Specifications
- Brand
- Mahle
- Part #
- 4280GNS-15T
- UPC
- 4280GNS-15T

Mahle MS 4.280in 1.5mm GNS Severe Duty Top Ring
$149.90
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Mahle MS 4.280in 1.5mm GNS Severe Duty Top Ring Set. Gas nitrided steel for durability.
Key Features
- Fits 8-cylinder engines.
- Top ring set with a 4.280 inch diameter.
- 1.5mm thickness.
- Constructed from gas nitrided steel for improved durability.
- Designed for severe duty applications.
⚠️ 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
Product Details
This is a Mahle GNS Severe Duty Top Ring Set, measuring 4.280 inches in diameter with a 1.5mm thickness. These rings are made from gas nitrided steel, a tough material that holds up well under demanding conditions. This set is designed for an 8-cylinder engine application and is intended for severe duty use, meaning it's built to handle more stress than standard rings.
The gas nitriding process hardens the surface of the steel, making it more resistant to wear and heat. This is especially important for the top ring, which experiences the highest temperatures and pressures in the combustion chamber. Using these rings can help ensure a good seal between the piston and cylinder wall, which is crucial for engine performance and longevity.
Please note that this part is not CARB approved and cannot be shipped to California. It is also subject to California's Prop 65 warning.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4280GNS-15T
- UPC
- 4280GNS-15T
Frequently Asked Questions
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Mahle MS 4.280in 1.5mm GNS Severe Duty Top Ring




