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

File fit rings have an end gap that you adjust yourself by carefully filing them down. This allows for a precise fit in your specific cylinder bore, which is important for optimal sealing and performance, especially in performance applications.

What are the benefits of the nitride coating on the rings?

The nitride coating on the top and oil rings helps to improve their durability and wear resistance. It also contributes to reduced friction within the cylinder, which can lead to small gains in horsepower and improved engine efficiency.

Are these rings compatible with all 4-cylinder engines?

While designed for 4-cylinder engines, the specific dimensions and file-fit nature mean you must verify they match your engine's bore size and specifications. Always consult your engine's service manual or JE Pistons' fitment guide to ensure compatibility.

JE Pistons Piston Rings JG1004-3642

Name: JE Pistons Ring Sets 1.0-1.2-2.8-3.642
Brand: JE Pistons
SKU: je-pistons-je-pistons-ring-sets-1-0-1-2-2-8-3-642-t14-298071
Price: 172.88 USD
Availability: InStock

JE Pistons Ring Sets 1.0-1.2-2.8-3.642

$172.88

Only 1 left in stock

JE Pistons JG1004-3642 file fit piston ring set for 4-cylinder engines. Maximizes horsepower through precise combustion sealing.

Key Features

Fits 4-cylinder engines.
File fit style allows for precise end gap adjustment.
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 precision sealing.

This piston ring set is designed for 4-cylinder engines. Always confirm compatibility with your specific engine model and consult manufacturer specifications.

⚠️ 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

When you're rebuilding the top end of your 4-cylinder engine, getting the right piston rings is crucial for proper sealing and performance. These JE Pistons ring sets are designed to maximize horsepower by ensuring a tight seal for combustion pressure. They are a file-fit style, meaning you can fine-tune the end gap for a perfect fit in your specific cylinders, which is a technique often used by professional racing teams.

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 nitride coatings on the top and oil rings help improve durability and reduce friction, contributing to both power gains and a longer lifespan for your engine components. JE Pistons offers these rings in a wide variety of sizes and materials to suit many different engine builds.

Because these are file-fit rings, they require careful measurement and adjustment of the end gap before installation. Always refer to the manufacturer's instructions for the correct procedure to ensure optimal performance and prevent engine damage. Please note that these rings are not CARB approved and cannot be shipped to California.