| OEM | OEM | Description | Used on |
| 18222-48 | 171-48 | Lower spring collar (4) | 1948 to 1954--OHV |
| 18223-27 | | Upper spring collar spacer (4) | 1937 to 1948--74" & 80" side valves |
| 18223-37 | 171-37 | Upper spring collar spacer (4) | 1937 to 1948-74" side valves |
| 18228-30 | 172-30 | Valve key (4) | 1937 to 1948--74" & 80" side valves, 1949 to 1952 --45" twins, 1953 & 1954--Servi-Cars |
| 18228-36 | 172-36 | Valve key | 36 to 57-OHV |
| 18228-52 | | Exhaust valve collar key | Later 52 to 57 -- OHV |
| 18234-52 | | Exhaust valve stem cap (2) | Later 52 to 57-OHV |
| 18235-31 | 173-31A | Valve spring cover kit | 31 to 57-all W & G models |
| | | Part 18235-31 (Valve spring cover kit) consists of: | |
| | | 18198-38: Valve guide oil seal | |
| | | 18237-51: Upper valve spring cover | |
| | | 18239-41: Upper valve spring cover | |
| | | 18255-31: Lower valve spring cover | |
| | | 18260-29: Valve cover packing | |
| | | 18630-36: Valve cover and guide gasket | |
| 18236-39 | 174-39A | Valve spring cover kit | 1939 to 1948-74" & 80" side valves |
| | | Part 18236-39 (Valve spring cover kit) consists of: | |
| | | 18198-38: Valve guide oil seal | |
| | | 18238-39: Valve spring cover, upper | |
| | | 18245-39: Upper cover cork washer | |
| | | 18246-39: Upper cover cork washer retainer | |
| | | 18247-39: Valve spring cover spring | |
| | | 18248-39: Valve spring cover spring lower washer | |
| | | 18254-39: Lower valve spring cover (outside) | |
| | | 18256-39: Lower valve spring cover (inside) | |
| | | 18257-39: Lower cover washer, cork | |
| | | 18258-39: Cork washer retainer | |
| | | 18259-39: Lower cover asbestos gasket | |
| 18237-51 | | Upper valve spring cover | 1931 to 1952--45" twins, 1953 & 1954--Servi-Cars |
| 18238-39 | 173-39 | Valve spring cover, upper | 1939 to 1948--74" & 80" side valves |
| 18239-41 | 173-41 | Upper valve spring cover | 31 to 57-all W & G models |
| 18245-39 | 173-39A | Upper cover cork washer | 1936 to 1948-74" & 80" side valves |
| 18246-39 | 173-39B | Upper cover cork washer retainer | 1939 to 1948--74" & 80" side valves |
| 18247-39 | 173-39C | Valve spring cover spring | 1939 to 1948--74" & 80" side valves |
| 18248-39 | 173-39D | Valve spring cover spring lower washer | 1939 to 1948--74" & 80" side valves |
| 1825 | | Locknut, 7/16-20 (2) | |
| 18254-39 | 175-39 | Lower valve spring cover (outside) | 1939 to 1948--74" & 80" side valves |
| 18255-31 | 174-31 | Lower valve spring cover | 31 to 57-all W & G models |
| 18256-37 | | Valve spring cover oil seal (6) | 1937 to 1947--OHV |
| 18256-39 | 174-39 | Lower valve spring cover (inside) | 1939 to 1948--74" & 80" side valves |
| 18257-39 | 175-39A | Lower cover washer, cork | 1939 to 1948-74" & 80" side valves |
| 18258-39 | 175-39B | Cork washer retainer | 1939 to 1948--74" & 80" side valves |
| 18259-39 | 175-39C | Lower cover asbestos gasket | 1936 to 1948-74" & 80" side valves |
| 18260-29 | 175-29 | Valve cover packing | 1931 to 1952--45" twins, 1953 & 1954--Servi-Cars |
| 18260-39 | | Valve cover packing | 1936 to 1951 - -45" twins, iron head |
| 18261-30 | | Valve cover packing | 1936 to 1948-74" & 80" side valves |
| 18265-37 | 176-37 | Valve spring cover oil seal | 1936 to 1947--OHV |
| 18370-38 | | Tappet screw nut | 1936 to 1947--OHV, 1949 to 1952--OHV |
| 18490-29 | 200-29 | Tappet with screw & nut | 30 to 48-all sidevalves, 49 to 57-WL & G |
| 18491-36 | 200-36 | Intake tappet cpt. (2) | 1936 to 1947--OHV |
| 18492-48 | 200-48 | Tappet complete (4) | 48 to 52-OHV |
| 18493-36 | 201-36 | Exhaust tappet cpt. (2) | 1936 to 1947--OHV |
| 185-41M | | Collar, valve guide, (Supplied on spare cylinders only) | |
| 18515-40 | 200-40 | tappet with roller | |
| 18521-47 | 202-47 | Tappet needle roller (100) | 47 to 57-OHV |
| 18522-53 | | Tappet & roller | 53 to 57-OHV |
| 18522-53A | | TAPPET, with roller (2) | 53 to 65--FL, FLH |
| 18529-55 | | Tappet plug (4) | 53 to 57-OHV |
| 18534-29 | 208-29A | Tappet roller kit (4 used), Includes: 1-roller, 1-roller race, 1-roller pin, 25 | 30 to 52-all models, 53 to 57-G |
| 18534-29A | | KIT, tappet roller (2) | 41 to 65--FL. FLH |
| 18555-36 | 221-36A | Tappet screw with nut (4) | 36 to 47-OHV, 49 to 52-OHV |
| | | Part 18555-36 (Tappet screw with nut (4)) consists of: | |
| | | 18370-38: Tappet screw nut | |
| | | 18565-38: Tappet screw | |
| 18555-48 | 221-48 | Tappet screw, with nut (4) | 1948--OHV |
| | | Part 18555-48 (Tappet screw, with nut (4)) consists of: | |
| | | 18565-36: Tappet screw | |
| | | 18570-48: Tappet screw nut | |
| 18556-40 | 221-40A | Tappet screw with nut | 40 to 48, 49 to 57-WL & G |
| | | Part 18556-40 (Tappet screw with nut) consists of: | |
| | | 18566-40: Tappet screw | |
| | | 18570-38: Tappet screw nut | |
| 18556-53 | | Tappet adjusting screw | 53 to 56--OHV |
| 18556-57 | | Tappet adjusting screw | 1957--OHV |
| 18565-36 | | Tappet screw | 36 to 47-OHV, 48 to 52-OHV |
| 18565-38 | | Tappet screw | 1936 to 1947--OHV, 1949 to 1952--OHV |
| 18566-40 | 221-40 | Tappet screw | 40 to 48, 49 to 57-WL & G |
| 18570-38 | 223-38 | Tappet screw nut | 40 to 48, 49 to 57-WL & G, 36 to 47-OHV, 49 to 52-OHV |