What is the primary function of piston rings?

Piston rings have a few key jobs: they seal the combustion chamber to maintain compression, they transfer heat from the piston to the cylinder wall for cooling, and they control the amount of oil in the combustion chamber. Proper sealing is vital for engine performance and efficiency.

Are these rings compatible with pistons from other brands?

While these rings are designed to work with HKS pistons, they can be a solid option for other performance builds. It's important to ensure the dimensions and specifications match your specific piston and cylinder bore for proper fitment and function.

Why is this part not CARB approved?

This piston ring set is not approved by the California Air Resources Board (CARB) for use in emissions-controlled vehicles in California. Therefore, it cannot be shipped to addresses within California.

HKS Piston Ring Set N8 21005-AN008

Name: HKS PISTON RING SET N8
Brand: HKS
SKU: hks-hks-piston-ring-set-n8-t14-404257
Price: 407.30 USD
Availability: BackOrder

HKS PISTON RING SET N8

$407.30

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

HKS Piston Ring Set N8

Key Features

Fits HKS pistons for a direct replacement.
Constructed from high-strength steel for durability.
Designed for performance engine applications.
Features specific ring tension and oil control for optimal cylinder sealing.
Not CARB approved; cannot ship to California.

No-fit, no charge. Wrong part? Send it back, free return label.

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Product Details

Forged from high-strength steel, these HKS piston rings are built to handle the demands of performance engines. The N8 series features a specific ring tension and oil control design that helps maintain proper seal between the piston and cylinder wall, which is crucial for consistent compression and efficient combustion. This set is designed as a direct replacement for your existing piston rings, ensuring a proper fit during engine rebuilds.

HKS has a long history of developing parts for high-performance applications, and this piston ring set reflects that expertise. The materials and manufacturing processes are chosen to provide reliable performance and durability under stress. When you're rebuilding an engine, especially one that sees spirited driving or track use, using well-made components like these rings is essential for the longevity and performance of your build. They are designed to work with HKS pistons, but can also be a solid option for other performance builds where precise ring sealing is a priority.

Please note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures during your engine rebuild.