900649 Brake shaft. for B.T. mech brake
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Specifications
- Brand
- MCS
- Part Number
- 900649
- OEM Reference
- 42550-31
- Pack Quantity
- Each
- Category
- Brake Shafts
- VAT Rate
- 20%
About This Product
This mechanical brake shaft is an essential part for 1941 to 1957 Big Twin models using the traditional mechanical rear brake setup. It is a direct replacement for OEM 42550-31 and is built to handle the torque and leverage required to actuate the rear drum. Whether you are restoring a vintage Panhead or keeping a Knucklehead on the road, a straight and sturdy brake shaft is critical for consistent braking performance. This MCS shaft ensures your mechanical linkage operates smoothly without the binding often found in old, worn-out original parts, restoring the confidence you need when coming to a stop.
Manufacturer part number: 900649.
Fitment
17 models41-57 Big Twin
OHV 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1941–1947 | Knucklehead E-1000 |
| Harley-Davidson | 1948 | Knucklehead EL-1000 |
| Harley-Davidson | 1941–1947 | Knucklehead F-1200 |
| Harley-Davidson | 1941–1945 | Knucklehead FL-1200 |
| Harley-Davidson | 1948 | Panhead F-1200 |
Sidevalve 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1943 | Flathead U-1200 |
| Harley-Davidson | 1942–1948 | Flathead UH-1300 |
| Harley-Davidson | 1942–1948 | Flathead UL-1200 |
| Harley-Davidson | 1941–1944 | Flathead ULH-1300 |
Touring 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1950–1952 | Hydra Glide E-1000 |
| Harley-Davidson | 1949 | Hydra Glide EL-1000 |
| Harley-Davidson | 1949–1952 | Hydra Glide F-1200 |
| Harley-Davidson | 1951–1955 | Hydra Glide FL-1200 |
| Harley-Davidson | 1953–1954 | Hydra Glide FLE-1200 |
| Harley-Davidson | 1953–1956 | Hydra Glide FLEF-1200 |
| Harley-Davidson | 1957 | Hydra Glide FLF-1200 |
| Harley-Davidson | 1956–1957 | Hydra Glide FLH-1200 |
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