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

File fit rings are designed to be adjusted by the installer to precisely match the cylinder bore. This allows for a custom, tight seal that can improve performance and reduce blow-by compared to pre-sized rings.

What materials are used in this piston ring set?

This set includes a carbon steel nitride top ring, a ductile iron phosphate second ring, and a carbon steel nitride low-tension oil ring. These materials and coatings are selected for their sealing capabilities, durability, and friction reduction.

Are these rings suitable for all 4-cylinder engines?

These rings are designed for 4-cylinder engines and come in a specific size (77.50mm bore). However, they are file-fit, meaning they require adjustment to the cylinder bore. Always confirm compatibility with your specific engine model and refer to JE Pistons' fitment guides.

JE Pistons Piston Rings JG1004-3051

Name: JE Pistons Ring Sets 1.0-1.2-2.8-77.50
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-0-1-2-2-8-77-50-t14-461996
Price: 172.88 USD
Availability: BackOrder

JE Pistons Ring Sets 1.0-1.2-2.8-77.50

$172.88

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 Sets JG1004-3051. These file-fit piston rings help maximize horsepower by precisely sealing combustion pressure.

Key Features

Fits 4-cylinder engines.
File fit style for precise cylinder sealing.
Top ring is 0.0394 inch thick carbon steel nitride.
Second ring is 0.0472 inch thick ductile iron phosphate.
Oil ring is 0.1102 inch thick low-tension carbon steel nitride.
Designed to maximize horsepower through combustion pressure sealing.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're rebuilding the engine in your 4-cylinder vehicle, getting the right piston rings is crucial for proper sealing and performance. These JE Pistons ring sets are designed to help maximize horsepower by precisely sealing combustion pressure within the cylinder. They are a file-fit style, meaning you'll adjust them to the specific cylinder bore during installation for a perfect seal.

This particular set features a 0.0394-inch thick carbon steel nitride top ring, a 0.0472-inch ductile iron phosphate second ring, and a 0.1102-inch low-tension carbon steel nitride oil ring. The materials and coatings are chosen to provide good durability and reduced friction, contributing to both power gains and improved ring seal. JE Pistons uses the same techniques for these rings that are employed by top racing teams, aiming for enhanced durability and power.

Because these are file-fit rings, they require careful installation and adjustment to match your engine's specific bore size. Always refer to the manufacturer's installation instructions for proper fitting and assembly procedures.