Drag Specialties 09110023 Piston kitRef : DRG01473A / 09110023

Replacement piston signed DRAG SPECIALTIES, designed for engine rebuilds on vintage and touring V‑Twin models. This cast aluminium piston features oversize dimensions to provide a clean repair during a +0.010 (imperial) re-bore.

• Oversize bore: +0.010 (imperial)
• Piston diameter: 3.875 in
• Stroke length: 4‑3/8 in
• Material: OEM quality cast aluminium
• Some versions come with a coating designed to reduce friction and assist with heat dissipation
• Supplied as a kit: two pistons, pins, and circlips
• Compatible with OEM or Hastings rings (to be ordered separately)

Ideal for maintenance work and rebuilds on customs and touring bikes with the same bore, this piston allows for the restoration of the combustion chamber without compromising fit. Designed to integrate with standard components, it is suitable for owners seeking an economical and robust solution for their V‑Twin.

Manufacturer reference: 21989-07+.010 — Category: PISTONS ONLY. Compatibility examples: Harley‑Davidson FXSB 1690 Breakout (2014), FXDL 1690 Dyna Low Rider (2014), FXDF 1690 Dyna Fat Bob (2014).