| OEM | OEM | Description | Used on |
| 37-09C | | Spark plug (No. 3) | 1927 to 1950 |
| 37-09D | | Spark plug (No. 4) | 1927 to 1950 |
| 37-09E | | Spark plug (No. 5) racing | 1927 to 1950 |
| 370-36 | 24015-36 | Shaft nut lock plate (4) | 1936 to 1952-61 |
| 3702-40 | | Front fender less flap (Prime color) | 1940 to 1949--solo; 1940--Servi-cars |
| 3702-40M | | Front fender | WLA appr. 1948 ?? |
| 3703-36 | | Front fender less flap (Prime color) | 1941 to 1949--Servi-cars |
| 37051-36 | 2426-36 | Clutch release lever | 37 to 57-61". 74" & 80" twins |
| 37052-41 | 2426-41 | Clutch release lever | 41 to 57--Servi-cars |
| 37052-44 | 2426-44 | Clutch release lever | 44 to 52--W models |
| 37052-65 | | Release lever (1968 & later - handshift only) | 65 to *--FL, FLH |
| 37067-41 | 2428-41 | Clutch release lever grease nipple | 41 to 57--W & G models |
| 37070-39 | 2436-39 | Clutch release finger | 39 to 57-61", 74" & 80" twins |
| 37070-39A | | Release finger | 1941 to * --FL, FLH |
| 37074-38 | 2430-38 | Release lever stud (finger shaft) | 38 to 57-61", 74" & 80" twins |
| 37074-38A | | Stud, release lever (finger shaft) | 1941 to * --FL, FLH |
| 37076-41 | 2431-41 | Clutch release lever screw | 41 to 57--Servi-cars |
| 37077-44 | 2431-44 | Clutch release lever screw | 44 to 52--W models |
| 37080-41 | 2432-41 | Release lever screw lock washer | 41 to 57--Servi-cars |
| 37081-44 | 2432-44 | Release lever lock plate | 44 to 52--W models |
| 37084-41 | 2432-41A | Release lever spring washer | 41 to 57--W & G models |
| 3710-39 | | Rear fender and braces (Prime color) | 1939 & 1940 |
| 3710-40M | | Mudguard complete, rear | |
| 3710-41 | | Rear fender and braces (Prime color) | 1941 to 1949 |
| 3710-41M | | Mudguard complete, rear | |
| 3710-42M | | Mudguard complete, rear | |
| 3712-39 | | Rear fender hinged end (Prime color) | 1939 to 1949 |
| 3712-40M | | End, rear mudguard | |
| 3712-41M | | End, rear mudguard rear | |
| 3712-42M | | Rear mudguard rear end | WLA 1942-1952. |
| 3715-39 | | Set of fender side strips complete | 1940 to 1949 |
| | | Part 3715-39 (Set of fender side strips complete) consists of: | |
| | | 3761-39: Front fender front end side strip | |
| | | 3761-39A: Front fender rear end side strip - R.H. | |
| | | 3761-39B: Front fender rear end side strip - L.H. | |
| | | 3762-39: Rear fender front end side strip | |
| | | 3762-39A: Rear fender rear end side strip - R.H. | |
| | | 3762-39B: Rear fender rear end side strip - L.H. | |
| | | 3765-39: Fender side strip fastening clip | |
| 3715-40 | | Set of fender top strips and Chevron complete | 1940--except Servi-cars |
| | | Part 3715-40 (Set of fender top strips and Chevron complete) consists of: | |
| | | 3715-40A: Front fender front top strip - 4" | |
| | | 3715-40B: Front fender top center strip - 6-1/2" | |
| | | 3719-40A: Rear fender top center strip | |
| | | 3719-40B: Rear fender top strip | |
| | | 3720-40: Fender chevron | |
| | | 3765-40: Front fender top strip clips | |
| | | 3765-40A: Rear fender top strip clips | |
| 3715-40A | | Front fender front top strip - 4" | 1940--except Servi-cars |
| 3715-40B | | Front fender top center strip - 6-1/2" | 1940--except Servi-cars |
| 3716-39 | | Set of front fender side strips complete | 1940 to 1949 |
| 3717-39 | | Set of rear fender side strips complete | 1939 to 1949--except Servi-cars |
| | | Part 3717-39 (Set of rear fender side strips complete) consists of: | |
| | | 3762-39: Rear fender front end side strip | |
| | | 3762-39A: Rear fender rear end side strip - R.H. | |
| | | 3762-39B: Rear fender rear end side strip - L.H. | |
| | | 3765-39: Fender side strip fastening clip | |
| 3718-40 | | Set of front fender top strips and Chevron complete | 1940--except Servi-Cars |
| | | Part 3718-40 (Set of front fender top strips and Chevron complete) consists of: | |
| | | 3715-40A: Front fender front top strip - 4" | |
| | | 3715-40B: Front fender top center strip - 6-1/2" | |
| | | 3720-40: Fender chevron | |
| | | 3765-40: Front fender top strip clips | |
| | | 3765-40A: Rear fender top strip clips | |
| 3719-40 | | Set of rear fender top strips | 1940-except Servi-Cars |
| | | Part 3719-40 (Set of rear fender top strips) consists of: | |
| | | 3719-40A: Rear fender top center strip | |
| | | 3719-40B: Rear fender top strip | |
| | | 3765-40: Front fender top strip clips | |
| | | 3765-40A: Rear fender top strip clips | |
| 3719-40A | | Rear fender top center strip | 1940--except Servi-cars |
| 3719-40B | | Rear fender top strip | 1940--except Servi-cars |
| 372-21 | 23972-21 | Flywheel steel washer (2) | 1936 to 1950 |
| 372-36 | 23972-36 | Crank pin bearing flywheel washer (2) | 1936 to 1952--61" OHV, 1937 to 1948--74" & 80" side valves |
| 372-41 | 23973-41 | Crank pin bearing flywheel washer (2) | 1941 to 1954--74" OHV |
| 3720 | 054B | 1/4"-28 N.F. 7/16" Hexagon head bolt | |
| 3720-40 | | Fender chevron | 1940--except Servi-Cars |
| 37222-52 | | Spring | 1962 to 1964 -- FL, FLH |
| 37228-75 | | Oil slinger | 1941 to 1969--FL, FLH |
| 3726-36 | | Front fender brace, upper | 4941 to 1949--Servi-Cars |
| 3726-40 | | Front fender brace, upper | 1940 to 1949--solo |
| 3726-40M | | Brace, front, front mudguard | |