Restores stock spring pressures and works with stock cam profiles for reliable valve control.
The OEM Replacement Valve Spring Kit is engineered to restore factory spring pressures and maintain compatibility with stock cam profiles.
Retainers, keepers, and bases are modeled using finite element analysis to maximize mechanical strength and durability under repeated use.
Springs are wound from Super Clean chrome silicon valve spring wire, then heat treated and shot peened for consistent performance and long life.
Manufactured to original O.E.M. specifications using modern materials and processes, and made in the USA.
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Big Twin | 1936 | ||
| Harley Davidson | Big Twin | 1937 | ||
| Harley Davidson | Big Twin | 1938 | ||
| Harley Davidson | Big Twin | 1946 | ||
| Harley Davidson | Big Twin | 1947 | ||
| Harley Davidson | Big Twin | 1936 | ||
| Harley Davidson | Big Twin | 1937 | ||
| Harley Davidson | Big Twin | 1938 | ||
| Harley Davidson | Big Twin | 1939 | ||
| Harley Davidson | Big Twin | 1940 | ||
| Harley Davidson | Big Twin | 1941 | ||
| Harley Davidson | Big Twin | 1942 | ||
| Harley Davidson | Big Twin | 1943 | ||
| Harley Davidson | Big Twin | 1944 | ||
| Harley Davidson | Big Twin | 1945 | ||
| Harley Davidson | Big Twin | 1946 | ||
| Harley Davidson | Big Twin | 1947 | ||
| Harley Davidson | Big Twin | 1946 | ||
| Harley Davidson | Big Twin | 1947 | ||
| Harley Davidson | Big Twin | 1941 | ||
| Harley Davidson | Big Twin | 1942 | ||
| Harley Davidson | Big Twin | 1943 | ||
| Harley Davidson | Big Twin | 1944 | ||
| Harley Davidson | Big Twin | 1945 | ||
| Harley Davidson | Big Twin | 1946 | ||
| Harley Davidson | Big Twin | 1947 |
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