What is the purpose of the Moly coating on the top ring?

The Moly coating on the top compression ring is designed to reduce friction and improve wear resistance. This helps the ring slide more smoothly against the cylinder wall, leading to better sealing and longer life, especially under demanding conditions.

Can these rings be used in any engine with a 3.9100-inch bore?

While these rings are sized for a 3.9100-inch bore, it's important to confirm compatibility with your specific engine model and application. Factors like piston groove depth and ring land height need to match the ring specifications for proper fitment and function.

Why are these rings not CARB approved?

This specific ring set is not approved by the California Air Resources Board (CARB). Therefore, it cannot be legally shipped to or sold in California due to emissions regulations.

Mahle OE Piston Rings 3010842B - Moly Claimer Top

Name: Mahle Rings 3.9100in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-3-9100in-x-5-64in-moly-claimer-top-compression-ring-moly-ri-t14-52125
Price: 445.62 USD
Availability: BackOrder

Mahle Rings 3.9100in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set (48 Qty Bulk Pack)

$445.62

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 Moly Claimer Top Compression Ring Set. This bulk pack of 48 rings is for 3.9100in bore engines and features a moly top ring.

Key Features

Fits engines with a 3.9100-inch bore size.
Features a Moly Claimer top compression ring for improved wear resistance and reduced friction.
Includes 48 rings per pack, suitable for multiple engines or shop use.
Manufactured by Mahle OE, known for engine components.
Top compression ring width is 5/64 inch.

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Product Details

Mahle OE offers this bulk pack of 48 Moly Claimer Top Compression Rings, designed for a 3.9100-inch bore. These rings are a key component for rebuilding or refreshing an engine, ensuring proper sealing between the piston and cylinder wall. The moly coating on the top ring helps reduce friction and wear, which is especially important in high-performance or heavy-duty applications where heat and stress are greater.

This set is well-built with Mahle's reputation for engine components. The 5/64-inch width for the top compression ring is a common size, making it suitable for a wide range of engine builds. Having 48 rings in a pack means you have plenty for multiple engines or for shops that frequently work on engines requiring this specific size. Proper ring installation is crucial for engine performance and longevity, so ensure you follow manufacturer guidelines during your rebuild.

Please note that this ring set is not CARB approved and cannot be shipped to California. Always check your specific engine's requirements and consult with a professional if you're unsure about compatibility or installation procedures.