Specifications
- Brand
- Mahle
- Part #
- 4055MDK-D
- UPC
- 4055MDK-D

Mahle MS GM Duramax 4.055in 3.0K 2.0mm 3.0mm Drop In Rings
$480.68
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Mahle MS GM Duramax 4.055in piston ring set for 6.6L Duramax engines. These drop-in rings are a solid option for engine rebuilds.
Key Features
- Fits GM 6.6L Duramax diesel engines.
- 4.055 inch bore size.
- Features a 2.0mm top ring and a 3.0mm oil control ring.
- Constructed from steel for diesel engine durability.
- Designed as a drop-in replacement for easier installation.
- Mahle is a popular brand for engine components.
⚠️ 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 MS piston ring set specifically for GM 6.6L Duramax diesel engines. These rings are designed as a direct replacement, meaning they drop right into the pistons without needing machine work. They measure 4.055 inches in bore size, with a 2.0mm top ring and a 3.0mm oil control ring, built from steel for diesel applications.
When you're rebuilding the top end of your Duramax, getting the right piston rings is crucial for sealing combustion and managing oil. Mahle is a well-known name in engine components, and this set is built to handle the demands of a diesel engine. The steel construction offers good durability for these high-compression engines.
Keep in mind that these rings are not CARB approved and cannot be shipped to California. Also, be aware of the Prop 65 warning associated with this product.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4055MDK-D
- UPC
- 4055MDK-D
Frequently Asked Questions
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Mahle MS GM Duramax 4.055in 3.0K 2.0mm 3.0mm Drop In Rings




