What is a Dykes top ring and why is it used?

A Dykes top ring has a trapezoidal shape that helps it seal more effectively against the cylinder wall, especially under high combustion pressures. This design can improve compression and reduce blow-by in performance or heavy-duty applications.

Are these rings compatible with all engine types?

These rings are specified for a 4.505-inch bore diameter. Compatibility depends on your engine's specific bore size and whether it requires this type of ring configuration. Always consult your engine's service manual.

What does 'Not CARB approved' mean?

CARB (California Air Resources Board) approval is required for certain emissions-related parts sold in California. 'Not CARB approved' means these rings cannot be legally shipped to or installed on vehicles registered in California.

Mahle OE Piston Rings 3010245 - 4.505in Bore

Name: Mahle Rings 4.505in Bore dia 017 PC479 Dykes Top Ring Plain Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-505in-bore-dia-017-pc479-dykes-top-ring-plain-ring-set-t14-50941
Price: 172.01 USD
Availability: BackOrder

Mahle Rings 4.505in Bore dia 017 PC479 Dykes Top Ring Plain Ring Set

$172.01

On Backorder

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

Mahle OE Piston Rings, Part# 3010245. 4.505in bore dia, Dykes top ring. Verified fitment.

Key Features

Fits vehicles with a 4.505-inch bore diameter.
Features a Dykes top ring for improved cylinder sealing.
Manufactured by Mahle OE, a recognized name in engine components.
Part number 3010245.
Not CARB approved; cannot ship to California.

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Product Details

If you're rebuilding the engine in your vehicle and need a reliable set of piston rings, consider this set from Mahle OE. These rings are designed for a 4.505-inch bore diameter and feature a Dykes top ring for improved sealing. Mahle is a well-known name in engine components, and this set is built to meet the demands of engine rebuilding.

This particular set includes a Dykes top ring, which has a unique shape that helps it seal against the cylinder wall more effectively, especially under pressure. The overall construction is solid, aiming to provide good performance and durability for your rebuilt engine. When you're putting an engine back together, the details matter, and quality piston rings are a crucial part of ensuring proper compression and oil control.

Remember that these rings are not CARB approved and cannot be shipped to California. Always refer to your vehicle's specific service manual for detailed installation procedures and any other components you might need for your engine rebuild.