520358 Transmission sprocket, 21t
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
- 520358
- OEM Reference
- 520358
- Pack Quantity
- Each
- Category
- Sprockets Transmission
- VAT Rate
- 20%
About This Product
MCS 21-tooth transmission sprocket fits 4-speed FL and FX models from 1937 to 1979. The 21-tooth count splits the difference between low-end pull and motorway cruising. It suits classic Panhead and mid-seventies Shovelhead engines. Use it for restoration or daily riding. Check your shaft splines and retaining washer condition. Clean the shaft and inspect the old teeth before you fit it.
Manufacturer part number: 520358.
Fitment
45 models37-79 FL; FX
FL Shovel 19 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1970–1974 | Electra Glide FL-1200 |
| Harley-Davidson | 1966–1969 | Electra Glide FLB-1200 |
| Harley-Davidson | 1966–1967 | Electra Glide FLFB-1200 |
| Harley-Davidson | 1978 | Electra Glide FLH |
| Harley-Davidson | 1978 | Electra Glide FLH 80 FLH-80 |
| Harley-Davidson | 1970–1979 | Electra Glide FLH-1200 |
| Harley-Davidson | 1979 | Electra Glide FLH-80 |
| Harley-Davidson | 1966–1969 | Electra Glide FLHB-1200 |
| Harley-Davidson | 1975 | Electra Glide FLHF |
| Harley-Davidson | 1971–1975 | Electra Glide FLHF-1200 |
| Harley-Davidson | 1966–1969 | Electra Glide FLHFB-1200 |
| Harley-Davidson | 1977 | Electra Glide FLHS-1200 |
| Harley-Davidson | 1979 | Glide Classic FLHC-80 |
| Harley-Davidson | 1975 | Glide Police FL |
| Harley-Davidson | 1979 | Police FLH 80 FLHP-80 |
| Harley-Davidson | 1979 | Police FLH-1200 FLH-1200 |
| Harley-Davidson | 1979 | Touring Electra Glide Classic FLHC-80 |
| Harley-Davidson | 1978–1979 | Touring Electra Glide FLH-80 |
| Harley-Davidson | 1977 | Touring Electra Glide Sport FLHS-1200 |
FX Shovel 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1976–1979 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1977–1979 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979 | FX Super Glide FXS-80 |
| Harley-Davidson | 1979 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1979 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1976–1977 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1972–1975 | Super Glide FX-1200 |
Knucklehead 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1937–1947 | Knucklehead F-1200 |
| Harley-Davidson | 1937–1947 | Knucklehead FL-1200 |
Panhead 17 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1958–1964 | Duo Glide FL-1200 |
| Harley-Davidson | 1958–1964 | Duo Glide FLF-1200 |
| Harley-Davidson | 1958–1964 | Duo Glide FLH-1200 |
| Harley-Davidson | 1959–1964 | Duo Glide FLHF-1200 |
| Harley-Davidson | 1965 | Electra Glide FLB-1200 |
| Harley-Davidson | 1965 | Electra Glide FLFB-1200 |
| Harley-Davidson | 1965 | Electra Glide FLHB-1200 |
| Harley-Davidson | 1965 | Electra Glide FLHFB-1200 |
| Harley-Davidson | 1949–1952 | Hydra Glide F-1200 |
| Harley-Davidson | 1949–1957 | Hydra Glide FL-1200 |
| Harley-Davidson | 1953–1956 | Hydra Glide FLE-1200 |
| Harley-Davidson | 1954–1956 | Hydra Glide FLEF-1200 |
| Harley-Davidson | 1952–1956 | Hydra Glide FLF-1200 |
| Harley-Davidson | 1955–1957 | Hydra Glide FLH-1200 |
| Harley-Davidson | 1955–1957 | Hydra Glide FLHF-1200 |
| Harley-Davidson | 1948 | Panhead F-1200 |
| Harley-Davidson | 1948 | Panhead FL-1200 |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →More from MCS
View all →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.