What does '3/16in EW CP20 Std Tens' mean for the oil ring?

This refers to the specific dimensions and tension of the oil ring assembly. '3/16in' is the width, 'EW' likely denotes a specific type of expander, 'CP20' is a Mahle internal designation for the oil ring type, and 'Std Tens' means it uses standard tension components for a reliable seal.

Why are these rings sold in a bulk pack of 48?

The bulk pack of 48 rings is intended for professional mechanics or engine builders who frequently work on multiple engines or larger projects. It ensures you have enough rings on hand for several rebuilds without needing to order smaller sets repeatedly.

What is the benefit of chrome plating on piston rings?

Chrome plating on piston rings helps to increase their hardness and wear resistance. This leads to a longer service life for the rings and helps maintain a consistent seal against the cylinder wall, which is important for engine performance and oil control.

Mahle OE Piston Ring Set 3030361B

Name: Mahle Rings 4.560in Bore Dia 3/16in EW CP20 Std Tens. Oil Ring Asbly. Chrome Ring Set (48 Qty Bulk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-4-560in-bore-dia-3-16in-ew-cp20-std-tens-oil-ring-asbly-chr-t14-50904
Price: 304.37 USD
Availability: BackOrder

Mahle Rings 4.560in Bore Dia 3/16in EW CP20 Std Tens. Oil Ring Asbly. Chrome Ring Set (48 Qty Bulk)

$304.37

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 Ring Set for 4.560in bore. Features 3/16in EW CP20 Std Tens. Oil Ring Asbly. Chrome Ring Set (48 Qty Bulk).

Key Features

Fits engines with a 4.560 inch bore diameter.
Features a 3/16 inch EW CP20 standard tension oil ring assembly.
Chrome ring set construction for improved durability and sealing.
Bulk pack includes 48 rings, suitable for multiple engine builds.
Designed to meet original equipment specifications for reliable performance.
Mahle OE is a trusted brand for engine components.

This is a bulk pack of 48 rings designed for engines with a 4.560 inch bore diameter. Check manufacturer specifications to confirm compatibility with your specific engine application.

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Product Details

Starting with a 3/16 inch EW CP20 standard tension oil ring assembly, this Mahle OE chrome ring set is built for demanding engine rebuilds. Each set contains 48 rings, making it a bulk option for shops working on multiple engines or larger projects. Mahle is a well-known name in engine components, and these rings are designed to meet the original equipment specifications for a proper fit and function.

The 4.560 inch bore diameter is a key measurement for ensuring these rings seal correctly within the cylinder walls. The chrome plating on the rings helps them resist wear and maintain a tight seal against the cylinder bore, which is crucial for maintaining compression and preventing oil from entering the combustion chamber. This attention to material and design helps ensure a solid rebuild that can stand up to regular use.

Because these are sold in bulk quantities of 48, they are a practical choice for professional mechanics or serious DIYers who need a reliable supply of high-performance piston rings for a variety of applications. Remember that this set is not CARB approved and cannot be shipped to California.