Hastings 3.498" Bore Piston Ring Set +.030" (6127030)
- Includes top compression rings, second compression rings, and oil control rings
- Cast coated
- Helps in the the heat transfer process between the piston and cylinder wall
- Controls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft
- Promotes side sealing that prevents oil from being forced under and behind the ring resulting in better oil economy
- Reverse twist ring along with a taper-machined ring face duplicates the OD bottom side scraping edge of a positive twist torsional ring
- Three-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore
- Provides uniform pressure through four steel rails and two expanders assuring positive oil control
- Made in the USA
- Includes enough rings for two pistons (unless noted).
- Two rings per groove, except for the rails that will be two rail rings per one expander ring.
Top Compression Rings are Barrel Face
Second Compression Ring are Reverse Torsional Taper Face
Oil Control Rings are Three Piece Flex Vent
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1979-1981 | Harley-Davidson | Electra Glide Classic FLHC | |
| 1983 | Harley-Davidson | Electra Glide Classic FLHTC | |
| 1978-1983 | Harley-Davidson | Electra Glide FLH | |
| 1980-1981 | Harley-Davidson | Electra Glide Sport FLHS | |
| 1979-1981 | Harley-Davidson | Fat Bob FXEF | |
| 1979-1982 | Harley-Davidson | Low Rider FXS | |
| 1980-1982 | Harley-Davidson | Sturgis FXB | |
| 1979-1982 | Harley-Davidson | Super Glide Electric Start FXE | |
| 1981-1983 | Harley-Davidson | Tour Glide Classic FLTC | |
| 1980-1983 | Harley-Davidson | Tour Glide FLT | |
| 1980-1982 | Harley-Davidson | Wide Glide FXWG | |