517920 Nut, crankpin. 54-E81 XL
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
- 517920
- OEM Reference
- 23967-54A
- Pack Quantity
- Sold as pr
- Category
- Crankpins
- VAT Rate
- 20%
About This Product
These are MCS crankpin nuts for 1954 through early 1981 XL Sportster models. They replace OEM 23967-54A. The thread is 1 inch by 20 pitch. They are sold as a pair. Fit these when you are rebuilding an Ironhead bottom end. Torque them correctly to spec. Fresh hardware keeps the rotating assembly tight inside the cases. An Ironhead vibrates hard. Do not reuse old nuts.
Manufacturer part number: 517920.
Fitment
15 models54-E81 XL Sportster
Model K 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1954–1956 | Model K KH-900 |
Sportster 14 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1975–1980 | Sportster 1000 XLCH-1000 |
| Harley-Davidson | 1977–1978 | Sportster 1000 XLCR-1000 |
| Harley-Davidson | 1981 | Sportster 1000 XLH |
| Harley-Davidson | 1979–1980 | Sportster 1000 XLH-1000 |
| Harley-Davidson | 1979–1980 | Sportster 1000 XLS-1000 |
| Harley-Davidson | 1977 | Sportster 1000 XLT-1000 |
| Harley-Davidson | 1981 | Sportster Roadster 1000 XLS |
| Harley-Davidson | 1980 | Sportster Standard XLH |
| Harley-Davidson | 1975–1978 | Sportster Standard XLH-1000 |
| Harley-Davidson | 1957 | Sportster XL-900 |
| Harley-Davidson | 1958 | Sportster XLC-900 |
| Harley-Davidson | 1973–1979 | Sportster XLCH-1000 |
| Harley-Davidson | 1959–1972 | Sportster XLCH-900 |
| Harley-Davidson | 1960–1971 | Sportster XLH-900 |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
Jims
41-E84 crankpin, 180 degree. STD
Jims
L81-99 crankpin, 180 degree. STD
Jims
41-E81 crankpin. STD but 0.25" shorter
Jims
Crankpin nuts
Jims
Crankpin nut. 54-E81 XL
MCS
Nut, crankpin
MCS
Crankpin, 57-E81 XL
MCS
Crankpin 41-E84 B.T. std
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.