508590 Retaining rings, pinion shaft bearing
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Specifications
- Brand
- MCS
- Part Number
- 508590
- OEM Reference
- 24701-54
- Pack Quantity
- Pack of 10
- Category
- Retaining Rings
- VAT Rate
- 20%
About This Product
These pinion shaft bearing retaining rings are essential hardware for vintage Sportster and Big Twin engine builds. They are designed to fit 1954 to 1976 XL Sportsters and 1955 to 1957 Big Twin models. Ensuring the pinion bearing is properly retained is critical for maintaining crankshaft alignment and preventing internal engine damage. These rings are a direct replacement for OEM 24701-54 and 508590. Sold in a pack of 10, they offer the reliability you need when restoring or maintaining a classic Harley-Davidson bottom end.
Manufacturer part number: 508590.
Fitment
5 models54-76 XL Sportster; 55-57 Big Twin
Sportster 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1975–1978 | Sportster 1000 XLCH-1000 |
| Harley-Davidson | 1975–1978 | Sportster Standard XLH-1000 |
| Harley-Davidson | 1979 | Sportster XLCH-1000 |
XLT Touring 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1980 | Sportster 1000 XLT-1000 |
55CI (883CC) OHV 4 Cycle-Twin 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1980 | Sportster Standard XLH |
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Who are we? Leeds Harley-Davidson - Iron City Motorcycles
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