904415 MCS Shifter collar, starter motor for Harley-Davidson
incl. VAT
Chapter members save 12% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- MCS
- Part Number
- 904415
- OEM Reference
- 31503-70
- Pack Quantity
- Each
- Category
- Starter Motors
- VAT Rate
- 20%
About This Product
MCS starter motor shifter collar for rear chain drive models. Fits 1970 to 1982 FL, 1971 to 1985 FX, and 1984 to 1986 FXST. Excludes rear belt drive variants. It maintains correct engagement between the starter pinion and ring gear. Replaces OEM 31503-70. Check your primary type before fitting.
Manufacturer part number: 904415.
Fitment
45 models70-82 FL; 71-85 FX; 84-86 FXST (Excl. rear belt drive models)
FL Shovel 23 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1970–1974 | Electra Glide FL-1200 |
| Harley-Davidson | 1978–1981 | Electra Glide FLH |
| Harley-Davidson | 1978 | Electra Glide FLH 80 FLH-80 |
| Harley-Davidson | 1970–1980 | Electra Glide FLH-1200 |
| Harley-Davidson | 1979–1980 | Electra Glide FLH-80 |
| Harley-Davidson | 1975 | Electra Glide FLHF |
| Harley-Davidson | 1971–1975 | Electra Glide FLHF-1200 |
| Harley-Davidson | 1981 | Electra Glide FLHS |
| Harley-Davidson | 1977 | Electra Glide FLHS-1200 |
| Harley-Davidson | 1980 | Electra Glide FLHS-80 |
| Harley-Davidson | 1981 | Glide Classic FLHC |
| Harley-Davidson | 1980 | Glide Classic FLHC-80 |
| Harley-Davidson | 1975 | Glide Police FL |
| Harley-Davidson | 1981–1982 | Police Electra Glide FLH-1200 |
| Harley-Davidson | 1981–1982 | Police Electra Glide FLH-80 |
| Harley-Davidson | 1980 | Police FLH 80 FLHP-80 |
| Harley-Davidson | 1980 | Police FLH-1200 FLH-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Classic FHL-80 |
| Harley-Davidson | 1981–1982 | Touring Electra Glide Classic FLHC |
| Harley-Davidson | 1979 | Touring Electra Glide Classic FLHC-80 |
| Harley-Davidson | 1979–1982 | Touring Electra Glide FLH-80 |
| Harley-Davidson | 1981–1982 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1977 | Touring Electra Glide Sport FLHS-1200 |
FX Shovel 16 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | FX Low Rider FXSB |
| Harley-Davidson | 1981–1984 | FX Super Glide FXE |
| Harley-Davidson | 1976–1980 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1981–1982 | FX Super Glide FXS |
| Harley-Davidson | 1977–1978 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979–1984 | FX Super Glide FXS-80 |
| Harley-Davidson | 1981 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1980 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1981–1984 | FX Wide Glide FXWG |
| Harley-Davidson | 1980 | FX Wide Glide FXWG-80 |
| Harley-Davidson | 1976–1977 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1981 | Super Glide B80 FXB |
| Harley-Davidson | 1980 | Super Glide B80 FXB-80 |
| Harley-Davidson | 1971–1975 | Super Glide FX-1200 |
| Harley-Davidson | 1973–1975 | Super Glide FXE-1200 |
Softail 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Dyna Glide Glide Custom FXDG |
| Harley-Davidson | 1984–1985 | Softail Standard FXST |
Touring 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1981 | Glide Classic FLTC |
| Harley-Davidson | 1982 | Tour Glide Classic FLT |
| Harley-Davidson | 1979–1981 | Tour Glide FLT |
| Harley-Davidson | 1980 | Touring Tour Glide FLT |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
James Gaskets
Gasket starter hole cover. .020" RCM
James Gaskets
Gasket starter motor mount. Foamet
James Gaskets
Gasket starter hole cover. .031" paper
WAI Global
Starter motor, Hitachi style. Chrome
MCS
Starter motor end cover. Chrome
WAI Global
Starter motor, Prestolite style. Black
MCS
Shifter collar, starter motor
MCS
Starter motor end cover. Chrome
More from MCS
View all →
FLTR headlamp LED adapter harness
Transmission sprocket / pulley nut wrench
Motor mount w/coil mount. no ignition switch hole. Chrome
41-99 connecting rod roller retainer set
Throttle screw extension lever. Black
Detachable sissy bar side plates
Docking hardware kit
Docking hardware kit
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.