904860 Rocker arm, rear intake
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Iron City Dealer
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Specifications
- Brand
- MCS
- Part Number
- 904860
- OEM Reference
- 17397-57A
- Pack Quantity
- Each
- Category
- Rocker Arms And Shafts
- VAT Rate
- 20%
About This Product
This stock-style replacement rocker arm is designed for the rear intake position on Ironhead engines. It is a reliable choice for maintaining the valvetrain on 1957 to 1985 XL Sportster models. When you are rebuilding a top end, having a fresh rocker arm that meets original specifications is essential for proper valve lift and timing. This component serves as a direct replacement for OEM 17397-57A and 904860, ensuring a precise fit within the rocker box. It is built to handle the rigors of the Sportster's overhead valve design, providing the durability needed for vintage Ironhead performance.
Manufacturer part number: 904860.
Fitment
11 models57-85 XL Sportster
Cafe Racer 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1978 | Sportster 1000 XLCR-1000 |
Roadster 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Sportster 1000 XLS-1000 |
Sportster 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1975–1980 | Sportster 1000 XLCH-1000 |
| Harley-Davidson | 1981–1985 | Sportster 1000 XLH |
| Harley-Davidson | 1979–1980 | Sportster 1000 XLH-1000 |
| Harley-Davidson | 1981–1985 | Sportster Roadster 1000 XLS |
| Harley-Davidson | 1983–1985 | Sportster Roadster 1000 XLX |
| 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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