What is the compression ratio of these pistons?

These Mahle MS pistons contribute to an 8.6:1 compression ratio when installed with the appropriate cylinder heads and gasket combination for the EJ20 engine.

What material are these pistons made from?

The pistons are constructed from 2618 aluminum alloy, which is known for its strength and ability to withstand high temperatures and pressures common in performance engines.

Are these pistons compatible with all EJ20 engines?

This set is specifically designed for EJ20 engines with a 93.00mm bore and is intended for use with a 75.0mm stroke and 130.5mm connecting rod. It is not CARB approved and cannot be shipped to California.

Mahle EJ20 Piston Set 93mm Bore 929927961

Name: Mahle MS Piston Set EJ20 93.00mm Bore 75.0mm Stroke 130mm Rod 23mm Pin -12cc 8.0 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-ej20-93-00mm-bore-75-0mm-stroke-130mm-rod-23mm-pin-12c-t14-191503
Price: 749.22 USD
Availability: BackOrder

Mahle MS Piston Set EJ20 93.00mm Bore 75.0mm Stroke 130mm Rod 23mm Pin -12cc 8.0 CR Set of 4

$749.22

On Backorder

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

Mahle MS Piston Set for Subaru EJ20 2.0L engines. 93mm bore, -12cc dish, 8.6 CR. Set of 4.

Key Features

Set of 4 Mahle MS pistons for Subaru EJ20 2.0L engines.
Features a 93.00mm bore size.
Designed for a 75.0mm stroke and 130.5mm connecting rod.
Includes a 23mm wrist pin.
Each piston has a -12.0cc dish volume.
Contributes to an 8.6:1 compression ratio.

This piston set is designed for Subaru EJ20 2.0L engines. It is not CARB approved and cannot be shipped to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Mahle is a well-known name in engine components, recognized for their comprehensive range of pistons, rings, and gaskets. This MS Piston Set is built for the Subaru EJ20 engine, specifically for builds requiring a 93.00mm bore. These pistons are designed to work with a 75.0mm stroke and a 130.5mm connecting rod, featuring a 23mm wrist pin for a solid connection.

Each piston has a -12.0cc dish volume, which contributes to an 8.6:1 compression ratio when paired with the correct components. This CR is a notable change from stock, offering a good balance for performance-oriented EJ20 builds. The pistons themselves weigh 369g, which is a reasonable weight for forged aluminum construction, helping to keep reciprocating mass in check. The 2618 aluminum alloy used in their construction is known for its strength and durability under demanding conditions.

This set includes four pistons, ready for installation in your EJ20 engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures, especially regarding ring gap and piston-to-wall clearance.