What does 'standard tension' mean for these piston rings?

Standard tension rings are designed to provide a good seal against the cylinder wall without excessive force. This is a common specification that balances sealing performance with reduced wear on the cylinder walls and the rings themselves.

What is the significance of the 4.375 inch bore size?

This measurement indicates the diameter of the cylinder that these rings are designed to fit. It's crucial to match the ring set's bore size to your engine's cylinder bore for a proper seal and optimal performance.

Are these rings suitable for all engine rebuilds?

These are standard tension rings for a 4.375 inch bore. While Mahle OE is a well-known brand, always consult your specific engine's service manual or Mahle's application data to ensure these rings are the correct specification for your particular rebuild project.

Mahle OE Piston Rings PC479 Std Tension 4.375in

Name: Mahle Rings Fire Power PC479 Std Tension 4.375in Plain Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-fire-power-pc479-std-tension-4-375in-plain-ring-set-t14-49934
Price: 189.47 USD
Availability: BackOrder

Mahle Rings Fire Power PC479 Std Tension 4.375in Plain Ring Set

$189.47

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 PC479 Std Tension 4.375in Plain Ring Set. Standard tension rings for a 4.375in bore.

Key Features

Standard tension piston ring set.
Designed for a 4.375 inch bore.
Mahle OE brand offers well-built components.
Essential for proper engine sealing and oil control.

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Product Details

These Mahle OE piston rings are built with standard tension, designed for a 4.375-inch bore. They are a crucial part of your engine's sealing system, working to keep combustion pressure where it belongs and oil out of the combustion chamber. Proper ring seal is essential for engine performance and longevity, affecting everything from power output to oil consumption.

Mahle OE rings are known for their well-built construction, aiming to provide a reliable seal for your engine rebuild. The standard tension design is a common choice for many applications, offering a balance of sealing capability and reduced cylinder wall wear compared to higher tension rings. This set is intended for a standard bore size, meaning it's ready to go right into a freshly machined or un-worn cylinder wall of the specified diameter.

When rebuilding an engine, the piston rings are one of those parts you don't want to skimp on. Mahle OE is a popular choice because they offer a solid option that meets the demands of a proper engine overhaul. Make sure to check manufacturer specifications for proper installation and any required break-in procedures to get the best performance from these rings.