| OEM | OEM | Description | Used on |
| 40070-28 | 2008-28 | Connecting link spring (front chain) | 30 to 57-61", 74" & 80" twins |
| 40076-15 | 2010-15 | Roller block (rear chain) | 15 to 57-61", 74" & 80" twins |
| 40077-15 | 2011-15 | Roller block (rear chain) | 15 to 57--all twins |
| 40078-30 | 2010-30 | Roller block (front chain) | 30 to 57-61", 74" & 80" twins |
| 40079-29 | 2011-29A | Roller block (front chain) | 37 to 57--all W & G models |
| 40080-29 | 2011-29 | Roller block (front chain) | 29 to 57--all W & G models |
| 40081-39 | 2011-39 | Roller block (front chain) | Later 39 to 57-61", 74" & 80" twins |
| 40091-15 | 2012-15 | Offset repair link (rear chain) | 15 to 57--ail twins |
| 40092-15 | 2013-15 | Offset link (rear chain) | 15 to 57--all twins |
| 40093-15 | 2014-15 | Double repair link (rear chain) | 15 to 57--all twins |
| 40094-15 | 2015-15 | Double repair link (rear chain) | 15 to 57--all twins |
| 40095-30 | 2014-30 | Double repair link (front chain) | 30 to 57-61", 74" & 80" twins |
| 40096-29 | 2014-29 | Double repair link (front chain) | 37 to 57--all W & G models |
| 40097-29 | 2015-29 | Double repair link (front chain) | 29 to 57--all W & G models |
| 40098-29 | | Double repair link | |
| 40098-39 | 2015-39 | Double repair link (front chain) | Later 39 to 57-61", 74" & 80" twins |
| 4010 | 4010 | 5/16"-24 N.F. x 1 7/32" Hexagon head bolt | |
| 4012 | 066A | 5/16"-24 N.F. x 1 1/8" Hexagon head bolt | |
| 4013 | 3748-26 | 5/16"-24 N.F. x 1 1/8" Hexagon head bolt | |
| 4014W | | Bolt, 5/16-24 x 1-1/4 hex. hd | |
| 4017 | 4017 | 5/16"-18 N.C. x 1" Hexagon head screw | |
| 4018W | | BOLT, 5/16-24 x 1-1/4 ctsk. hd. | |
| 402-37 | 24515-37 | Set of crankcases | 1937 to 1948--74"& 80" side valves |
| 402-41 | 24520-41 | Set of crankcases | 1941 to 1947--OHV |
| 402-48 | 24520-48 | Set of crankcases | 1948 to 1952--OHV |
| 4020 | 066B | 5/16"-24 N.F. x 1 3/8" Hexagon head bolt | |
| 40204-30 | 2027-30 | 17 tooth motor sprocket | 30 to 51-61", 74" &80" twins |
| 40205-30 | 2027-30A | 18 tooth motor sprocket | 30 to 57--61", 74" &80" twins |
| 40206-30 | 2029-30 | 19 tooth motor sprocket | 30 to 54-61", 74" &80" twins |
| 40206-55 | | 19 tooth motor sprocket | 55 to 57-74" OHV |
| 40208-30 | 2028-30 | 21 tooth motor sprocket | 30 to 54-61", 74" & 80" twins |
| 40208-55 | | 21 tooth motor sprocket | 55 to 57-74" OHV |
| 40209-30 | 2028-30B | 22 tooth motor sprocket | 30 to 54-61", 74" & 80" twins |
| 40209-55 | | 22 tooth motor sprocket | 55 to 57-74" OHV |
| 4020W | | Bolt, 5/16-24 x 1-3/8 hex. hd | |
| 4021 | | BOLT, 5/16-18 x 1 hex. hd. (2) (with safety wire holes) | Late 70 to * - FL, FLH, FX, FXS |
| 40210-30 | 2030-30 | 23 tooth motor sprocket | 30 to 54-61", 74" & 80" twins |
| 40210-55 | | 23 tooth motor sprocket | 55 to 57-74" OHV |
| 40211-30 | 2030-30B | 24 tooth motor sprocket | 30 to 54-61", 74" & 80" twins |
| 40211-55 | | 24 tooth motor sprocket | 55 to 57-74" OHV |
| 40212-30 | 2031-30 | 25 T Motor sprocket | Big Twins 1930-1954. VL, UL, Knucklehead, Panhead. |
| 40225-29 | 2030-29C | 17 tooth motor sprocket | 29 to 52--W models |
| 40230-29 | 2030-29D | 22 tooth motor sprocket | 29 to 57--W & G models |
| 40232-29 | 2029-29 | 24 tooth motor sprocket | 29 to 52--W models |
| 40234-29 | 2030-29A | 26 tooth motor sprocket | 29 to 52--W models |
| 40235-29 | 2030-29E | 27 tooth motor sprocket | 29 to 52--W models |
| 40237-29 | 2030-29B | 29 tooth motor sprocket | 29 to 52--W models |
| 40238-29 | 2030-29F | 30 tooth motor sprocket | 29 to 52--W models |
| 40240-29 | 2029-29A | 32 tooth motor sprocket | 29 to 52--W models |