HASTINGS DS-750826 2M6482060 Replacement Piston Rings Piston Rings - 3.437" + 0.060" - 74" Big Twin

Features

• Includes top compression rings, second compression rings, and oil control rings
• Top Compression Rings are Barrel Face
• 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
• Second Compression Ring are Reverse Torsional Taper Face
• 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
• Oil Control Rings are Three Piece Flex Vent
• 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
• Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
• 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.

Specs

Style	Performance Replacement
Product Name	Piston Ring Set
Riding Style	Street
Bore Size	3.437"
Units	Set
Ring Material	Moly Coated
Bore - Oversize	+0,060"
Bore Oversize	+0.060"

Part Notes

• Kit Includes:
• • 2x Top Compression Rings 0.0625"
• • 2x Second Compression Rings 0.0625"
• • 2x Expander Rings
• • 4x Steel Rails

1958-1964	Harley-Davidson	Duo Glide FL
1949-1951, 1953-1957	Harley-Davidson	Hydra Glide FL
1965-1980	Harley-Davidson	1200 Electra Glide FLH
1965-1980	Harley-Davidson	Electra Glide FL
1971-1978	Harley-Davidson	1200 Super Glide FX
1949-1957	Harley-Davidson	Hydra Glide EL
1979-1980	Harley-Davidson	1200 Fat Bob FXEF
1974-1980	Harley-Davidson	1200 Super Glide FXE
1941-1947	Harley-Davidson	Knucklehead FL
1958-1964	Harley-Davidson	Duo Glide FLH
1977-1979	Harley-Davidson	1200 Low Rider FXS
1980	Harley-Davidson	Electra Glide Sport FLHS
1948	Harley-Davidson	FL

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.