What is the purpose of an oil ring assembly?

The oil ring's main job is to scrape excess oil from the cylinder wall as the piston moves down. This prevents oil from entering the combustion chamber, which helps control oil consumption and exhaust smoke.

What does 'standard tension' mean for an oil ring?

Standard tension means the oil ring is designed to apply a consistent, moderate amount of pressure against the cylinder wall. This is suitable for most general engine applications and ensures a good seal without excessive wear.

Can this oil ring assembly be used in all engine builds?

This specific oil ring assembly is designed for a 4.025-inch bore and has specific ring dimensions. It's important to match these specifications to your piston and cylinder bore size for proper fitment and function.

Mahle OE Oil Ring Assembly 3030857 - Standard Tension

Name: Mahle Rings Perf Oil Ring Assembly 4.025in x 2.0MM .113in RW Std Tension Chrome Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-oil-ring-assembly-4-025in-x-2-0mm-113in-rw-std-tension-t14-48825
Price: 41.32 USD
Availability: BackOrder

Mahle Rings Perf Oil Ring Assembly 4.025in x 2.0MM .113in RW Std Tension Chrome Ring Set

$41.32

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 standard tension oil ring assembly for 4.025in bores. Features a 2.0mm x .113in chrome oil ring.

Key Features

Fits a 4.025 inch cylinder bore.
Features a 2.0mm width oil ring.
The oil ring is .113 inches in height.
Standard tension oil ring for reliable sealing.
Chrome plating on the oil ring enhances durability and reduces friction.
This is an oil ring assembly, typically part of a larger piston ring set.

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Product Details

This Mahle OE oil ring assembly features a 4.025-inch bore size and a 2.0mm by .113-inch chrome oil ring with standard tension. This specific sizing and material choice is crucial for proper sealing within the cylinder bore, helping to control oil consumption and maintain consistent compression. The standard tension design ensures a reliable seal against the cylinder wall under normal operating conditions.

Mahle is a well-known name in engine components, and this oil ring assembly is built to meet the demands of engine rebuilding. The chrome plating on the oil ring offers improved wear resistance and helps it glide smoothly against the cylinder wall, reducing friction and heat buildup. This attention to material and design detail is what you expect from a reputable engine parts manufacturer.

When rebuilding an engine, ensuring all components work together is key. This oil ring assembly is designed to be a direct replacement for specific applications, making installation straightforward as part of a larger piston and ring set. Always refer to your vehicle's service manual for specific installation procedures and torque specifications.