What is the purpose of top piston rings?

The top piston ring, also known as the compression ring, is primarily responsible for sealing the combustion chamber. This prevents combustion gases from leaking past the piston into the crankcase, which is essential for engine power and efficiency.

Why is this a bulk pack of 48 rings?

This bulk pack is designed for professional engine builders or shops that work on multiple engines or larger projects. Having a quantity of 48 rings on hand ensures you have enough for several builds without needing to reorder frequently.

What does '4.190in Bore Dia' mean?

This specification refers to the diameter of the cylinder bore that these piston rings are designed to fit. A 4.190-inch bore diameter is a specific size required for certain engine models or engine builds.

Mahle OE Piston Rings 3010215B - 4.190in Bore

Name: Mahle Rings 4.190in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-190in-bore-dia-1-16in-pc479-top-rings-plain-ring-set-48-q-t14-51334
Price: 786.01 USD
Availability: BackOrder

Mahle Rings 4.190in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)

$786.01

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle Rings 4.190in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)

Key Features

This is a bulk pack containing 48 Mahle OE top piston rings.
Designed for a 4.190-inch cylinder bore diameter.
Features a 1/16-inch face width for the PC479 top ring profile.
Mahle OE rings are a popular choice for engine rebuilding.
These rings are not CARB approved and cannot ship to California.

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Product Details

When you're rebuilding an engine, getting the piston rings right is critical for sealing the combustion chamber and ensuring proper oil control. This bulk pack of Mahle OE top rings is designed for a 4.190-inch bore diameter, featuring a 1/16-inch face width for the PC479 profile. Mahle is a well-known name in engine components, and these rings are made to meet the demands of a fresh engine build.

This set includes 48 individual top rings, making it a practical choice for shops or builders working on multiple engines or larger projects. The plain ring design is a common and reliable choice for many engine applications. Proper installation is key; ensure your cylinder walls are honed to the correct finish and that the rings are seated correctly to achieve optimal performance and longevity from your rebuild. These rings are intended for use in engines where a 4.190-inch bore is specified, and they are designed to provide a solid seal between the piston and cylinder wall.

It's important to note that this specific ring set is not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for detailed installation procedures and recommended ring gap specifications to ensure a successful rebuild.