Air and Fuel› Superchargers, Turbochargers and Components
HKS
HKS Lightweight Short Piston Pin Set D21 L56
SKU: H005 21005-AK009
Advanced — 4+ hours
Description
The set features a truss structure for improved rigidity, is made from highly heat-resistant and durable a2628 alloy, and has a shortened piston pin for reduced weight. It also incorporates a double-layer moly and PTFE coating to reduce friction and an offset piston pin to minimize axial body load.
Fitment
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Specifications
| Brand | HKS |
| Part Number | H005 21005-AK009 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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