What does 'file-fit' mean for these piston rings?

File-fit means the end gap of the piston ring is not pre-set. You will need to carefully file the ends of the rings to achieve the correct gap for your specific cylinder bore size and engine build. This allows for a more precise seal.

What is the advantage of a plasma moly top ring?

The ductile iron plasma moly coating on the top ring is designed for improved wear resistance and a better seal against the cylinder wall. This helps to maximize combustion pressure and horsepower.

Are these rings suitable for all engine builds?

This is a standard tension ring set designed for precise sealing. JE Pistons offers a wide range of sizes and custom services for more specialized applications, but this EconO set is a well-built option for many rebuilds.

JE Pistons Piston Ring Set S100S1-4125-5

Name: JE Pistons Ring Sets 1/16-1/16-3/16 ECONO
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-16-1-16-3-16-econo-t14-298251
Price: 19.99 USD
Availability: BackOrder

JE Pistons Ring Sets 1/16-1/16-3/16 ECONO

$19.99

On Backorder

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

JE Pistons EconO piston ring set, 1/16-1/16-3/16. Designed for precise sealing to maximize horsepower.

Key Features

Fits 1 cylinder.
Features a 0.064 inch ductile iron plasma moly top ring for precise sealing.
Includes a 0.064 inch iron phosphate second ring.
Has a 0.188 inch carbon steel chrome standard tension oil ring.
File-fit design allows for custom end gap adjustment.
Not CARB approved; cannot ship to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

The 0.064 inch ductile iron plasma moly top ring is a key feature of this JE Pistons EconO ring set. This specific material and coating helps ensure a tight seal against the cylinder wall, which is crucial for maximizing combustion pressure and, in turn, horsepower. This set is built for a single cylinder and features a file-fit design, meaning you can precisely adjust the end gap to match your specific engine build. The second ring is also 0.064 inches and made of iron phosphate, further contributing to a solid seal. For the oil ring, you get a 0.188 inch carbon steel chrome standard tension ring, designed to manage oil effectively and prevent blow-by.

JE Pistons offers these rings in a wide variety of sizes and materials to fit many different engines. While these are standard tension rings, JE Pistons also provides custom services like back cutting and PVD coating, used by professional racing teams, to further improve durability and reduce friction for even better power gains and sealing. This particular set is a solid option for engine rebuilds where precise sealing is the goal.