What is the compression ratio of this piston set?

This Mahle piston set is designed to achieve a compression ratio of 8.6:1. This is achieved through the combination of the piston's -21cc dish, the 78.9mm stroke, and a 150mm connecting rod length.

Are these pistons suitable for a turbocharged or supercharged engine?

Yes, the forged construction of these pistons makes them well-suited for boosted applications like turbochargers or superchargers. They are built to withstand the higher cylinder pressures and temperatures associated with forced induction.

What is included in this piston set?

This product is a set of four Mahle MS pistons. It includes the pistons themselves, but typically does not include piston rings or wrist pins unless explicitly stated by the manufacturer. Please check the product details for a complete list of included components.

Mahle Forged Piston Set 101mm Bore 24mm Pin 930070776

Name: Mahle MS Piston Set Por 2.5L 101mm Bore 78.9mm Stroke 150mm Rod 24mm Pin -21cc 8.6 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-por-2-5l-101mm-bore-78-9mm-stroke-150mm-rod-24mm-pin-2-t14-191458
Price: 913.52 USD
Availability: BackOrder

Mahle MS Piston Set Por 2.5L 101mm Bore 78.9mm Stroke 150mm Rod 24mm Pin -21cc 8.6 CR Set of 4

$913.52

On Backorder

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

Mahle forged piston set for 2.5L engines. 101mm bore, 24mm pin, 8.6 CR. Part# 930070776. Not CARB approved.

Key Features

Verified fitment for 2.5L engines.
Forged construction for strength and durability.
101mm bore size.
78.9mm stroke and 150mm connecting rod length.
Features a -21cc dish for a 8.6:1 compression ratio.
Includes a 24mm wrist pin diameter.

This piston set is designed for 2.5L engines. Please verify compatibility with your specific vehicle's engine specifications before purchase.

⚠️ 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

If you're rebuilding the engine in your 2.5L vehicle and need a solid set of pistons, Mahle's MS Piston Set is a well-built option. These pistons are designed for performance builds, featuring a 101mm bore and a 24mm wrist pin diameter. The -21cc dish combined with the 78.9mm stroke and 150mm connecting rod length results in a compression ratio of 8.6:1, which is ideal for boosted applications or engines running higher octane fuel.

Mahle is a well-known name in engine components, and this set is made from strong materials suitable for demanding use. The forged construction means these pistons can handle higher cylinder pressures and temperatures compared to cast pistons, making them a popular choice for engine builds where reliability and performance are key. The specific dimensions – 101mm bore, 78.9mm stroke, 150mm rod length, and 24mm pin – are crucial for ensuring proper fitment and achieving the desired compression ratio. It's important to note that these pistons are not CARB approved and cannot be shipped to California.

This set includes four pistons, ready for installation in your 2.5L engine. Always refer to the manufacturer's installation instructions for precise details on fitting these pistons, including ring installation and proper lubrication. Ensure you have the correct connecting rods and crankshaft to match these specifications for a successful engine build.