Harley Davidson Dyna [2007-2017]-Forged performance piston kit hub 4.375 "...

Description

The piston kit was specially developed for the Harley Davidson Dyna models from 2007 to 2017 and is characterized by its high -quality processing. It is forged from a 4032 aluminum silicon alloy with a low expansion coefficients and 11% silicon proportion, which ensures high strength and durability. The integrated accumulator improves the sealing between the piston rings, while mini -milling on the surface minimize the risk of detonations. In addition, the pistons are provided with an anti-friction coating that minimizes the wear.

Content of the kit

• Two forged pistons
• Two sets of molybdenum -coated rings made of ductile iron
• Piston bolts and safety clips
• Assembly oil to facilitate installation

Technical details

Compression relationship: 10.5:1

Drilling diameter: 4 1/8 inches

Hub: 4.375 inches

Material: Forged 4032 aluminum silicon alloy

Packaging: Sales takes place in pairs