Specifications
- Brand
- Mahle
- Part #
- 4320GNS-15T
- UPC
- 4320GNS-15T

Mahle MS 4.320in 1.5mm GNS Severe Duty Top Ring
$149.90
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Mahle MS 4.320in 1.5mm GNS Severe Duty Top Ring Set. Built for demanding conditions.
Key Features
- Fits 8-cylinder engines.
- Features a 1.5mm top ring width.
- Constructed from gas nitrided steel (GNS) for improved wear resistance.
- Designed for severe duty applications.
- Not CARB approved; cannot ship to California.
⚠️ 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 1.5mm gas nitrided steel top ring set is built for severe duty applications. The nitriding process hardens the steel surface, making it more resistant to wear and heat, which is crucial for engines under heavy load or high temperatures. These rings are designed to provide a solid seal between the piston and cylinder wall, helping to maintain compression and prevent blow-by.
Mahle's GNS severe duty top rings are a well-built option when you need reliable performance in tough conditions. The steel construction offers good strength and durability, while the nitrided finish ensures it can handle the stresses of demanding engine operation. This set is intended for an 8-cylinder engine configuration.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4320GNS-15T
- UPC
- 4320GNS-15T
Frequently Asked Questions
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Mahle MS 4.320in 1.5mm GNS Severe Duty Top Ring




