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

File-fit rings need to be custom-gapped to match the exact bore size of your engine cylinders. This ensures a proper seal and prevents the rings from binding. You'll need a ring gapper tool and a micrometer for this process.

What materials are the top and second rings made from?

The top ring is made from carbon steel with a nitride coating for improved durability and sealing. The second ring is made from ductile iron with a phosphate coating.

Are these rings suitable for all engine builds?

This specific ring set is designed for a 105.918mm bore and features specific ring thicknesses. Always verify that these dimensions and the file-fit nature match your engine's requirements and your build goals.

JE Pistons Piston Ring Set JG7708-4165-5

Name: JE Pistons Ring Sets .043-.043-3.0-105.918
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-043-043-3-0-105-918-t14-461052
Price: 299.99 USD
Availability: BackOrder

JE Pistons Ring Sets .043-.043-3.0-105.918

$299.99

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 ring set JG7708-4165-5. Designed to maximize horsepower through precise combustion sealing.

Key Features

Fits JE Pistons JG7708-4165-5 piston ring set.
Features a 0.043 inch carbon steel nitride top ring.
Includes a 0.043 inch ductile iron phosphate second ring.
Uses a 0.1181 inch carbon steel chrome low tension oil ring.
Designed for a 105.918mm bore size.
File-fit rings require gapping to your specific engine bore.

⚠️ 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 correctly is crucial for performance and longevity. This set from JE Pistons is built to seal combustion pressure effectively, which directly translates to more horsepower. They offer these rings in a wide variety of sizes and materials, and this particular set is designed for engines needing a 0.043 inch top ring, a 0.043 inch second ring, and a 0.1181 inch oil ring, with a bore size of 105.918mm.

This set features a 0.043 inch carbon steel nitride top ring for durability and sealing, a 0.043 inch ductile iron phosphate second ring, and a low-tension carbon steel chrome oil ring. These are file-fit rings, meaning you'll need to gap them to your specific cylinder bore for optimal performance. JE Pistons uses the same techniques for these rings that top racing teams rely on, aiming for improved durability and reduced friction for more power.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper gapping and seating procedures.