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

Product description

The forged performance piston kit for Harley Davidson Dyna models from 2007 to 2017 offers a high-quality solution to increase performance. The pistons are made from a 4032 low expansion of silicon alloy, which is known for its low extent and high strength. The special construction with a accumulator between the upper and second ring significantly improves the sealing and performance of the engine.

In addition, the piston surfaces are provided with mini -mills that minimize the detonation and thus increase the lifespan and reliability of the engine. An anti-friction coating on the piston shirts reduces friction and supports a more efficient engine output.

Content of the kit

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

The piston kit is sold in pairs and is specially designed for the hub of 4.375 inches.

Technical details

Compression relationship: 9.5:1

Drilling diameter: 4 1/8 inches

Hub: 4 3/8 inches

Material: aluminum

The KIT is designed for a simple installation and immediate increase in performance and corresponds to the high quality standards of brands.