Harley Davidson Dyna [1999-2006]-forged performance piston kit hub 4,000 "

Description

The performance piston kit for Harley Davidson Dyna models from 1999 to 2006 is made from a high-quality 4032 aluminum silicon alloy with a low expansion coefficients and 11% silicon proportion. This combination enables a robust construction that is also easy. The integrated accumulator improves the sealing between the piston rings, while the mini -mills at the top of the piston minimize the risk of detonations. The piston surfaces are also provided with an anti-friction coating in order to reduce friction and extend the lifespan.

• The scope of delivery includes two forged pistons, two sets of molybdenum -coated rings made of ductile iron, piston bolts, safety rings and assembly oil.
• The piston kits are offered in pairs.

Technical details

Bore: 4 1/8 inches

Hub: 4 inches

Compression relationship: 9.5:1

Material: aluminum

More information

The precise production and the well thought -out design of this piston kit help to increase the performance and efficiency of the engine. The special coating and the careful selection of the materials guarantee high reliability and improved engine performance.