18631-30 James Gaskets Tappet block gasket. FR/RR for Harley-Davidson
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Specifications
- Brand
- James Gaskets
- Part Number
- 18631-30
- OEM Reference
- 18631-30
- Pack Quantity
- Pack of 10
- Category
- Tappet Block Gaskets
- VAT Rate
- 20%
About This Product
James Gaskets tappet block gasket for front and rear. It fits 1930 to 1973 45-inch Flatheads and 1937 to 1948 74-inch and 80-inch Flatheads, excluding K and KH models. It replaces OEM 18631-30 and 237-30. These seal the tappet blocks to the crankcase and stop leaks from the pushrod tunnel. Check the block face for nicks before fitting. Sold as a pack of 10.
Manufacturer part number: 18631-30.
Fitment
10 models30-73 45" Flathead; 37-48 74"; 80" Flathead (Excl. K; KH)
Flathead 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1935–1952 | 45" WL |
| Harley-Davidson | 1937–1948 | Flathead U-1200 |
| Harley-Davidson | 1937–1948 | Flathead UH-1300 |
| Harley-Davidson | 1937–1948 | Flathead UL-1200 |
| Harley-Davidson | 1937–1948 | Flathead ULH-1300 |
Servi-Car 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1935–1963 | Servi-Car G-750 |
| Harley-Davidson | 1941–1959 | Servi-Car GA-750 |
| Harley-Davidson | 1938 | Servi-Car GD-750 |
| Harley-Davidson | 1935 | Servi-Car GDT-750 |
| Harley-Davidson | 1964–1972 | Servi-Car GE-750 |
Planning other changes? Find your model in the bike customiser.
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Who are we? Leeds Harley-Davidson - Iron City Motorcycles
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