4244020 Hastings 2-3/4" bore piston ring set. +.020" for Harley-Davidson
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Specifications
- Brand
- Hastings
- Part Number
- 4244020
- OEM Reference
- —
- Pack Quantity
- Pack of 2
- Category
- Piston Rings
- VAT Rate
- 20%
About This Product
Hastings late-style piston ring set for 2-3/4 inch bore. This is the .020-inch oversize. It fits 1950 to 1973 45-inch Flathead models and 1952 to 1956 K, KH, and KHK 55-inch Flatheads. The set uses 1.6mm grey iron parkerized compression rings and 4.75mm three-piece flex-vent chrome oil rings. These do not fit early 1929 to 1949 pistons. Those used thicker rings. Measure your piston grooves before ordering.
Manufacturer part number: 4244020.
Fitment
7 models50-73 45" (750cc) Flathead; all 52-56 K 45" (750cc) and KH; KHK 55" (900cc) Flathead models
Flathead 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1950–1952 | 45" WL |
Model K 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1952–1953 | Model K K-750 |
| Harley-Davidson | 1954–1956 | Model K KH-900 |
| Harley-Davidson | 1955 | Model K KHK-900 |
Servi-Car 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1950–1963 | Servi-Car G-750 |
| Harley-Davidson | 1950–1963 | Servi-Car GA-750 |
| Harley-Davidson | 1964–1972 | Servi-Car GE-750 |
Planning other changes? Find your model in the bike customiser.
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