Drag Specialties 09110021 Piston kitRef : DRG01689A / 09110021

DRAG SPECIALTIES - Piston (manufacturer part no. 21989-07)

Replacement piston designed for Harley Dyna engines and other Vintage/Classic and Touring applications. Made from high-quality cast aluminium alloy, this piston provides an economical solution for engine refurbishment in accordance with OEM specifications. Some versions are offered with a coating designed to reduce friction and improve durability.

• Piston diameter: 3.875"
• Stroke length: 4-3/8"
• Material: Cast aluminium
• Oversized bore: Standard
• Included in the kit: Two pistons, pins, and circlips
• Segment compatibility: Compatible with OEM or Hastings segments (to be ordered separately)

Ideal for cylinder/piston refurbishment operations on large displacement motorcycles, this piston is aimed at riders looking for a reliable replacement part that fits original settings. Application examples: Harley Davidson FXDL, FXDC, FXDB 1690 (FD2 models, 2014).