Hastings Mfg Piston Rings - M8 1868 OS .010 Moly — Harley-Davidson Street Glide, Softail Fat Boy 114, Road King Special (2017-2026)

Hastings Mfg piston rings for Milwaukee-Eight and other V-twin motorcycle engines, available in cast or moly material. Three-piece oil ring design engineered to work with OEM and Screaming Eagle pistons. Made in the USA.

Features

• Available in Cast or Moly material
• Three-piece oil ring design
• Compatible with OEM and Screaming Eagle pistons
• Sold in sets for two pistons
• Made in the USA

Specifications

• Brand: Hastings Mfg
• Manufacturer Part #: 2C5232.25
• Length: 5 in
• Width: 1.37 in
• Height: 5 in
• Weight: 0.23 lbs

Fitment

Fits V-twin motorcycle engines including Milwaukee-Eight. Note: Twin Cam 113" and 883 XL models require two sets per bike (sold per cylinder).

Frequently Asked Questions

How many piston rings are in a set?

One complete three-piece ring set designed for two pistons, except TC 113" and 883 XL which are sold per cylinder.

Do I need to order two sets for my 883 XL?

Yes — 883 XL rings are per-cylinder, so you must order two sets for one bike.

Are these compatible with Screaming Eagle pistons?

Yes — Hastings rings are engineered to work with both OEM and Screaming Eagle pistons.

What material should I choose — Cast or Moly?

Both are available. Moly rings offer improved longevity and heat resistance; Cast is the traditional choice. Consult your engine builder or OEM specs for your application.