What is the benefit of the plasma-molydbenum coating?

The plasma-molydbenum coating creates a hard, wear-resistant surface on the piston rings. This helps reduce friction against the cylinder walls and improves oil control, contributing to better engine longevity and performance.

What does the 'dykes style' top ring mean?

A dykes style top ring has a specific shape that helps prevent the ring from fluttering or lifting away from the cylinder wall at high engine speeds. This design promotes better sealing and more consistent power delivery.

What kind of engine builds are these rings best suited for?

These rings are well-suited for engine rebuilding projects, especially those that involve performance enhancements or heavy-duty applications. The durable coating and design features help them withstand demanding use.

Mahle OE Piston Rings 4.187in Plasma-Moly Dykes Moly Ring Se

Name: Mahle Rings 4.187in X 5/65in PC479 Plasma-Moly Dykes Moly Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-187in-x-5-65in-pc479-plasma-moly-dykes-moly-ring-set-48-q-t14-51350
Price: 831.91 USD
Availability: BackOrder

Mahle Rings 4.187in X 5/65in PC479 Plasma-Moly Dykes Moly Ring Set (48 Qty Bulk Pack)

$831.91

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 4.187in bore size, Plasma-Moly Dykes Moly Ring Set. Bulk pack for engine builds.

Key Features

Fits a 4.187-inch cylinder bore.
Features a 5/64-inch ring size.
Plasma-molydbenum coating offers a hard, wear-resistant surface.
Dykes style top ring helps prevent flutter at higher RPMs.
Bulk pack includes 48 sets of piston rings.
Designed for engine rebuilding and performance applications.

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Product Details

The plasma-molydbenum coating on these Mahle piston rings is a key feature, offering a hard, wear-resistant surface that mates well with cylinder walls. This particular set is designed for a 4.187-inch bore and features a 5/64-inch ring size, commonly found in many performance and heavy-duty engine applications. The dykes style top ring is a design choice that helps prevent ring flutter at higher RPMs, contributing to better sealing and more consistent power delivery.

Mahle has a long history of supplying OE and performance engine components, and this bulk pack of 48 ring sets is aimed at engine builders or shops working on multiple projects. The plasma-molydbenum coating is known for its ability to reduce friction and improve oil control, which are critical for engine longevity and performance. This type of ring is often chosen when rebuilding engines that see demanding use, as the durable coating stands up well to heat and stress.

When installing these rings, proper cylinder wall preparation and ring gap setting are crucial for optimal performance and sealing. Ensure your pistons are clean and free of any debris before fitting the rings. This bulk pack is a practical choice for those undertaking significant engine work, providing a ready supply of well-made components.