rear chain oiler pipe | FL, FLH 1958-1962, 1965-1967. Panhead. |
| 63592-68 | | HOSE, rear chain oiler | 68 to * -- FL, FLH, FX, FXS |
| 63597-38 | | Rear chain oiler line bushing | 1938 to 1954--Servi-Cars |
| 63599-54 | | Rear chain oiler pipe clamp | 54 to 57-74" OHV |
| 636-30 | | Stud, idling gear | |
| 636-30A | 25788-30 | Idler gear stud assembly | 1932 to 1950 |
| | | Part 636-30A (Idler gear stud assembly) consists of: | |
| | | 462-11: Idler gear stud fibre washer | |
| | | 644-30: Idler gear stud screw | |
| | | 658-15: Idler gear stud spring ring | |
| 636-36A | 25794-36 | Idler gear stud screw | 36 to 57--OHV |
| 636-36B | 25791-36 | Idler gear stud assembly | 1936 to 1954--OHV |