What does '0.030 inch undersize' mean for these piston rings?

This means the rings are designed to fit pistons that have been machined to be 0.030 inches larger in diameter than their original size. This is common during engine rebuilds where cylinders are bored out to correct wear or increase displacement.

Are these rings compatible with all 318 engines?

These rings are specifically for 318 and 5.2L engines from the specified years, and they are 0.030 inch undersize. You must verify that your engine's cylinders have been bored to this specific oversize for them to fit correctly.

What is the benefit of Mahle OE piston rings?

Mahle OE rings are designed to meet original equipment standards, focusing on reducing friction and oil consumption. This approach aims to improve engine efficiency and extend the service life of the engine.

Mahle OE Piston Rings 50069CP.030 - 318 5.2L Engines

Name: Mahle Rings Case Checker 318 Eng 59-66 Chry 318 5.2L Eng 75-89 Chry Ind Engs Plain Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-case-checker-318-eng-59-66-chry-318-5-2l-eng-75-89-chry-ind-t14-50574
Price: 74.12 USD
Availability: BackOrder

Mahle Rings Case Checker 318 Eng 59-66 Chry 318 5.2L Eng 75-89 Chry Ind Engs Plain Ring Set

$74.12

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 for 318 5.2L engines. These are 0.030 inch undersize rings for improved sealing.

Key Features

Fits 118+ vehicle make/model combinations.
These are 0.030 inch undersize piston rings.
Designed to reduce friction and minimize oil consumption.
Built to meet original equipment manufacturer requirements.
Mahle OE is a well-known brand for engine components.

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Will this fit your vehicle?

Product Details

These Mahle OE piston rings are precisely 0.030 inch undersize, meaning they're made to fit pistons that have been bored out by 0.030 inches during an engine rebuild. Mahle is known for making technically advanced piston rings that are driven by original equipment requirements. They focus on reducing friction and ring mass, which helps minimize oil consumption and can lead to a longer service life for your engine.

When you're rebuilding an engine, especially a classic Mopar V8 like the 318, getting the right piston rings is crucial for proper sealing and performance. These rings are designed to meet the demands of OE specifications, aiming for efficiency and durability. They are a solid option for many Chrysler and Dodge applications from the late 1950s through the late 1980s, covering a wide range of cars, trucks, and vans.

If you're in the middle of a 318 engine rebuild, these Mahle rings are a well-built choice. Make sure to confirm that your engine bore has been machined to 0.030 inches oversize before ordering, as these are not standard size rings.