What is the primary function of piston rings?

Piston rings have three main jobs: they seal the combustion chamber to prevent gas leakage, they control the amount of oil that reaches the cylinder walls for lubrication, and they help transfer heat from the piston to the cylinder wall for cooling.

What does 'plain ring' mean in this context?

A 'plain ring' typically refers to a piston ring with a simple, unadorned design, often made from cast iron or steel. It's a straightforward and reliable component designed for essential sealing and oil control functions in an engine.

Why is this product not CARB approved?

CARB (California Air Resources Board) approval is required for certain engine parts sold in California to ensure they meet strict emissions standards. This product does not meet those specific standards and therefore cannot be shipped to California.

Mahle OE Piston Rings 3010222B - 4.380in Bore

Name: Mahle Rings 4.380in Bore Dia 1/16in PC479 Top Ring Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-380in-bore-dia-1-16in-pc479-top-ring-plain-ring-set-48-qt-t14-51055
Price: 870.76 USD
Availability: BackOrder

Mahle Rings 4.380in Bore Dia 1/16in PC479 Top Ring Plain Ring Set (48 Qty Bulk Pack)

$870.76

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 4.380in Bore Dia 1/16in PC479 Top Ring Plain Ring Set (48 Qty Bulk Pack). This bulk pack of 48 sets ensures you have enough high-quality piston rings for multiple engine builds.

Key Features

Fits engines with a 4.380-inch bore diameter.
Features a 1/16-inch top ring thickness.
Includes 48 sets of PC479 top piston rings.
Manufactured by Mahle OE, a recognized name in engine components.
Plain ring design for reliable sealing and oil control.
Not CARB approved; cannot ship to California.

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Product Details

This bulk pack from Mahle OE gives you 48 sets of their PC479 top piston rings, designed for a 4.380-inch bore. These rings are a plain type, meaning they are a straightforward, well-built component for your engine's internal rebuild. Having a large quantity like this on hand is ideal for shops or builders who frequently work on engines requiring this specific bore size, ensuring you don't have to wait for parts when you're in the middle of a project.

Mahle is a well-known name in engine components, and these rings are built to meet the demands of engine rebuilding. The 1/16-inch top ring thickness is a common specification that works well in many performance and heavy-duty applications. When you're rebuilding an engine, the piston rings are critical for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall. These Mahle rings are made to perform these essential functions reliably, contributing to the overall health and longevity of the engine.

This particular set is not CARB approved and cannot be shipped to California. It's important to verify that these rings meet the specific requirements for your engine build and local emissions regulations. Having a bulk pack like this can streamline your parts inventory and ensure you always have the necessary components for your engine work.