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HKS 21005-AN023 Piston Ring Set TYPE-LF d-86 mm (6 pcs)
This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
HKS 21005-AN023 Piston Ring Set TYPE-LF d-86 mm (6 pcs)
Kelberg Warehouse
Auf der Struth 4
53539 Kelberg
Germany
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This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
This item is considered special order and is not available for immediate pickup or dispatch. Price and ETA may vary. Please note that no returns, cancellations, or refunds allowed on special orders.
Description HKS 21005-AN023 Piston Ring Set TYPE-LF d-86 mm (6 pcs)
Piston rings are important components that determine engine performance. The environment surrounding internal combustion engines is changing significantly, and the technology and theory behind piston rings have constantly evolved. HKS piston rings have been renewed with specifications incorporating the latest technology.
Note: The remaining sizes will be updated progressively in the future.
Top Ring:
- Reduced blow-by gas at both regular and high temperatures. The gas passage area at the joint at room temperature has been reduced by approximately 27% compared to existing products, significantly reducing blow-by gas emissions.
- Materials with a high thermal expansion coefficient reduce the gap between joints by approximately 88% during operation at high temperatures. The risk associated with the reduced path area has already been confirmed.
- The material has thermal conductivity approximately 37% higher than conventional products, improving piston cooling performance and reducing ring groove wear.
- Ring tension is lowered to reduce friction. The surface treatment emphasizes initial blending, and the film thickness has been changed for durability to achieve a longer life than conventional products.
2nd Ring:
- Stabilizes the posture of the top ring and contributes to improved sealing force.
- The gap at the mating end has been enlarged by approximately 25% to reduce second-land pressure.
- Reducing second-land pressure suppresses top-ring “fluttering,” the phenomenon of the ring going out of control in the groove, and improves sealing power.
- Ring tension is reduced by approximately 18% compared to the conventional product to reduce friction.
Oil Ring:
- Reduced friction is achieved by a 3-piece design.
- A 3-piece oil ring is used instead of the conventional 2-piece oil ring.
- Ring tension is reduced by approximately 10%, greatly reducing friction.
- Even with reduced tension, the structure does not increase oil consumption, so oil-scraping function is not deteriorated.