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

File-fit rings are designed to be custom-gapped by the installer to precisely match the cylinder bore of your engine. This allows for optimal sealing and performance, especially in modified or performance applications. You will need a ring expander and a ring gapper tool for installation.

What materials are these piston rings made from?

The top ring is made of ductile iron with a plasma moly coating, the second ring is iron phosphate, and the oil ring is carbon steel chrome with low tension.

Are these rings suitable for all engine builds?

These rings are designed for maximizing horsepower through precise sealing. While JE Pistons offers many options, file-fit rings require precise installation and are often chosen for performance or rebuilt engines where exact clearances are critical.

JE Pistons Piston Rings J50001-4135-5

Name: JE Pistons Ring Sets 1/16-1/16-3/16 RING
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-16-1-16-3-16-ring-t14-296992
Price: 62.10 USD
Availability: BackOrder

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

$62.10

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 file-fit piston ring set for 1 cylinder. Maximizes horsepower through precise combustion sealing.

Key Features

Fits 1 cylinder.
File-fit design allows for custom gapping to match cylinder bore.
Top ring is 0.064 inch ductile iron with plasma moly coating.
Second ring is 0.064 inch iron phosphate.
Oil ring is 0.188 inch carbon steel chrome with low tension.

⚠️ 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

When you're rebuilding the top end of your engine, getting the piston rings seated properly is crucial for performance and longevity. These JE Pistons ring sets are built to ensure a tight seal against the cylinder wall, which is key to maximizing horsepower by keeping combustion pressure where it belongs. They come in a variety of sizes and thicknesses, so you can find the right fit for your specific engine build.

This particular set is designed for a single cylinder and features file-fit rings, meaning you can precisely gap them to match your cylinder bore and desired clearance. The top ring is made from ductile iron with a plasma moly coating for good sealing and durability, while the second ring is iron phosphate. For the oil ring, you get a low-tension carbon steel chrome design that helps manage oil effectively without creating excessive drag.

Because these are file-fit rings, you'll need the proper tools and a bit of patience during installation to ensure they're gapped correctly for your application. This attention to detail during the build process is what separates a good engine from a great one, and JE Pistons has been a go-to for racers and builders for a long time.