Drag Specialties 09110045 Piston kitRef : DRG01691A / 09110045

DRAG SPECIALTIES Piston (manufacturer part no. 22661-99A-STD) — Big Bore piston specially developed for Twin Cam engines, intended for Vintage/Classic and Touring applications. A robust replacement part for big bore preparations or the refurbishment of 1550 cm³ engines, this piston features dimensions suitable for the standard bore specified for this installation.

• Type: Big Bore Piston (big cylinder style)
• Bore: Standard / 3.875" (imperial)
• Compression ratio: 10.25:1
• Compatibility: designed for Twin Cam applications (1550 cm³ engines)
• Brand: Drag Specialties — PISTONS ONLY category

This piston is aimed at riders who value machining quality and compatibility with Twin Cam camshafts. It is supplied without rings or pins: please ensure you have the assembly parts and check the bore before installation. It is particularly suitable for several Harley-Davidson models equipped with 1550 cm³ engines such as the Fat Boy, Road King, and Road Glide from the listed years, subject to compatibility verification with your engine.

Before installation, check the dimensions, radial play, and condition of the cylinder; professional installation is recommended to ensure proper fit and longevity of the assembly. Manufacturer reference: 22661-99A-STD.