✦ Ground shipping $14.95 — free over $150✦ Live distributor stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069✦ Ground shipping $14.95 — free over $150✦ Live distributor stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069
Shop › Top End
Hastings Piston Rings — 3.625" Big Bore — 88" Big Twin
In warehouse stock

Hastings Piston Rings — 3.625" Big Bore — 88" Big Twin

Hastings · #DS-750861 · Top End / Engine
  • 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
$44.17
In stock. Ships in 2–4 business days · free shipping over $150.
View cart & check out →
Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Description & features14 features

Set for one piston only.

Kit Includes:

• 1x Top Compression Rings 0.0625"

• 1x Second Compression Rings 0.0625"

• 1x Expander Rings 0.1875"

• 2x Steel Rails

  • 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.
Specifications9 specs
Style
Replacement
Riding Style
Street
Ring Material
Moly Coated
Units
Set
Bore - Oversize
Standard
Bore Size
3.625"
Shipping weight
0.19 lb
Package size
4.8 × 4.8 × 1.1 in
Country of origin
USA
Fitment33 models · Harley-Davidson
Harley-Davidson33 models
  • 1200 Electra Glide FLH1965–1969, 1978–1980
  • 1200 Fat Bob FXEF1979–1980
  • 1200 Low Rider FXS1979
  • 1200 Super Glide FXE1979–1980
  • Duo Glide FL1958–1964
  • EL1949–1952
  • Electra Glide Classic FLH1981–1982
  • Electra Glide FL1965–1980
  • Electra Glide Heritage FLH1981
  • Electra Glide Standard FLHT1983
  • FL1948
  • FLH Duo-Glide1958–1964
  • FLH Electra Glide1970–1984
  • FLHS Electra Glide Sport1980–1982
  • FLHTC Electra Glide Classic1983
  • FLHX Electra Glide Special1984
  • FLT Tour Glide1980–1983
  • FLTC Tour Glide Classic1981–1983
  • FX Super Glide1971–1978
  • FXB Sturgis1980–1982
  • FXDG Disc Glide1983
  • FXE Super Glide1974–1978, 1981–1984
  • FXEF Fat Bob1979–1981, 1985
  • FXR Super Glide II1982–1983
  • FXRT Sport Glide1983
  • FXS Low Rider1977–1982
  • FXSB Low Rider - Belt1983–1985
  • FXWG Wide Glide1980–1984
  • Hydra Glide EL1953–1957
  • Hydra Glide FL1949–1951, 1953–1957
  • Super Glide 80 FXE1979–1980
  • Super Glide II FXRS1982–1983
  • Tour Glide Classic FLTC1980
Fitment comes from the distributor’s catalog. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
Salto part #
DS-750861
Hastings part #
2M5721
UPC
075538148036
Shipping

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Questions4 answers
Is it in stock?
Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
How fast will it get to me?
Usually 2–4 business days by ground.
Will it fit my machine?
The distributor lists it for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine Hastings?
Yes. It ships new from the same distributors the big online stores buy from — Hastings part #2M5721.