Hastings Mfg Piston Rings - Twin CAM 1690 STD Size Moly — Harley-Davidson Road King, Electra Glide Ultra Classic, Softail Heritage Classic (1999-2017)

Hastings Mfg piston rings for Twin Cam 1690cc engines in standard size, manufactured in the USA and compatible with both OEM and Screaming Eagle pistons. These moly rings feature three-piece oil control design for reliable sealing and long ring life.

Features

• Moly ring construction
• Three-piece oil rings
• Compatible with OEM and Screaming Eagle pistons
• Made in the USA
• Set includes rings for two pistons

Specifications

• Brand: Hastings Mfg
• Manufacturer Part #: 2M4941
• Ring Type: Moly
• Engine Size: Twin Cam 1690
• Size: Standard
• Length: 5 in
• Width: 1.37 in
• Height: 5 in
• Weight: 0.23 lbs

Fitment

Fits Twin Cam 1690cc V-twin engines. Note: TC 113" and 883 XL models require two sets per bike (sold per-cylinder for those models).

Frequently Asked Questions

What's included in one set?

Rings for two pistons. Exception: TC 113" and 883 XL are sold per-cylinder and require ordering two sets per bike.

Are these compatible with Screaming Eagle pistons?

Yes — these rings are designed to work with both OEM and Screaming Eagle pistons.

Why do TC 113" and 883 XL require two sets?

Those models are packaged per-cylinder instead of per-piston pair. Order two sets to have a complete ring set for your bike.

Are these cast or moly rings?

This part number is moly. Hastings also offers a cast-iron version if you prefer that material.