What is the purpose of a second ring?

The second ring, also known as the intermediate ring, works with the top compression ring to seal the combustion chamber. It also helps to scrape excess oil from the cylinder wall, preventing it from entering the combustion chamber and being burned.

Why is this a bulk pack of 48 rings?

This bulk pack is intended for engine builders or shops that are working on multiple engines or performing extensive rebuilds. Having a larger quantity on hand can be more cost-effective and convenient for these types of projects.

What does 'THG' mean for a second ring?

THG stands for Tension-Ring Gas. This design indicates a second ring that is engineered to provide tension against the cylinder wall while also assisting in gas sealing, contributing to overall combustion chamber integrity.

Mahle OE Piston Rings 3021069B - 4.3550in Edge Width

Name: Mahle Rings 4.3550in X 1/16in Edge Width THG Second Ring Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-3550in-x-1-16in-edge-width-thg-second-ring-plain-ring-set-t14-51106
Price: 249.29 USD
Availability: BackOrder

Mahle Rings 4.3550in X 1/16in Edge Width THG Second Ring Plain Ring Set (48 Qty Bulk Pack)

$249.29

On Backorder

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

Mahle OE Piston Rings, 4.3550in edge width, 1/16in THG second ring. Bulk pack of 48 for engine builds.

Key Features

This is a Mahle OE Piston Rings set.
Features a 4.3550 inch bore size.
The second ring has a 1/16 inch edge width.
This is a THG (Tension-Ring Gas) second ring.
Comes in a bulk pack of 48 rings.
Not CARB approved; cannot ship to California.

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Product Details

These Mahle OE second ring sets feature a 4.3550 inch bore size and a 1/16 inch edge width, designed for specific engine applications. The THG (Tension-Ring Gas) second ring is a well-built component that helps seal the combustion chamber and control oil consumption. This bulk pack contains 48 rings, making it a practical choice for engine builders working on multiple projects or performing extensive rebuilds.

Mahle is a well-known name in engine components, and these rings are made to OE specifications. The plain ring design on this second ring is chosen for its effectiveness in sealing and its compatibility with various piston designs. Proper ring seal is crucial for maintaining compression, preventing blow-by, and ensuring efficient oil control, all of which contribute to the overall health and performance of your engine.

When rebuilding an engine, selecting the right piston rings is important for long-term reliability. This bulk pack offers a cost-effective solution for shops or individuals who need a significant quantity of high-quality second rings for their projects. Remember that these rings are not CARB approved and cannot be shipped to California.